The tap drill is always smaller than the tap, to leave sufficient material for the tap to produce ______ per cent of thread.

The tap drill is always smaller than the tap, to leave sufficient material for the tap to produce ______ per cent of thread.

a) 25
b) 30
c) 40
d) 50
e) 75








Answer: E

A taper tap is tapered from the end for approximately

A taper tap is tapered from the end for approximately

a) 2 threads
b) 3 threads
c) 4 threads
d) 6 threads
e) 8 threads









Answer: D

Micrometers are available in a variety of types and are used mainly for the measurement of

Micrometers are available in a variety of types and are used mainly for the measurement of

a) length, width, and thickness of the boiler house structure
b) vertical, perpendicular and parallel distances in assembly of power plant machines
c) outside, inside and depth dimensions of relatively small openings of objects
d) the density of the boiler flue gases for pollution control
e) dissolved solids in boiler water





Answer: C

A 300 mm tungsten hacksaw blade with a .78 mm teeth pitch is used to cut

A 300 mm tungsten hacksaw blade with a .78 mm teeth pitch is used to cut

a) a brass shaft 25 mm diameter
b) 38 mm x 39 mm hardwood
c) ceramic materials
d) PVC pipe
e) thin wall tubing





Answer: E

The actual movable range of a metric micrometer is typically:

The actual movable range of a metric micrometer is typically: 

a. 30 mm
b. 200 mm
c. 250 mm
d. 300 mm
e. 25 mm







Answer: E

A collet is

A collet is

a) a type of hole punch
b) used to make a square hole in a piece of plate
c) the moving part of a micrometer
d) a type of face spanner wrench
e) a holder for a thread die





Answer: E

A file which is always single cut is the

A file which is always single cut is the

a) hand file
b) mill file
c) warding file
d) knife file
e) pillar file





Answer: B

Relative to plant maintenance, a power engineer should have easy access to

Relative to plant maintenance, a power engineer should have easy access to

a) all ASME codes
b) the Chief Inspector
c) the Workers' Compensation Board Accident Prevention Regulations
d) all plant maintenance records and schedules
e) equipment suppliers




Answer: C

Taper, plug and bottoming are types of:

Taper, plug and bottoming are types of:

a. Wrenches
b. Dies
c. Files
d. Punches
e. Taps






Answer: E

A tap with the marking M4 would indicate a:

A tap with the marking M4 would indicate a:

a. High-strength alloy steel tap
b. Metric thread, 4 mm nominal diameter
c. Metric thread, 4 cm nominal diameter
d. Metric thread, 4 threads per mm
e. Tap with metallic threads




Answer: B

In order to check the trueness of a flat surface, one would use a:

In order to check the trueness of a flat surface, one would use a:

a. Vernier caliper
b. Hermaphrodite divider
c. Surface plate
d. Layout bench
e. Machinist's square






Answer: C

Copper sulphate may be used:

Copper sulphate may be used:

a. As a thread cutting fluid
b. For lubricating very fine threads such as those in a micrometer
c. Coating tools in order to prevent rusting
d. To free nuts which are corroded to bolts
e. As a marking or layout material








Answer: E

When storing a hacksaw:

When storing a hacksaw:

a. The blade should be removed
b. The saw should be stored in a protective sheath
c. Loosen the blade to take the strain off it
d. It should be hung rather than laid in with other tools
e. Flip the blade, so that the cutting surfaces are not exposed to damage






Answer: C

The point of a properly ground drill bit should be:

The point of a properly ground drill bit should be:

a. 35°
b. 78°
c. 45°
d. 118°
e. 135°






Answer: D

With respect to tools, flutes are found on:

With respect to tools, flutes are found on:

a. The inside edges of thread dies
b. The body of a twist drill bit
c. The point of a twist drill bit
d. The taper of a twist drill bit
e. Scribers






Answer: B

A screwdriver having a square tip is known as:

A screwdriver having a square tip is known as:

a. A slot
b. An Allen
c. A Robertson
d. A Phillips
e. A Jacobson






Answer: C

A dressing tool is used to:

A dressing tool is used to:

a. Square the edges of a grinding wheel
b. Clean the measuring contact surfaces of a micrometer
c. Clean the grooves of a file
d. Fit a new handle into a hammer head
e. Re-set the teeth of a saw







Answer: A

The _____ of the completed job depends largely on the care taken during laying out.

The _____ of the completed job depends largely on the care taken during laying out.

a. Time
b. Accuracy
c. Cost
d. Price
e. Size








Answer: B

Who is responsible for providing safe working conditions in the plant?

Who is responsible for providing safe working conditions in the plant?

a. Management
b. The Boilers Branch
c. Worker's Compensation Occupational Health and Safety
d. The ASME Code
e. The Union







Answer: A

A ball peen hammer is sometimes referred to as a:

A ball peen hammer is sometimes referred to as a:

a. Carpenter's hammer
b. Machinist's hammer
c. Mechanic's hammer
d. Millwright's hammer
e. Spherical mallet







Answer: B