Archive for May 2017

NO2 favoured temperatures below

NO2 favoured temperatures below




A. 9000K
B. 3000K
C. 5000K
D. 4000K
E. 1000K




Answer: E

Sulphur Oxides are contained in?

Sulphur Oxides are contained in?



A. Coals
B. Fuel oils
C. Hot springs
D. All of the above





Answer: D

Ozone problem produced is?

Ozone problem produced is?



A. A very poisonous gas
B. A greenhouse gas
C. Destroys ozone after rising to the stratosphere
D. Hazardous to health and corrosive to many materials in the lower atmosphere.
E. The main heat trapping gas responsible for the greenhouse effect





Answer: D

Chlorofluorocarbons problem produced is?

Chlorofluorocarbons problem produced is?



A. A very poisonous gas
B. A greenhouse gas
C. Destroys ozone after rising to the stratosphere
D. Hazardous to health and corrosive to many materials in the lower atmosphere.
E. The main heat trapping gas responsible for the greenhouse effect




Answer: C

Methane problem produced is?

Methane problem produced is?



A. A very poisonous gas
B. A greenhouse gas
C. Destroys ozone after rising to the stratosphere
D. Hazardous to health and corrosive to many materials in the lower atmosphere.
E. The main heat trapping gas responsible for the greenhouse effect





Answer: B

Carbon Monoxide problem produced is?

Carbon Monoxide problem produced is?



A. A very poisonous gas
B. A greenhouse gas
C. Destroys ozone after rising to the stratosphere
D. Hazardous to health and corrosive to many materials in the lower atmosphere.
E. The main heat trapping gas responsible for the greenhouse effect





Answer: A

Carbon Dioxide problem produced is?

Carbon Dioxide problem produced is?



A. A very poisonous gas
B. A greenhouse gas
C. Destroys ozone after rising to the stratosphere
D. Hazardous to health and corrosive to many materials in the lower atmosphere.
E. The main heat trapping gas responsible for the greenhouse effect






Answer: E

RED is used to treat?

RED is used to treat?




A. Shock
B. Broken bones
C. Chocking
D. Bleeding
E. Stroke




Answer: D

How do you treat a stroke?

How do you treat a stroke?




A. Rest
B. Artificial Respiration
C. CPR
D. Medication
E. A and C





Answer: E

How do you treat cardiac arrest?

How do you treat cardiac arrest?




A. CPR
B. Artificial Respiration
C. Medication
D. All of the above




Answer: A

How do you treat a hear attack?

How do you treat a hear attack?




A. Rest
B. Artificial Respiration
C. Medication
D. CPR
E. A and D



Answer: E

How do you treat Angina?

How do you treat Angina?



A. CPR
B. Artificial Respiration
C. Medication
D. All of the above




Answer: C

What does the left side and right side do in the heart?

What does the left side and right side do in the heart?




A. Left - pumps deoxygenated blood, Right - pumps blood to the entire body
B. Left - pumps blood to the entire body, Right - pumps oxygenated blood
C. Left - pumps blood to the entire body, Right - pumps deoxygenated blood
D. Left - pumps oxygenated blood, Right - pumps blood to the entire body
E. None of the above



Answer: C

Which one is NOT part of the EMS system?

Which one is NOT part of the EMS system?




A. Paramedics
B. Firefighters
C. Police officer
D. Doctors
E. Nurses






Answer: C

A cardiovascular condition in which there is an excessive buildup of materials such as cholesterol and fatty acids in the vessels, causing a narrowing or "hardening" of the arteries.

A cardiovascular condition in which there is an excessive buildup of materials such as cholesterol and fatty acids in the vessels, causing a narrowing or "hardening" of the arteries.



A. Cardiac arrest
B. Artificial respiration
C. Atherosclerosis
D. Asphyxia
E. Angina




Answer: C

Another name for Trachea is?

Another name for Trachea is?




