USPS Exam 943 10 Questions And Answers Set 03
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Terms in this set
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1. Which of the following conditions will result when a brake drum is out of round?
A. a low pedal
B. a spongy pedal
C. a high pedal
D. a pulsating pedal
E. a hard pedal
A. a low pedal
B. a spongy pedal
C. a high pedal
D. a pulsating pedal
E. a hard pedal
D. a pulsating pedal
Which one of the following emission control systems is common to all cars and light trucks made at the present time in the U.S.?
A. AIR - Air Injection Reaction
B. PCV - Positive Crankcase Ventilation
C. CCC - Computer Controlled Combustion
D. II - Improved Ignition
E. ACS - Air Cleaning System
A. AIR - Air Injection Reaction
B. PCV - Positive Crankcase Ventilation
C. CCC - Computer Controlled Combustion
D. II - Improved Ignition
E. ACS - Air Cleaning System
B. PCV - Positive Crankcase Ventilation
3. In an automatic transmission, which of the following is part of a planetary gear set?
A. impeller
B. modulator
C. pinion
D. alternator
E. rotor
A. impeller
B. modulator
C. pinion
D. alternator
E. rotor
C. pinion
4. During a cylinder leakage test, what is indicated when air escapes through the radiator from two adjacent cylinders?
A. worn cylinder walls
B. defective cylinder head gasket
C. leaking piston rings
D. worn exhaust valves
E. burnt intake valves
A. worn cylinder walls
B. defective cylinder head gasket
C. leaking piston rings
D. worn exhaust valves
E. burnt intake valves
B. defective cylinder head gasket
5. Which of the following would cause a soft, spongy brake pedal?
A. air in the hydraulic system
B. bent caliper retainer
C. warped rotors
D. out of round drum
E. loose lug nut
A. air in the hydraulic system
B. bent caliper retainer
C. warped rotors
D. out of round drum
E. loose lug nut
A. air in the hydraulic system
6. A PCV valve is controlled by which of the following?
A. valve lifter
B. throttle cable
C. engine vacuum
D. rocker arm
E. exhaust pressure
A. valve lifter
B. throttle cable
C. engine vacuum
D. rocker arm
E. exhaust pressure
C. engine vacuum
7. What is wrong during a compression test, if a low compression reading goes up after a small amount of oil is squirted into a spark plug hole?
A. defective rocker arm
B. worn lifter
C. cracked cylinder head
D. worn piston rings
E. burnt intake valve
A. defective rocker arm
B. worn lifter
C. cracked cylinder head
D. worn piston rings
E. burnt intake valve
D. worn piston rings
8. A vacuum gauge connected to a well tuned engine should show a steady reading between which of the following during engine idle?
A) 23" - 27"
B) 4" - 8"
C) 14" - 22"
D) 32" - 38"
E) 28" - 32"
A) 23" - 27"
B) 4" - 8"
C) 14" - 22"
D) 32" - 38"
E) 28" - 32"
C) 14" - 22"
9. The front band of an automatic transmission is applied through which of the following?
A. servo lever
B. rear clutch
C.flywheel
D. pinion gear
E. shaft bearing
A. servo lever
B. rear clutch
C.flywheel
D. pinion gear
E. shaft bearing
A. servo lever
10. Which of the following is used to adjust the up and down clearance between an I-beam or solid front axle and the steering knuckle?
A. idler arm
B. truck arm
C. thrust bearing
D. king pin
E. spacer shims
A. idler arm
B. truck arm
C. thrust bearing
D. king pin
E. spacer shims
E. spacer shims