Power Engineering 4A - Test Review 4 questions with
accurate answers
"Transpiration" is the process where:
Select one:
a. dissolved oxygen is expelled from water
b. water vapour goes through a phase change
c. plants release water
d. animals inhale oxygen Ans✓✓✓ C
A bar is pivoted on the right end and a force is applied upwards on the
left end. The rotation of the bar will be:
Select one:
a. Downward
b. Upward
c. Clockwise
d. Counter-clockwise Ans✓✓✓ C
A body moves from Point A to Point B in a semicircular path. If the
radius of the semicircle is 2 m, calculate the displacement from Point A
to Point B.
Select one:
a. 8 m
b. 6 m
c. 2 m
,d. 4 m Ans✓✓✓ D
A car accelerates uniformly from rest to 6.1 m/s in 40 seconds. It
continues at this velocity for an additional 60 seconds. Then it
decelerates to a stop in 10 seconds. If the car traveled in a straight line
during this time, determine the final distance from its original position.
Select one:
a. 122 m
b. 518.5 m
c. 9.15 m
d. 671 m Ans✓✓✓ B
A car has an initial velocity of 25km/h and in 84 seconds it accelerates
to 110km/h. How far did it travel while accelerating?
Select one:
a. 757 m
b. 575 m
c. 1575 m
d. 2575 m Ans✓✓✓ C
A control loop controller:
Select one:
a. Constantly compares a process variable to the set point
b. Eliminates all setpoint deviation
,c. Measures the manipulated variable value, eliminating the need of a
primary element
d. Sends a signal to a primary element Ans✓✓✓ A
A controller is a device that primarily:
Select one:
a. Is a logic device capable of making decisions
b. Records a system's performance
c. Tries to maintain a set point
d. Sends or transmits a positive rather than negative signal Ans✓✓✓ C
A device which will cause a visible light signal to become an instrument
analog signal is the:
Select one:
a. Current-to-pneumatic transducer
b. Controller
c. PE switch
d. Photoelectric transducer Ans✓✓✓ D
A disadvantage of an electric boiler is that it:
Select one:
a. Is very expensive to operate
b. Is inefficient
c. Requires alternating current
, d. Has no chimney Ans✓✓✓ A
A discrete input is not:
Select one:
a. limit switch
b. temperature sensor
c. push button
d. proximity switch Ans✓✓✓ B
A fire in which of the following constitutes a Class "C" fire:
Select one:
a. Coal bunker
b. Fuel tank
c. Lumber pile
d. Electrical panel Ans✓✓✓ D
A good rule of thumb is to install pipe hangers at ___________ intervals
along a pipe.
Select one:
a. 5 m
b. 3 m
c. 1.5 m
d. 1 m Ans✓✓✓ B
accurate answers
"Transpiration" is the process where:
Select one:
a. dissolved oxygen is expelled from water
b. water vapour goes through a phase change
c. plants release water
d. animals inhale oxygen Ans✓✓✓ C
A bar is pivoted on the right end and a force is applied upwards on the
left end. The rotation of the bar will be:
Select one:
a. Downward
b. Upward
c. Clockwise
d. Counter-clockwise Ans✓✓✓ C
A body moves from Point A to Point B in a semicircular path. If the
radius of the semicircle is 2 m, calculate the displacement from Point A
to Point B.
Select one:
a. 8 m
b. 6 m
c. 2 m
,d. 4 m Ans✓✓✓ D
A car accelerates uniformly from rest to 6.1 m/s in 40 seconds. It
continues at this velocity for an additional 60 seconds. Then it
decelerates to a stop in 10 seconds. If the car traveled in a straight line
during this time, determine the final distance from its original position.
Select one:
a. 122 m
b. 518.5 m
c. 9.15 m
d. 671 m Ans✓✓✓ B
A car has an initial velocity of 25km/h and in 84 seconds it accelerates
to 110km/h. How far did it travel while accelerating?
Select one:
a. 757 m
b. 575 m
c. 1575 m
d. 2575 m Ans✓✓✓ C
A control loop controller:
Select one:
a. Constantly compares a process variable to the set point
b. Eliminates all setpoint deviation
,c. Measures the manipulated variable value, eliminating the need of a
primary element
d. Sends a signal to a primary element Ans✓✓✓ A
A controller is a device that primarily:
Select one:
a. Is a logic device capable of making decisions
b. Records a system's performance
c. Tries to maintain a set point
d. Sends or transmits a positive rather than negative signal Ans✓✓✓ C
A device which will cause a visible light signal to become an instrument
analog signal is the:
Select one:
a. Current-to-pneumatic transducer
b. Controller
c. PE switch
d. Photoelectric transducer Ans✓✓✓ D
A disadvantage of an electric boiler is that it:
Select one:
a. Is very expensive to operate
b. Is inefficient
c. Requires alternating current
, d. Has no chimney Ans✓✓✓ A
A discrete input is not:
Select one:
a. limit switch
b. temperature sensor
c. push button
d. proximity switch Ans✓✓✓ B
A fire in which of the following constitutes a Class "C" fire:
Select one:
a. Coal bunker
b. Fuel tank
c. Lumber pile
d. Electrical panel Ans✓✓✓ D
A good rule of thumb is to install pipe hangers at ___________ intervals
along a pipe.
Select one:
a. 5 m
b. 3 m
c. 1.5 m
d. 1 m Ans✓✓✓ B