A. Windpipe
B. Throat
C. Nose
D. Mouth
E. Atherosclerosis



Answer: A

One symptom that a person in shock may display is:

One symptom that a person in shock may display is: 



a. Squeezing pain
b. Strong but slow pulse
c. Shortness of breath
d. Cold and clammy skin
e. Radiating chest pain




Answer: D

The term "pop or drop" refers to:

The term "pop or drop" refers to:



a. Choking
b. Angina attacks
c. Dislocated joints
d. Stroke symptoms
e. Artificial resuscitation





Answer: A

A stroke is a condition that occurs when:

A stroke is a condition that occurs when:



a. There is an inadequate supply of blood to the brain
b. The heart is not getting enough oxygen
c. Body parts do not receive enough oxygenated blood
d. Air is restricted to the lungs
e. The heart stops beating completely





Answer: A

Angina is a condition that occurs when:

Angina is a condition that occurs when:




a. The pathway through which air moves to the lungs is blocked
b. The body does not contain sufficient oxygenated blood
c. There is an inadequate blood supply to the brain
d. The heart stops completely
e. The heart is not getting enough oxygen




Answer: E

The Xiphoid Process is:

The Xiphoid Process is:




a. A method of aligning broken bones
b. An area of the chest on which CPR is performed
c. A series of small cartilage-like bones protruding from the bottom of the sternum
d. A method of locating bones in the body
e. A method for finding pulse





Answer: C

The carotid artery is located:

The carotid artery is located:



a. In the thigh area
b. In the left side of the chest
c. Just above the arm pit
d. In the right temple
e. In the neck





Answer: E

When performing abdominal thrusts on a choking victim, if the victim becomes unconscious your initial reaction should be to:

When performing abdominal thrusts on a choking victim, if the victim becomes unconscious your initial reaction should be to:



a. Increase the rate of abdominal thrusts.
b. Place the victim on his back and perform a finger sweep of his mouth.
c. Give two quick breaths.
d. Place the victim on his stomach and press into his back.
e. Begin CPR at the rate of 15 compressions to 2 breaths.




Answer: B

You notice that one of the men you are working with is lying on the ground. If you find that his breathing has stopped, you would:

You notice that one of the men you are working with is lying on the ground. If you find that his breathing has stopped, you would:




a. Give him something to drink and then send for help
b. Send for a doctor
c. Phone the shift supervisor
d. Start artificial respiration immediately and send for help
e. Cover him with a blanket and run for help




Answer: D

When the pulse is checked at the neck of the victim, it should be done on the side of the neck nearest you:

When the pulse is checked at the neck of the victim, it should be done on the side of the neck nearest you:



a. So that it will not appear that you are choking the victim
b. To prevent obstruction of the airway
c. So that you can see the artery pulse
d. So that you can simultaneously check for breathing
e. In order to maintain visibility of your fingers




Answer: B

If an injured person is unconscious:

If an injured person is unconscious:



a. Do not perform any first aid
b. Notify EMS before doing anything
c. Assume you have consent to provide first aid
d. Do not survey the area until notifying EMS
e. Identify yourself, regardless of the person's condition





Answer: C

When isolating a motor for maintenance, you should

When isolating a motor for maintenance, you should






A. remove the fuses
B. install a lockout clamp on the breaker handle
C. place a DO NOT OPERATE tag on the breaker
D. do all of the above




Answer: D

After completing the isolation of equipment, you must

After completing the isolation of equipment, you must



A. Open the equipment drain valve
B. Close the equipment outlet valve
C. Notify the foreman
D. Enter the completed isolations in the log book





Answer: D

If a person is not sure a piece of equipment is safe to work on, they should?

If a person is not sure a piece of equipment is safe to work on, they should?




A. Ask the foreman if it is safe
B. Ask a qualified worker to indicate and explain the points of isolation
C. check with a co-worker before proceeding
D. rely fully on the permit information




Answer: B

What is the first step in isolating a steam boiler?

What is the first step in isolating a steam boiler?



