Power Engineering 3A2 Review Exam
Questions and Verified Answers
Question 1
When the plug is fully down, the bottom inlet is open. When the plug is fully raised,
the side inlet flow is open off.
a. True
b. False
Correct Answer
B
Question 2
Viscosity of fuel oil decreases as the temperature increases and becomes nearly
constant, above 120°C.
a. True
b. False
Correct Answer
A
Page 1 of 201
,Question 3
Calculate the heating value of a fuel with the following ultimate analysis:
Carbon 68.0% (0.68 kg/kg of fuel)
Hydrogen 4.0%
Sulphur 0.75 %
Ash 9.5%
Oxygen 18.5%
Nitrogen 2.0%
Using the formula: Calorific value =33.7 C + 144 (H - ) + 9.3 S
a.
35.15 MJ/kg
b.
41.55 MJ/kg
c.
16.65 MJ/kg
d.
25.43 MJ/kg
Correct Answer
D
Question 4
Describe the purpose of the voltmeter selector.
a.
This is to adjust the generator output voltage
b.
This is to adjust the generator excitation voltage
c.
This is used to check and verify the voltage on each phase of the generator.
d.
This is to adjust the generator output phase voltage
Correct Answer
C
Page 2 of 201
,Question 5
The most positive method to test a trap to ensure it is working is to touch the body of
the trap.
a. True
b. False
Correct Answer
B
Question 6
Diaphragms are made of any of materials resistant to the particular fluids being
transported. Choose four:
A. rubber
B. neoprene
C. cloth
D. stainless steel
E. polyethylene
F. tin foil
a.
B,C, D, E
b.
B, D, E
c.
A, B, C, E
d.
A, B, D, E
Correct Answer
D
Page 3 of 201
, Question 7
The measurement and control components of the system are distributed at locations
throughout the process area and perform two functions at each location:
1.
The measurement of analog and/or digital inputs
2.
Control globe valves
3.
View information transmitted from the processing area on an output device such as a
video monitor
4.
Generation of output signals to actuators that can change process conditions.
a.
1, 4
b.
1, 2, 4
c.
3, 4
d.
1, 2, 3, 4
Correct Answer
A
Page 4 of 201
Questions and Verified Answers
Question 1
When the plug is fully down, the bottom inlet is open. When the plug is fully raised,
the side inlet flow is open off.
a. True
b. False
Correct Answer
B
Question 2
Viscosity of fuel oil decreases as the temperature increases and becomes nearly
constant, above 120°C.
a. True
b. False
Correct Answer
A
Page 1 of 201
,Question 3
Calculate the heating value of a fuel with the following ultimate analysis:
Carbon 68.0% (0.68 kg/kg of fuel)
Hydrogen 4.0%
Sulphur 0.75 %
Ash 9.5%
Oxygen 18.5%
Nitrogen 2.0%
Using the formula: Calorific value =33.7 C + 144 (H - ) + 9.3 S
a.
35.15 MJ/kg
b.
41.55 MJ/kg
c.
16.65 MJ/kg
d.
25.43 MJ/kg
Correct Answer
D
Question 4
Describe the purpose of the voltmeter selector.
a.
This is to adjust the generator output voltage
b.
This is to adjust the generator excitation voltage
c.
This is used to check and verify the voltage on each phase of the generator.
d.
This is to adjust the generator output phase voltage
Correct Answer
C
Page 2 of 201
,Question 5
The most positive method to test a trap to ensure it is working is to touch the body of
the trap.
a. True
b. False
Correct Answer
B
Question 6
Diaphragms are made of any of materials resistant to the particular fluids being
transported. Choose four:
A. rubber
B. neoprene
C. cloth
D. stainless steel
E. polyethylene
F. tin foil
a.
B,C, D, E
b.
B, D, E
c.
A, B, C, E
d.
A, B, D, E
Correct Answer
D
Page 3 of 201
, Question 7
The measurement and control components of the system are distributed at locations
throughout the process area and perform two functions at each location:
1.
The measurement of analog and/or digital inputs
2.
Control globe valves
3.
View information transmitted from the processing area on an output device such as a
video monitor
4.
Generation of output signals to actuators that can change process conditions.
a.
1, 4
b.
1, 2, 4
c.
3, 4
d.
1, 2, 3, 4
Correct Answer
A
Page 4 of 201
