A vehicle makes a "chirp, chirp" noise when backing up. This can be caused by a(n) ________
A) Worn transmission pilot bearing B) Aggressive tire tread design
C) Bad wheel bearing D) Bad U-joint
D
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On which of the four strokes of the diesel cycle, is cylinder pressure at its highest in a running engine?
A. intake B. compression C. power D. exhaust
Technician A says that an electric parking brake (EPB) uses an electric motor to pull on the parking brake cable. Technician B says that some electric parking brake systems use a computer-controlled motor attached to the caliper. Which technician is correct?
a. Technician A only b. Technician B only c. Both Technicians A and B d. Neither Technician A nor B
Friction is the resistance to motion created when two surfaces move against each other.
Answer the following statement true (T) or false (F)
Compressor cylinder unloading reduces the capacity of a reciprocating compressor by:
A) Flooding the unloaded cylinders with oil. B) Blocking off the discharge port in the unloaded heads. C) Disconnecting the pistons in the unloaded cylinders. D) Making the valves in the head inoperative.