A. Install a blind flange downstream of the fuel gas valve
B. Install a blind flange downstream of the feedwater isolation valve
C. Isolate motor for the forced draft fan
D. Install a blind flange upstream of the blowdown valve





Answer: C

A Blind Flange must contain what information?

A Blind Flange must contain what information?



A. Spacing to be installed, Date installed and by whom, Tag number
B. Operator, Location, Manufacturer information
C. Date removed and by whom, WHMIS label, Size of blind
D. Date installed and by whom, Contact information, Location




Answer: A

What is the first step in isolation of a Pump and Driver?

What is the first step in isolation of a Pump and Driver?



A. Close high pressure steam supply valve
B. Close the turbine low pressure steam exhaust
C. Open the turbine casing drain
D. Close the pump discharge valve



Answer: A

The advantage of a rising spindle steam stop valve is that:

The advantage of a rising spindle steam stop valve is that:





a. you can tell from a distance if the valve is open or closed
b. it provides a place to install isolation tags
c. it may be easily lubricated
d. the threaded part is not exposed to corrosion by the high temperature steam






Answer: A, C & D.

In order to ensure safe and continuous operation of a pressure reducing valve, the valve station should have:

In order to ensure safe and continuous operation of a pressure reducing valve, the valve station should have:



a. a safety valve on the downstream side
b. a by-pass loop, downstream safety valve. and a downstream pressure gauge.
c. the piping to the station made of at least Schedule 80 piping
d. a Y-strainer immediately after the valve
e. a metal rather than composition diaphragm





Answer: B

A check valve is a valve that:

A check valve is a valve that:



a. allows flow in one direction only
b. allows flow in two directions
c. allows flow at regular intervals
d. does not allow any flow at all
e. has a locking spindle





Answer: A

A gate valve:

A gate valve:




a. has less restriction in a line than a globe valve
b. should be operating either fully open or fully closed
c. is used to throttle flow
d. is used for different applications than a globe valve




Answer: A, B & D.

The by-pass around a regulating valve should contain a:

The by-pass around a regulating valve should contain a:



a. rising stem gate valve
b. non-rising stem gate valve
c. swing check valve
d. rising stem globe valve
e. lift type check valve





Answer: D

Service designation of a valve indicates the:

Service designation of a valve indicates the:



a. type of liquid used in the valve
b. type of gas used in the valve
c. temperature-pressure rating of the valve
d. maximum pipe fluid flow velocity
e. maximum viscosity of the fluid






Answer: C

In order to extend the life of valve packing we can:

In order to extend the life of valve packing we can:




a. operate the valve at lower temperatures
b. lubricate the packing regularly with oil
c. replace the packing annually
d. manipulate the valve slower
e. manipulate the valve on a regular basis





Answer: B

A globe valve:

A globe valve: 



a. has less restriction in a line than a gate valve
b. should be operated either fully open or fully closed
c. is used to throttle flow
d. is used for different applications than a gate valve





Answer: C & D.

All markings on valves shall be:

All markings on valves shall be:



a. painted with black paint
b. made with capital letters
c. covered for protection
d. legible
e. written vertically in capital letters






Answer: D

The material designation of a valve:

The material designation of a valve:



a. gives where the material is used
b. tells what material makes up the valve
c. gives the temperature to which the valve can be subjected
d. tell what the material is suited for
e. is not required for low pressure steam service





Answer: B

The operation of a mechanical steam trap depends on the:

The operation of a mechanical steam trap depends on the:




a. difference in temperature between the steam and condensate
b. difference in specific gravity between the steam and condensate
c. difference in pressure between the steam and condensate
d. liquid level in the condensate tank
e. liquid level in the steam trap





Answer: E

When tightening pipe flange bolts:

When tightening pipe flange bolts:




a. tighten them in sequence
b. the gasket should be held in place by gasket glue
c. the top bolts must be tightened first
d. use a cross-over method or a criss-cross method of tightening
e. tighten every second bolt then tighten the others





Answer: D

Before admitting any steam to a steam piping system it is imperative to first:

