Postal Automotive Technician Exam Questions With
Accurate Answers.
1. The vibration damper on an auto engine is fastened to the - accurate
answers-Crankshaft
2. Most small gas engines use a _________ ignition system - accurate answers-
Magneto
3. Icing occurs most often - accurate answers-On cool damp days
4. The function of the float in a carburetor is two - accurate answers-Close the
needle valve
5. To improve stability when cornering manufactures added a device to cars
called - accurate answers-Stabilizer bar
6. adjustment of the rods on a car will affect - accurate answers-Toe-in
7. A restriction in the exhaust system is indicated on a vacuum gauge by a -
accurate answers-gradual decrease in reading
8. Disc brakes on a car have a distinct advantage over conventional drum
brakes in that they - accurate answers-Fade Less when hot
9. In a diesel engine, the fuel is ignited by the - accurate answers-Heat of
compression
10. Engine timing is generally set by using a - accurate answers-Strobe light
11. If an engine is operating for long periods of time at part throttle opening
the - accurate answers-Spark plugs will become covered with carbon
12. Leaking intake valve guides will cause - accurate answers-Excessive oil
consumption
13. Flooding of a carburetor is generally caused by - accurate answers-A stuck
float needle valve
, 14. On many cars the fuel pump is combined with the - accurate answers-
vacuum pump
15. Corbon fouling of a spark plug is an indication of - accurate answers-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 - accurate answers-The
generator
17. An automobile alternator converts alternating current to direct current, by
means of - accurate answers-Silicon diodes
18. Hard starting is very often caused by - accurate answers-Improper choke
operation
19. A car with a history of burned points would probably indicate - accurate
answers-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 - accurate answers-.060
21. The amount of air fuel mixture taken into the cylinder on the intake Stroke
is a measure of the engines. - accurate answers-Volumetric efficiency
22. Welch plugs are installed on engines to provide - accurate answers-A
means of removing the sand after the engine is cast
23. The two cycle engine produces a power stroke with every_________
Of the crankshaft. - accurate answers-Revolution
24. Preignition may be caused by - accurate answers-Carbon deposits
25. The size of an outdoor motor propeller is always given in - accurate
answers-Diameter and pitch
26. Closed, crank case ventilation systems are used to - accurate answers-Aid
and prevention of air contamination
Accurate Answers.
1. The vibration damper on an auto engine is fastened to the - accurate
answers-Crankshaft
2. Most small gas engines use a _________ ignition system - accurate answers-
Magneto
3. Icing occurs most often - accurate answers-On cool damp days
4. The function of the float in a carburetor is two - accurate answers-Close the
needle valve
5. To improve stability when cornering manufactures added a device to cars
called - accurate answers-Stabilizer bar
6. adjustment of the rods on a car will affect - accurate answers-Toe-in
7. A restriction in the exhaust system is indicated on a vacuum gauge by a -
accurate answers-gradual decrease in reading
8. Disc brakes on a car have a distinct advantage over conventional drum
brakes in that they - accurate answers-Fade Less when hot
9. In a diesel engine, the fuel is ignited by the - accurate answers-Heat of
compression
10. Engine timing is generally set by using a - accurate answers-Strobe light
11. If an engine is operating for long periods of time at part throttle opening
the - accurate answers-Spark plugs will become covered with carbon
12. Leaking intake valve guides will cause - accurate answers-Excessive oil
consumption
13. Flooding of a carburetor is generally caused by - accurate answers-A stuck
float needle valve
, 14. On many cars the fuel pump is combined with the - accurate answers-
vacuum pump
15. Corbon fouling of a spark plug is an indication of - accurate answers-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 - accurate answers-The
generator
17. An automobile alternator converts alternating current to direct current, by
means of - accurate answers-Silicon diodes
18. Hard starting is very often caused by - accurate answers-Improper choke
operation
19. A car with a history of burned points would probably indicate - accurate
answers-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 - accurate answers-.060
21. The amount of air fuel mixture taken into the cylinder on the intake Stroke
is a measure of the engines. - accurate answers-Volumetric efficiency
22. Welch plugs are installed on engines to provide - accurate answers-A
means of removing the sand after the engine is cast
23. The two cycle engine produces a power stroke with every_________
Of the crankshaft. - accurate answers-Revolution
24. Preignition may be caused by - accurate answers-Carbon deposits
25. The size of an outdoor motor propeller is always given in - accurate
answers-Diameter and pitch
26. Closed, crank case ventilation systems are used to - accurate answers-Aid
and prevention of air contamination
