LESSON 3
PRACTICE EXERCISE
The following items will test your grasp of the material covered in this
lesson. There is only one correct answer for each item. When you complete
the exercise, check your answers with the answer key that follows. If you
answer any item incorrectly, study again that part of the lesson which
contains the portion involved.
SITUATION: The TWDS is designed so that the lead pumping station can be
operated in the manual or electric manual mode while the down-line boost
pumping stations can be operated in the manual, electric manual, or
automatic mode after the initial start-up.
1.
What is the manning required for the lead pumping station?
A.
The lead pumping station must be permanently manned.
B.
The lead pumping station requires only periodic monitoring.
C.
The lead pumping station operated in the electric mode requires
only periodic monitoring.
D.
The lead pumping station is not manned.
2.
How often, at a MINIMUM, must a crew service each of the boost pumping
stations while the TWDS is operating?
A.
One hour.
B.
Two hours.
C.
Three hours.
D.
Four hours.
SITUATION: Adjustments to spacing between pumping stations (due to elevation
change) assure that water pressure is maintained within optimum operational
range.
3.
Under normal conditions, at what pressure psig does the TWDS delivers
water to the suction port of each boost pumping station?
A.
10.
B.
20.
C.
30.
D.
40.
3-11
QM4912
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