Before admitting any steam to a steam piping system it is imperative to first:




a. warm up the line properly
b. positively ensure that no water or condensate exists in the piping
c. ensure drain valves are closed
d. crack open the steam valve
e. ensure the steam pressure is at maximum value allowed without the boiler safety valve opening





Answer: B

By using backing rings in butt welded pipes, the backing rings serves to:

By using backing rings in butt welded pipes, the backing rings serves to:



a. reinforce the pipe because of beveling at the joint
b. reduce sludge flow
c. align the pipe
d. support the pipe to the wall
e. prevent welding gases from entering the pipe line





Answer: C

Expansion of piping is controlled by:

Expansion of piping is controlled by:



a. anchoring the pipe at both ends to prevent movement
b. installing a corrugated expansion joint in the line
c. installing an expansion bend in the line
d. anchoring the pipe at both ends and installing hangers every five metres





Answer: B & C.

The first step in memo writing is:

The first step in memo writing is:




A) deciding who the memo should be directed to
B) establishing the length of the memo
C) deciding who should receive copies of the memo
D) deciding the main purpose of the memo
E) estimating the costs involved





Answer: D

The middle of a memo provides the:

The middle of a memo provides the:




A) objectives
B) expected action
C) specifics of the topic
D) recommendation
E) purpose






Answer: C

The subject line should include:

The subject line should include:



A) the main idea of the memo expressed in a sentence
B) the main subject and purpose of the memo expressed in a phrase
C) the purpose of the memo expressed as a complete sentence
D) the name of the receiver
E) the date the memo was written





Answer: B

Which of the following functions is not served by the subject line?

Which of the following functions is not served by the subject line?



a) Identification of the purpose and content of the memo
b) Total number of pages in the memo
c) Assists in filing and retrieving the document
d) Indicates immediately whether the memo requires actions or gives information






Answer: B

White space on a page of text refers to the

White space on a page of text refers to the



a) size of the margins
b) middle section
c) size of the memo
d) empty space






Answer: D

Ultrasonic Inspection involves the use of:

Ultrasonic Inspection involves the use of:




a. short wavelength radiation
b. high frequency vibrations
c. fluorescent penetrant dye
d. radiographic penetrameter
e. gamma rays




Answer: B

Submerged arc welding is:

Submerged arc welding is:



a. an oxyacetylene welding process
b. An AC electric welding process
c. Normally an automatic process
d. A DC electric welding process
e. All of the above





Answer: C

With reverse polarity:

With reverse polarity:



a. the welding electrode is connected to the negative terminal
b. AC power is supplied to the electrode
c. the welding electrode is connected to the positive terminal
d. AC or DC power may be supplied to the electrode
e. DC power is supplied to the electrode




Answer: C

With straight polarity:

With straight polarity:



a. AC or DC power may be supplied to the electrode
b. DC power is supplied to the electrode
c. the welding electrode is connected to the negative terminal
d. AC power is supplied to the electrode
e. the welding electrode is connected to the positive terminal




Answer: C

Rule for uses of radiographic and ultrasonic inspection are covered in the:

Rule for uses of radiographic and ultrasonic inspection are covered in the:



a. Rules for Care and Operation of Power Boilers Code
b. ASME Section IX - Welding and Brazing Qualifications
c. Canadian Standards B-51
d. Power Boiler Code Section I
e. ASME Section II - Materials Specification





Answer: D

Advantages of submerged arc welding include:

Advantages of submerged arc welding include: 






a. a protective coating is not requires over the electrode
b. the arc is not visible
c. weld seams are neat and uniform in appearance
d. a skilled welder is not requires to operate the machinery
e. very little gas or fumes rise from the weld.






Answer: A, B & E.

