Power Engineering MCQ: Power Engineering Chapter 60

A. The steam space is indicated in green while the water space is red
B. The steam space is indicated in red while the water space is green
C. The steam space is indicated in yellow while the water space is blue
D. The steam space is indicated in blue while the water space is yellow

Answer: B

Another name for circular glasses

A. Double bullseye
B. Webloc glasses
C. Bullseye
D. None of the above

Answer: A

Transparent and reflex gauge glass is suitable for temperatures exceeding _ and pressures up to __

A. 220C and 60 000 kPa
B. 240C and 65 000 kPa
C. 200C and 50 000 kPa
D. 250C and 70 000 kPa
E. 210C and 55 000 kPa

Answer: D

Another name for Armored-type gauge glass is?

A. Flat gauge glass
B. Reflex gauge glass
C. Transparent gauge glass
D. Bicolor gauge glass
E. None of the above

Answer: A

Gauge glasses are susceptible to corrosion caused by _ and _ at higher temperatures.

A. Acid and silica
B. Alkalinity and sulphur
C. Alkalinity and silica
D. Acid and sulphur
E. Carbon monoxide and Nitrogen oxides

Answer: C

Which code provides different measurements, depending on boiler shell diameter?

A. ASME Section 1, PFT-47.1
B. ASME Section 1, PG-60.1
C. ASME Section 1, PFT-47.2
D. ASME Section 1, PG-60.2
E. A and C

Answer: E

Which code states "all boilers having a fixed water level, the lowest visible water level in a gauge glass shall be at least 2 in. (50mm)....."

A. ASME Section 1, PFT-47.1
B. ASME Section 1, PG-60.1
C. ASME Section 1, PFT-47.2
D. ASME Section 1, PG-60.2
E. ASME Section 1, PG-60.3

Answer: B

What type of attachment of gauge glass is commonly used on firetube boilers?

A. Water gauge with quick closing valves
B. Bicolour multiport gauge glass
C. Igema remote water-level indicator
D. Direct connected gauge glass
E. All of the above

Answer: D

If a gauge glass leaks

A. Isolating valves should be open and drain closed
B. Isolating valves should be closed and drain open
C. Isolating valves should be open and drain closed
D. Isolating valves should be closed and drain closed
E. None of the above

Answer: B

Tubular gauge glass should not exceed?

A. 700mm
B. 800mm
C. 750mm
D. 850mm
E. 650mm

Answer: C

What is a disadvantage of the safety shutoff gauge valve?

A. Requires more maintenance
B. Cost is high
C. Installation
D. None of the above

Answer: A

If a boiler is not continuously supervised, this device maybe installed to prevent water from leaving the boiler should the gauge glass break

A. Brass swing check valve
B. A ball float linked to a mercury shut off switch
C. A safety shutoff gauge valve
D. None of the above

Answer: C

What is the simplest and least costly gauge glass developed?

A. Armored-type gauge glass
B. Bicolor gauge glass
C. Tubular gauge glass
D. Reflex gauge glass
E. Transparent gauge glass

Answer: C

What is the simplest techniques for indicating a liquid level?

A. Transparent ports
B. Tubular gauge glass
C. Armored-type gauge glass
D. Bicolor gauge glass
E. None of the above

Answer: A

Which one is NOT a indirect way to measure the liquid level?

A. Ultrasonic level gauges
B. Differential pressure level meters
C. Electrical capacitance level gauges
D. Bubbler systems
E. Gauge glass

Answer: E

What is the main advantage of the Igema remote water level indicator?

The coloured screens on a remote water level indicator illuminate the inside of the indicator with ___ representing the water level and ___ for steam.

The remote water level indicator operating element is?

The water column and gauge glass should be blown down

Biocolor gauge glass can be used to indicate the drum level to a person on the operating floor by?

In a biocolor gauge glass

Another name for circular glasses

Transparent and reflex gauge glass is suitable for temperatures exceeding ___ and pressures up to ____

Another name for Armored-type gauge glass is?

Gauge glasses are susceptible to corrosion caused by ___ and ___ at higher temperatures.

Which code provides different measurements, depending on boiler shell diameter?

Which code states "all boilers having a fixed water level, the lowest visible water level in a gauge glass shall be at least 2 in. (50mm)....."

What type of attachment of gauge glass is commonly used on firetube boilers?

If a gauge glass leaks

Tubular gauge glass should not exceed?

What is a disadvantage of the safety shutoff gauge valve?

If a boiler is not continuously supervised, this device maybe installed to prevent water from leaving the boiler should the gauge glass break

What is the simplest and least costly gauge glass developed?

What is the simplest techniques for indicating a liquid level?

Which one is NOT a indirect way to measure the liquid level?

The coloured screens on a remote water level indicator illuminate the inside of the indicator with _ representing the water level and _ for steam.

Transparent and reflex gauge glass is suitable for temperatures exceeding _ and pressures up to __

Gauge glasses are susceptible to corrosion caused by _ and _ at higher temperatures.