POWER ENGINEERING 2B2 REVIEW 2
EXAM QUESTIONS AND ANSWERS.
VERIFIED 2026.
Question 1
In a single element feedwater control system the variable used for control is:
Select one:
a. steam pressure
b. steam flow
c. drum level
d. drum pressure
e. feedwater flow - ANS The correct answer is: drum level
Question 2
Self operated single element feedwater systems such as thermohydraulic systems:
Select one:
a. require an external source of power
b. consist of a feedwater regulating valve and pneumatic actuator
c. compensate for shrink and swell
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,d. close the feedwater valve on an initial increase in steaming rate
e. maintain a reasonably narrow proportional band - ANS The correct answer is: close the
feedwater valve on an initial increase in steaming rate
Question 3
What is the recommended maximum for the amount of water and sediment to be found in a
fuel oil?
Select one:
a. Greater than 0.5%
b. Greater than 1.0%
c. Greater than 1.5%
d. Greater than2.0%
e. Greater than 2.5% - ANS The correct answer is: Greater than 2.0%
Question 4
Hydrostatic head is:
Select one:
a. based on the expansion of liquids
b. independent of the shape of the vessel
c. dependent upon the volume of liquid
d. only expressed in terms of pressure
e. the mass of liquid above a reference line - ANS The correct answer is: independent of the
shape of the vessel
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,Question 5
Typically, what happens to the steam after passing through the steam turbine?
Select one:
a. It is sent to the process heat exchanger to support the process
b. It Is sent to the heat tracing system to support the heating system
c. It is returned to the LP Closed Heater to supply heat to the incoming feedwater
d. It is returned to the deaerator for reuse as feedwater
e. It is vented to atmosphere - ANS The correct answer is: It is returned to the deaerator for
reuse as feedwater
Question 6
During the complete combustion of 2 m3 of methane, the resulting products of combustion will
be:
Select one:
a. 2 m3 of CO2; 13.17 m3 of N2; 4 m3 of H2O
b. 1 m3 of CO2; 15.04 m3 of N2; 3 m3 of H2O
c. 2 m3 of CO2; 15.04 m3 of N2; 4 m3 of H2O
d. 2 m3 of CO2; 13.17 m3 of N2; 3 m3 of H2O
e. 1 m3 of CO2; 7.52 m3 of N2; 2 m3 of H2O - ANS The correct answer is: 2 m3 of CO2; 15.04
m3 of N2; 4 m3 of H2O
Question 7
When bellows or diaphragm meters are used to measure flow, large reservoirs for pipe
connections are not required because the fluid displacement in the meter body is:
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Select one:
a. adjustable
b. maximum
c. minimum
d. much smaller than in a float manometer
e. zero - ANS The correct answer is: much smaller than in a float manometer
Question 8
Which of these parts of a plant operation is started first and shut down last?
Select one:
a. Boiler
b. Pumps
c. Cooling system
d. Hydraulic systems
e. Process equipment - ANS The correct answer is: Cooling system
Question 9
The wires used in a thermocouple to measure temperatures up to 400 deg C may be:
Select one:
a. copper and constantan
b. copper and iron
c. copper and platinum
d. constantan and platinum and alumel
e. constantan and chrome - ANS The correct answer is: copper and constantan
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS.
VERIFIED 2026.
Question 1
In a single element feedwater control system the variable used for control is:
Select one:
a. steam pressure
b. steam flow
c. drum level
d. drum pressure
e. feedwater flow - ANS The correct answer is: drum level
Question 2
Self operated single element feedwater systems such as thermohydraulic systems:
Select one:
a. require an external source of power
b. consist of a feedwater regulating valve and pneumatic actuator
c. compensate for shrink and swell
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,d. close the feedwater valve on an initial increase in steaming rate
e. maintain a reasonably narrow proportional band - ANS The correct answer is: close the
feedwater valve on an initial increase in steaming rate
Question 3
What is the recommended maximum for the amount of water and sediment to be found in a
fuel oil?
Select one:
a. Greater than 0.5%
b. Greater than 1.0%
c. Greater than 1.5%
d. Greater than2.0%
e. Greater than 2.5% - ANS The correct answer is: Greater than 2.0%
Question 4
Hydrostatic head is:
Select one:
a. based on the expansion of liquids
b. independent of the shape of the vessel
c. dependent upon the volume of liquid
d. only expressed in terms of pressure
e. the mass of liquid above a reference line - ANS The correct answer is: independent of the
shape of the vessel
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,Question 5
Typically, what happens to the steam after passing through the steam turbine?
Select one:
a. It is sent to the process heat exchanger to support the process
b. It Is sent to the heat tracing system to support the heating system
c. It is returned to the LP Closed Heater to supply heat to the incoming feedwater
d. It is returned to the deaerator for reuse as feedwater
e. It is vented to atmosphere - ANS The correct answer is: It is returned to the deaerator for
reuse as feedwater
Question 6
During the complete combustion of 2 m3 of methane, the resulting products of combustion will
be:
Select one:
a. 2 m3 of CO2; 13.17 m3 of N2; 4 m3 of H2O
b. 1 m3 of CO2; 15.04 m3 of N2; 3 m3 of H2O
c. 2 m3 of CO2; 15.04 m3 of N2; 4 m3 of H2O
d. 2 m3 of CO2; 13.17 m3 of N2; 3 m3 of H2O
e. 1 m3 of CO2; 7.52 m3 of N2; 2 m3 of H2O - ANS The correct answer is: 2 m3 of CO2; 15.04
m3 of N2; 4 m3 of H2O
Question 7
When bellows or diaphragm meters are used to measure flow, large reservoirs for pipe
connections are not required because the fluid displacement in the meter body is:
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Select one:
a. adjustable
b. maximum
c. minimum
d. much smaller than in a float manometer
e. zero - ANS The correct answer is: much smaller than in a float manometer
Question 8
Which of these parts of a plant operation is started first and shut down last?
Select one:
a. Boiler
b. Pumps
c. Cooling system
d. Hydraulic systems
e. Process equipment - ANS The correct answer is: Cooling system
Question 9
The wires used in a thermocouple to measure temperatures up to 400 deg C may be:
Select one:
a. copper and constantan
b. copper and iron
c. copper and platinum
d. constantan and platinum and alumel
e. constantan and chrome - ANS The correct answer is: copper and constantan
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