Non-destructive testing of a weld could mean:

Non-destructive testing of a weld could mean:



a. testing the weld by means of chemical analysis
b. raising the hydrostatic pressure on a vessel to the point of rupture
c. mechanical testing of a sample or small portion of a weld
d. thermal shocking a vessel to the point of fracture
e. subjecting the weld to a radiographic inspection






Answer: E

A rectifier used in arc welding:

A rectifier used in arc welding:



a. will produce a temperature in the range of 700 to 830 degrees
b. will change AC to DC
c. is used for weld inspection
d. will rectify slag inclusions problems
e. produces an arc in the temperature range of 8,300 to 13,000 degrees C




Answer: B

A "tinning temperature" is used in:

A "tinning temperature" is used in:






a. soldering
b. brazing
c. forging
d. electric arc welding
e. metal cutting





Answer: B

When chromium is added to alloy steel it produces:

When chromium is added to alloy steel it produces:




a. increased toughness
b. increased ductility
c. increased hardness
d. improved machinability
e. improved malleability




Answer: C

Pig iron is:

Pig iron is:



a. made from cast iron
b. low in carbon content
c. made from iron ore
d. made from bauxite
e. white cast iron




Answer: C

Nickel, when added to steel:

Nickel, when added to steel:




a. improves plasticity and brittleness
b. decreases toughness and corrosion resistance
c. improves malleability
d. decreases hardness and brittleness
e. improves toughness and corrosion resistance




Answer: E

Wrought Iron:

Wrought Iron:



a. is stronger than steel
b. is corrosion resistant
c. is a non-ferrous metal
d. contains a high percentage of carbon
e. is produced by annealing





Answer: B

When nickel is added to alloy steel, it:

When nickel is added to alloy steel, it:




a. produces increased hardness
b. produces improved machinability
c. causes brittleness
d. produces improve corrosion resistance
e. produces improved elasticity





Answer: D

Malleability of a metal

Malleability of a metal



a. will usually decrease as the temperature rises
b. is checked using the charpy tester
c. means it will crack when struck with a hammer
d. usually increases with the addition of heat
e. means the same as "toughness"






Answer: D

Iron is:

Iron is:




a. made of brass
b. magnetic
c. non-corrosive
d. made of copper
e. made of copper and brass




Answer: B

Which type of cast iron is the toughest?

Which type of cast iron is the toughest?



a. white cast iron
b. dark gray cast iron
c. wrought iron
d. pig iron
e. malleable cast iron






Answer: E

Bearing metal:

Bearing metal: 




a. is sometimes called babbitt metal
b. is sometimes called white metal
c. can be heated to any temperature
d. can be made for different types of service





Answer: A, B & D.

In order to avoid residual stresses after welding, alloy steels:

In order to avoid residual stresses after welding, alloy steels:




a. cannot contain any carbon
b. must contain copper
c. are not affected by carbon content
d. should be heated before, during, and after welding
e. must be heated after welding




Answer: D

In the process of forming iron, limestone is added to:

In the process of forming iron, limestone is added to:



a. pig iron molds
b. the iron ore in the molds
c. the molten iron ore in order to form slag
d. making the resulting pig iron more malleable
e. increase the pig iron elasticity




Answer: C

To lessen environmental incident, operating personnel should know:

To lessen environmental incident, operating personnel should know:



a. the material they are dealing with
b. the isolation points in the process
c. that is requires to contain a release
d. the problems that an upset in a process may cause to the environment
e. all of these




Answer: E

"Permanent action":

"Permanent action":




a. deal with and eliminates the root problem
b. allows you to live with the problem indefinitely
c. is unattainable
d. requires a plan to address the problem at the earliest opportunity
e. suggests a time frame for follow up



Answer: A

New facilities such as compressor stations require:

New facilities such as compressor stations require:



a. a soil impact study
b. an air quality impact study
c. a gas conservation study
d. a noise impact statement
e. a wildlife impact statement






Answer: D

Most proficient method of dealing with environmental impacts due to wastes is to ______.

