Power Engineering 3A2 - Review 2 questions with
accurate answers
_____ applies to the boiler proper and the boiler "external piping",
including super heaters, economizers and other pressure parts connected
directly to the boiler.
Select one:
A. ASME Section I
B. CSA-B51
C. CSA-B52
D. Alberta Pressure Equipment Safety Regulations
E. ASME B31.1 Ans✓✓✓ A
_____ control operates to prevent errors from occurring in the first
place.
Select one:
A. Feedback
B. Feed-forward
C. Proportional
D. Proportional plus reset
E. Proportional plus reset plus derivative Ans✓✓✓ B
_____ sets the rules for Pressure or Process Piping in the rest of the plant
that is not covered in B31.1.
Select one:
,A. ASME Section 1
B. ASTM
C. CSA
D. ANSI
E. ASME B31.3 Ans✓✓✓ E
"Valve trim" refers to the valve _____ and _____.
Select one:
A. Wheel, stem
B. Bonnet, packing
C. Disc, seat
D. Inlet, outlet
E. Packing, gland Ans✓✓✓ C
3A2 01 04 Most, if not all Jurisdictions, require boilers and pressure
vessels to be inspected during fabrication by an inspector holding a:
Select one:
A. National Board commission.
B. Degree in Mechanical Engineering.
C. First Class Engineers Certificate.
D. Second Class Engineers Certificate.
E. Third Class Engineers Certificate. Ans✓✓✓ A
,480 V emergency switching could be described as:
Select one:
A. In the event that the incoming 4.16 kV power should be lost critical
users are supplied with 4.16 kV emergency power from the 900 kW
natural gas turbine generator.
B. In the event that the incoming utility power should be lost, critical
users are supplied with 480V emergency power from the 250 kW diesel
generator.
C. In the event that the incoming 600 V power should be lost critical
users are supplied with 4.16 kV emergency power from the 900 kW
natural gas turbine generator.
D. In the event that the incoming 600 V power should be lost critical
users are supplied with 600 V emergency power from the 900 kW
natural gas turbine generator.
E. In the event that the incoming utility power should be lost, critical
users are supplied with 4.16 kV emergency power from the 250 kW
diesel generator. The second automatic transfer switch, will switch over
to this gene Ans✓✓✓ B
A 3-ohm resistor has a power rating of 1.5 watts. The maximum loading
is:
Select one:
A. 0.05 amps.
B. 0.707 amps.
C. 4.5 amps.
D. 20 amps.
E. 22 amps. Ans✓✓✓ B
, A boiler drum is made of SA-515-70 steel and has a ligament efficiency
of 0.66. If the steam temperature is 280°C and the inside diameter of the
drum is 1.6 m, what will the maximum operating pressure be, in kPa?
Use S = 136 MPa and t = 68.5 mm.
Select one:
A. 2500 kPa.
B. 6500 kPa.
C. 7310 kPa.
D. 5200 kPa.
E. 5800 kPa. Ans✓✓✓ C
A Bourdon tube has an oval cross section, which is often shaped in the
form of a "C", having an arc span of about:
Select one:
A. 90 degrees.
B. 120 degrees.
C. 180 degrees.
D. 270 degrees.
E. 360 degrees. Ans✓✓✓ D
A coil has an inductance 20 mH. The inductive reactance is 100 Ω. Find
the line frequency.
Select one:
A. 568 Hz.
accurate answers
_____ applies to the boiler proper and the boiler "external piping",
including super heaters, economizers and other pressure parts connected
directly to the boiler.
Select one:
A. ASME Section I
B. CSA-B51
C. CSA-B52
D. Alberta Pressure Equipment Safety Regulations
E. ASME B31.1 Ans✓✓✓ A
_____ control operates to prevent errors from occurring in the first
place.
Select one:
A. Feedback
B. Feed-forward
C. Proportional
D. Proportional plus reset
E. Proportional plus reset plus derivative Ans✓✓✓ B
_____ sets the rules for Pressure or Process Piping in the rest of the plant
that is not covered in B31.1.
Select one:
,A. ASME Section 1
B. ASTM
C. CSA
D. ANSI
E. ASME B31.3 Ans✓✓✓ E
"Valve trim" refers to the valve _____ and _____.
Select one:
A. Wheel, stem
B. Bonnet, packing
C. Disc, seat
D. Inlet, outlet
E. Packing, gland Ans✓✓✓ C
3A2 01 04 Most, if not all Jurisdictions, require boilers and pressure
vessels to be inspected during fabrication by an inspector holding a:
Select one:
A. National Board commission.
B. Degree in Mechanical Engineering.
C. First Class Engineers Certificate.
D. Second Class Engineers Certificate.
E. Third Class Engineers Certificate. Ans✓✓✓ A
,480 V emergency switching could be described as:
Select one:
A. In the event that the incoming 4.16 kV power should be lost critical
users are supplied with 4.16 kV emergency power from the 900 kW
natural gas turbine generator.
B. In the event that the incoming utility power should be lost, critical
users are supplied with 480V emergency power from the 250 kW diesel
generator.
C. In the event that the incoming 600 V power should be lost critical
users are supplied with 4.16 kV emergency power from the 900 kW
natural gas turbine generator.
D. In the event that the incoming 600 V power should be lost critical
users are supplied with 600 V emergency power from the 900 kW
natural gas turbine generator.
E. In the event that the incoming utility power should be lost, critical
users are supplied with 4.16 kV emergency power from the 250 kW
diesel generator. The second automatic transfer switch, will switch over
to this gene Ans✓✓✓ B
A 3-ohm resistor has a power rating of 1.5 watts. The maximum loading
is:
Select one:
A. 0.05 amps.
B. 0.707 amps.
C. 4.5 amps.
D. 20 amps.
E. 22 amps. Ans✓✓✓ B
, A boiler drum is made of SA-515-70 steel and has a ligament efficiency
of 0.66. If the steam temperature is 280°C and the inside diameter of the
drum is 1.6 m, what will the maximum operating pressure be, in kPa?
Use S = 136 MPa and t = 68.5 mm.
Select one:
A. 2500 kPa.
B. 6500 kPa.
C. 7310 kPa.
D. 5200 kPa.
E. 5800 kPa. Ans✓✓✓ C
A Bourdon tube has an oval cross section, which is often shaped in the
form of a "C", having an arc span of about:
Select one:
A. 90 degrees.
B. 120 degrees.
C. 180 degrees.
D. 270 degrees.
E. 360 degrees. Ans✓✓✓ D
A coil has an inductance 20 mH. The inductive reactance is 100 Ω. Find
the line frequency.
Select one:
A. 568 Hz.
