1 |Page
Postal Automotive Technician Exam200 Questions And Correct Detailed Answers
Black Smokke Emission Cause - CORRECT ANSWER=Possible reasons for black smoke from
exhaust
26
Exhaust System Leak Check - CORRECT ANSWER=Methods to detect leaks in the exhaust system
20
White Smoke Emission Cause - CORRECT ANSWER=Possible reasons for white smoke from
exhaust
am
Transmission Slipping Cause - CORRECT ANSWER=Factors leading to slipping or delayed shifting
Transmission Solenoid Diagnosis - CORRECT ANSWER=Steps to diagnose issues with
transmission solenoid
Ex
Worn Differential Bearings Check - CORRECT ANSWER=Methods to check for worn bearings in the
s
differential
rt
Driveshaft Noises Cause - CORRECT ANSWER=Possible reasons for clunking or rattling driveshaft
pe
Transfer Case Malfunction Diagnosis - CORRECT ANSWER=Steps to diagnose issues with the
Ex
transfer case
1. The vibration damper on an auto engine is fastened to the - CORRECT ANSWER=Crankshaft
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2. Most small gas engines use a ignition system - CORRECT ANSWER=Magneto
3. Icing occurs most often - CORRECT ANSWER=On cool damp days
4. The function of the float in a carburetor is two - CORRECT ANSWER=Close the needle valve
2 6
5. To improve stability when cornering manufactures added a device to cars called - CORRECT
20
ANSWER=Stabilizer bar
6. adjustment of the rods on a car will affect - CORRECT ANSWER=Toe-in
am
7. A restriction in the exhaust system is indicated on a vacuum gauge by a - CORRECT
ANSWER=gradual decrease in reading
Ex
8. Disc brakes on a car have a distinct advantage over conventional drum brakes in that they -
CORRECT ANSWER=Fade Less when hot
ts
9. In a diesel engine, the fuel is ignited by the - CORRECT ANSWER=Heat of compression
r
pe
10. Engine timing is generally set by using a - CORRECT ANSWER=Strobe light
Ex
11. If an engine is operating for long periods of time at part throttle opening the - CORRECT
ANSWER=Spark plugs will become covered with carbon
12. Leaking intake valve guides will cause - CORRECT ANSWER=Excessive oil consumption
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13. Flooding of a carburetor is generally caused by - CORRECT ANSWER=A stuck float needle valve
14. On many cars the fuel pump is combined with the - CORRECT ANSWER=vacuum pump
15. Corbon fouling of a spark plug is an indication of - CORRECT ANSWER=To rich a mixture
26
16. If a test shows that generator output is excessive even after the F Terminal has been
20
disconnected the trouble may be traced to - CORRECT ANSWER=The generator
17. An automobile alternator converts alternating current to direct current, by means of -
CORRECT ANSWER=Silicon diodes
am
18. Hard starting is very often caused by - CORRECT ANSWER=Improper choke operation
Ex
19. A car with a history of burned points would probably indicate - CORRECT ANSWER=Too high
setting of the voltage regulator
s
rt
20. When it is necessary to recondition brake drums, the maximum allowable amount of the
oversize is inches - CORRECT ANSWER=.060
pe
21. The amount of air fuel mixture taken into the cylinder on the intake Stroke is a measure of the
engines. - CORRECT ANSWER=Volumetric efficiency
Ex
22. Welch plugs are installed on engines to provide - CORRECT ANSWER=A means of removing the
sand after the engine is cast
23. The two cycle engine produces a power stroke with every
Postal Automotive Technician Exam200 Questions And Correct Detailed Answers
Black Smokke Emission Cause - CORRECT ANSWER=Possible reasons for black smoke from
exhaust
26
Exhaust System Leak Check - CORRECT ANSWER=Methods to detect leaks in the exhaust system
20
White Smoke Emission Cause - CORRECT ANSWER=Possible reasons for white smoke from
exhaust
am
Transmission Slipping Cause - CORRECT ANSWER=Factors leading to slipping or delayed shifting
Transmission Solenoid Diagnosis - CORRECT ANSWER=Steps to diagnose issues with
transmission solenoid
Ex
Worn Differential Bearings Check - CORRECT ANSWER=Methods to check for worn bearings in the
s
differential
rt
Driveshaft Noises Cause - CORRECT ANSWER=Possible reasons for clunking or rattling driveshaft
pe
Transfer Case Malfunction Diagnosis - CORRECT ANSWER=Steps to diagnose issues with the
Ex
transfer case
1. The vibration damper on an auto engine is fastened to the - CORRECT ANSWER=Crankshaft
,2 | Page
2. Most small gas engines use a ignition system - CORRECT ANSWER=Magneto
3. Icing occurs most often - CORRECT ANSWER=On cool damp days
4. The function of the float in a carburetor is two - CORRECT ANSWER=Close the needle valve
2 6
5. To improve stability when cornering manufactures added a device to cars called - CORRECT
20
ANSWER=Stabilizer bar
6. adjustment of the rods on a car will affect - CORRECT ANSWER=Toe-in
am
7. A restriction in the exhaust system is indicated on a vacuum gauge by a - CORRECT
ANSWER=gradual decrease in reading
Ex
8. Disc brakes on a car have a distinct advantage over conventional drum brakes in that they -
CORRECT ANSWER=Fade Less when hot
ts
9. In a diesel engine, the fuel is ignited by the - CORRECT ANSWER=Heat of compression
r
pe
10. Engine timing is generally set by using a - CORRECT ANSWER=Strobe light
Ex
11. If an engine is operating for long periods of time at part throttle opening the - CORRECT
ANSWER=Spark plugs will become covered with carbon
12. Leaking intake valve guides will cause - CORRECT ANSWER=Excessive oil consumption
, 3 | Page
13. Flooding of a carburetor is generally caused by - CORRECT ANSWER=A stuck float needle valve
14. On many cars the fuel pump is combined with the - CORRECT ANSWER=vacuum pump
15. Corbon fouling of a spark plug is an indication of - CORRECT ANSWER=To rich a mixture
26
16. If a test shows that generator output is excessive even after the F Terminal has been
20
disconnected the trouble may be traced to - CORRECT ANSWER=The generator
17. An automobile alternator converts alternating current to direct current, by means of -
CORRECT ANSWER=Silicon diodes
am
18. Hard starting is very often caused by - CORRECT ANSWER=Improper choke operation
Ex
19. A car with a history of burned points would probably indicate - CORRECT ANSWER=Too high
setting of the voltage regulator
s
rt
20. When it is necessary to recondition brake drums, the maximum allowable amount of the
oversize is inches - CORRECT ANSWER=.060
pe
21. The amount of air fuel mixture taken into the cylinder on the intake Stroke is a measure of the
engines. - CORRECT ANSWER=Volumetric efficiency
Ex
22. Welch plugs are installed on engines to provide - CORRECT ANSWER=A means of removing the
sand after the engine is cast
23. The two cycle engine produces a power stroke with every