Most proficient method of dealing with environmental impacts due to wastes is to ______.



a. ensure that disposal of material waste confirms with required legislation
b. avoid the generation og hazardous waste
c. conduct periodic inspections of the company used to dispose of hazardous waste
d. use long term storage
e. provide plant personnel with proper protective equipment





Answer: B

Soil contaminated by hazardous material should be:

Soil contaminated by hazardous material should be:




a. flushed with plenty of water
b. neutralized by an acid or basic solution
c. removed, places in sealed containers and disposed of
d. contained within the defined boundary
e. heated to above 500 degrees C to drive off the contaminants



Answer: C

Hazardous material that may migrate, leak or accumulate from storage or operating facilities is dealt with:

Hazardous material that may migrate, leak or accumulate from storage or operating facilities is dealt with:




a. a company liability study
b. an Energy Resources Conservation Board approved plan
c. by identifying the boundaries, taking core samples of the soil to determine the circumference and depth of the area affected
d. by reporting to the Energy Resources Conservation Board
e. by reporting to Provincial Environmental Authorities




Answer: C

When decommissioning and abandoning a processing site

When decommissioning and abandoning a processing site




a. a site restoration proposal must be done
b. an environmental impact study and remedial plan must be made
c. an Energy Resources Conservation Board approved plan must be followed
d. use long term storage
e. provide plant personnel with proper protective equipment




Answer: B

One of the statements below about an existing facility being shut down and decommissioned is false.

One of the statements below about an existing facility being shut down and decommissioned is false.



a. any future liability is of no consequence
b. the site must be left in a condition suitable for alternate uses
c. it must pose no future threat to public health
d. creates no future liability
e. it must pose no future threat to the environment





Answer: A

The first action of plant personnel upon finding unplanned environmental excursion is:

The first action of plant personnel upon finding unplanned environmental excursion is:



a. to report the incident to OH&S
b. to report the incident to Provincial Environmental Authorities
c. to report the incident to E.R.C.B.
d. Minimize and control the release
e. alert the rest of the plant personnel





Answer: D

The main components of acid rain are:

The main components of acid rain are:



a. carbonic acid and sulphuric acid
b. nitric acid and carbonic acid
c. nitric acid and sulphuric acid
d. sulphuric acid and acetic acid
e. sulphuric acid and carbonic acid






Answer: C

Ozone is harmful at:

Ozone is harmful at:



a. stratospheric levels in the atmosphere
b. sub-stratospheric levels in the atmosphere
c. upper levels in the atmosphere
d. all levels in the atmosphere
e. lower levels in the atmosphere




Answer: E

Regenerable systems used for flue gas desulphurization:

Regenerable systems used for flue gas desulphurization:




a. are less expensive than non-regenerable methods
b. use lime or limestone in scrubbing the flue gas
c. produce a marketable by-product
d. are better developed and more widely applied than non-regenerable systems
e. produces no marketable by-product




Answer: C

Hydrogen as an alternative fuel is considered ideal because:

Hydrogen as an alternative fuel is considered ideal because:



a. it burns at low temperatures therefore minimizing nitrogen oxide formation
b. it has nearly the same heating value as carbon
c. it is safe and easy to store
d. water vapour is the only product combustion
e. the cost of production is minimal





Answer: D

The greenhouse gases allow:

The greenhouse gases allow:



a. high energy waves to pass
b. low energy waves to pass
c. long energy waves to pass
d. short every waves to pass
e. allow all energy levels to pass




Answer: A

Carbon dioxides is responsible for:

Carbon dioxides is responsible for:




a. 20% of greenhouse gases
b. 30% of greenhouse gases
c. 40% of greenhouse gases
d. 50% of greenhouse gases
e. 60% of greenhouse gases




Answer: D

In order for acid rain to be formed:

In order for acid rain to be formed:




a. atmospheric temperatures must be correct
b. water vapour must be present
c. sunlight must be present
d. water vapour and cool temperatures must apply
e. water vapour and sunlight must be present



Answer: E

To reduce nitrogen oxides in the flue gas, the dual register burner:

To reduce nitrogen oxides in the flue gas, the dual register burner:



a. reduces turbulence to delay combustion hence reducing temperatures
b. completes combustion in the burner tube before the furnace area
c. supplies cooling air to reduce furnace temperature
d. increases turbulence for most efficient combustion
e. uses maximum excess air for combustion at high temperatures




