Postal Automotive Technician Exam
944 Questions with verified answers
1. The vibration damper on an auto engine is fastened to the - correct answer ✔✔Crankshaft
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
5. To improve stability when cornering manufactures added a device to cars called - correct
answer ✔✔Stabilizer bar
6. adjustment of the rods on a car will affect - correct answer ✔✔Toe-in
7. A restriction in the exhaust system is indicated on a vacuum gauge by a - correct answer
✔✔gradual decrease in reading
8. Disc brakes on a car have a distinct advantage over conventional drum brakes in that they -
correct answer ✔✔Fade Less when hot
9. In a diesel engine, the fuel is ignited by the - correct answer ✔✔Heat of compression
10. Engine timing is generally set by using a - correct answer ✔✔Strobe light
, 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
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
16. If a test shows that generator output is excessive even after the F Terminal has been
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
18. Hard starting is very often caused by - correct answer ✔✔Improper choke operation
19. A car with a history of burned points would probably indicate - correct answer ✔✔Too high
setting of the voltage regulator
20. When it is necessary to recondition brake drums, the maximum allowable amount of the
oversize is__________ inches - correct answer ✔✔.060
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
944 Questions with verified answers
1. The vibration damper on an auto engine is fastened to the - correct answer ✔✔Crankshaft
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
5. To improve stability when cornering manufactures added a device to cars called - correct
answer ✔✔Stabilizer bar
6. adjustment of the rods on a car will affect - correct answer ✔✔Toe-in
7. A restriction in the exhaust system is indicated on a vacuum gauge by a - correct answer
✔✔gradual decrease in reading
8. Disc brakes on a car have a distinct advantage over conventional drum brakes in that they -
correct answer ✔✔Fade Less when hot
9. In a diesel engine, the fuel is ignited by the - correct answer ✔✔Heat of compression
10. Engine timing is generally set by using a - correct answer ✔✔Strobe light
, 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
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
16. If a test shows that generator output is excessive even after the F Terminal has been
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
18. Hard starting is very often caused by - correct answer ✔✔Improper choke operation
19. A car with a history of burned points would probably indicate - correct answer ✔✔Too high
setting of the voltage regulator
20. When it is necessary to recondition brake drums, the maximum allowable amount of the
oversize is__________ inches - correct answer ✔✔.060
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
