What is the purpose of a reverse return piping system?
A) To operate a two pipe system like a one pipe system
B) To keep the length of piping the same for each convector unit
C) To allow the flow direction to be reversed for cooling
D) To reduce the amount of piping required
B
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Some reaction units are applied by hydraulically operated piston assembly.
Answer the following statement true (T) or false (F)
While having a discussion, Technician A says that when analyzing exhaust readings CO and O2 should be nearly equal. Technician B says that CO, O2, and HC should be low. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Which of the following procedures would adjust the phase angle of one pump element in a port-helix metering injection pump?
A. shimming the fuel pump drive gear B. rotating the barrel C. shimming the barrel flange D. repositioning the control rack
What happens to the density of a marshmallow when squeeze it?
a. Increases b. Decreases c. Remains constant