Answer: A

The two main growth nutrients carried by domestic sewage are:

The two main growth nutrients carried by domestic sewage are:



a. sulphates and nitrates
b. nitrates and phosphates
c. phosphates and sulphates
d. sulphates and suspended solids
e. sludge and dissolved solids




Answer: B

The pH of industrial effluent can be controlled:

The pH of industrial effluent can be controlled:




a. by the addition of acid
b. by the addition of alkaline
c. by the addition of water
d. by the use of settling ponds
e. by the addition of acid or alkaline as required





Answer: E

Hazardous material is not a problem unless

Hazardous material is not a problem unless




a. a loss of product is experienced
b. a loss of control is experienced
c. it is noticed b the operating personnel
d. it is present in the environment
e. it is present in the ecosystem





Answer: B

The ability of water to dissolve oxygen

The ability of water to dissolve oxygen



a. increases with the increase in water temperature
b. decreases with the increase in water temperature
c. decreases with the decrease in water temperature
d. does not change with the temperature
e. none of the listed items






Answer: B

Chemical emulsions can be removed by:

Chemical emulsions can be removed by:



a. settling
b. additives
c. centrifugal action
d. gravity
e. all of these





Answer: E

When combustion gases contain SO2,

When combustion gases contain SO2,



a. use of wet scrubbers should be discontinued
v. SO2 with water will form strong alkaline solution
c. the scrubbing water may be treated with lime or dolomite to control water pH
d. SO2 does not react with water
e. higher alkalinity is good for the water.





Answer: C

In an electrostatic precipitator the:

In an electrostatic precipitator the:



a. discharge electrode is negatively charged
b. collector electrode is negatively charged
c. discharge electrode is positively charged
d. particles are positively charged
e. discharge electrode and the particles are positively charged





Answer: A

Wet scrubbers remove:

Wet scrubbers remove:



a. gases only
b. gases and dust only
c. particulate only
d. acidic gases only
e. dust only




Answer: B

An advantage of a wet scrubber over the bad filters is that they:

An advantage of a wet scrubber over the bad filters is that they:




a. are less expensive
b. are easy to operate
c. removes CO2
d. remove ash particles larger than 300 microns
e. simultaneously removes dust and gaseous pollutants





Answer: E

Liquid pollutants emitted from power plants include:

Liquid pollutants emitted from power plants include: 




a. water at elevated temperatures
b. waste water from flue gas scrubbing
c. waste water from water treatment processes
d. waste water from ash handling operations








Answer: A, B, C & D.

Fly ash is normally less than:

Fly ash is normally less than:



a. 1 mm in diameter
b. 0.3 mm in diameter
c. 1,000 microns in diameter
d. 300 microns in diameter
e. 30 microns in diameter






Answer: E

The voltage supplied to an electrostatic precipitator is between:

The voltage supplied to an electrostatic precipitator is between:



a. 10,000 volts AC and 1,000,000 volts AC
b. 10,000 volts DC and 100,000 volts DC
c. 1,000,000 volts AC and 1,000,000 volts AC
d. 100,000 DC and 1,000,000,000 volts AC
e. 100,000 AC and 10,000 volts DC





Answer: B

"The water vapor _____ to form clouds and when the temperature cools, the moisture falls as precipitation (rain or snow) from the clouds back to the rivers and oceans via surface water runoff."

"The water vapor _____ to form clouds and when the temperature cools, the moisture falls as precipitation (rain or snow) from the clouds back to the rivers and oceans via surface water runoff."





a. condenses
b. collects
c. dissipate
d. dries
e. steams






Answer: A

Organisms within an ecosystem can be divided into which groups?

Organisms within an ecosystem can be divided into which groups?




a. Producers, inactive matter and consumers
b. Organic matter, inorganic matter and decomposers
c. Consumers, producers and inorganic matter
d. Decomposers, consumers, and producers
e. Nutrients, consumers and decomposers.






Answer: D

Energy in a food web:

Energy in a food web:



a. Originates from the sun
b. Travels from the top of the web to the bottom
c. Does not leave the web
d. It passed through the food web by heat radiation
e. Is self-sustaining within the food web.




Answer: A

The earth's water cycle is referred to as:

The earth's water cycle is referred to as:




a. A hydrostatic cycle
b. A meteorological cycle
c. A hydrographic cycle
d. A hydrological cycle
e. An elementary cycle





Answer: D

The environment consists of:

The environment consists of:



a. natural and man-made elements
b. Organic and natural elements
c. Soil and water
d. Plant and animal life
e. Air and water cycles





Answer: A

Air is predominantly composed of:

Air is predominantly composed of:



a. O2, CO2, and CH4
b. O2, N2, and CO2
c. O2 and N2
d. O2, CO2, and H2
e. O2 and CO2.





Answer: C

Components of an ecosystem are:

Components of an ecosystem are:




a. Independent of each other
b. Interconnected and Interdependent
c.Vertically Ordered
d. Unchangeable
e. Ranked form top to bottom





Answer: B

Complete the sentence as it relates to the cycle wherein ground water becomes surface water and eventually returns to ground water again. "Water is also ______ in this cycle through evaporation, biological processes, and by the water filtering through the soil.

Complete the sentence as it relates to the cycle wherein ground water becomes surface water and eventually returns to ground water again. "Water is also ______ in this cycle through evaporation, biological processes, and by the water filtering through the soil.





a. Purified
b. Oxidized
c. Changed
d. Neutralized
e. All of these





Answer: A

The main disadvantage of electric heating is the

The main disadvantage of electric heating is the




a) high maintenance cost
b) poor local temperature control
c) expensive installation
d) high operating cost
e) all of the above





Answer: D

Which of the following is not a gas-fired infrared heater?

Which of the following is not a gas-fired infrared heater?




a. Surface combustion heater
b. Low temperature catalytic heater
c. Quartz tube heater
d. Vented heater
e. Directly fired





Answer: C

One of the advantages of gas-fired infrared heating over other types of heating systems is:

One of the advantages of gas-fired infrared heating over other types of heating systems is:



a. It can heat a large volume enclosure with little fuel
b. It requires no fuel handling equipment
c. It eliminates the need for ventilation
d. It can provide effective spot heating
e. It can be used efficiently as the main heating source for a large building






Answer: D

Infrared heaters are used in:

Infrared heaters are used in:




a. Theaters
b. Lecture halls
c. Libraries
d. Skating rinks
e. Offices





Answer: D

The quartz lamp heating element will respond:

The quartz lamp heating element will respond:



a. Instantaneously
b. In a few seconds
c. In about one minute
d. In about thirty seconds
e. In about three minutes






Answer: B

A low temperature catalytic heater contains a layer of:

A low temperature catalytic heater contains a layer of:




a. Metal impregnated with a ceramic material
b. Wool fiber impregnated with a catalyst
c. A ceramic mat impregnated with a catalyst
d. Glass wool impregnated with a catalyst
e. Porous glass impregnated with a catalyst






Answer: D

Most gas-fired infrared heaters use the principle of:

Most gas-fired infrared heaters use the principle of:




a. Indirect heating of a gas
b. Heating a solid surface
c. Heating a liquid
d. Heating a porous material
e. Catalytic oxidation of a fuel at high combustion temperatures





Answer: B

Infrared heaters are usually mounted:

Infrared heaters are usually mounted:



a. Overhead
b. At shoulder height
c. In floors
d. Under windows
e. Over doors




Answer: A

One of the advantages of electric infrared heating by quartz lamp is:

One of the advantages of electric infrared heating by quartz lamp is:




a. It can heat a large area effectively
b. No ventilation is required
c. It can be used as the main heating source for a large building
d. It is not seriously affected by exposure to wind
e. It can be used in explosive atmospheres




Answer: D
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