Postal Automotive Technician Verified Multiple Choice
and Conceptual Actual Emended Exam Questions
With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update
1. In a diesel engine, the fuel is ignited by the - ANSWER Heat of
compression
2. Engine timing is generally set by using a - ANSWER Strobe light
3. If an engine is operating for long periods of time at part throttle opening
the - ANSWER Spark plugs will become covered with carbon
4. Leaking intake valve guides will cause - ANSWER Excessive oil
consumption
5. Flooding of a carburetor is generally caused by - ANSWER A stuck float
needle valve
6. On many cars the fuel pump is combined with the - ANSWER vacuum
pump
7. Corbon fouling of a spark plug is an indication of - ANSWER To rich a
mixture
,8. If a test shows that generator output is excessive even after the F Terminal
has been disconnected the trouble may be traced to - ANSWER The
generator
9. An automobile alternator converts alternating current to direct current, by
means of - ANSWER Silicon diodes
10.Hard starting is very often caused by - ANSWER Improper choke
operation
11.A car with a history of burned points would probably indicate - ANSWER
Too high setting of the voltage regulator
12.When it is necessary to recondition brake drums, the maximum allowable
amount of the oversize is__________ inches - ANSWER .060
13.The amount of air fuel mixture taken into the cylinder on the intake Stroke
is a measure of the engines. - ANSWER Volumetric efficiency
14.Welch plugs are installed on engines to provide - ANSWER A means of
removing the sand after the engine is cast
15.The two cycle engine produces a power stroke with every_________
16.Of the crankshaft. - ANSWER Revolution
, 17.Preignition may be caused by - ANSWER Carbon deposits
18.The size of an outdoor motor propeller is always given in - ANSWER
Diameter and pitch
19.Closed, crank case ventilation systems are used to - ANSWER Aid and
prevention of air contamination
20.The angular motion about the vertical axis of an aircraft or spacecraft, is
known as - ANSWER Yaw
21.The carburetor circuit that maintains a constant level of fuel in the float
bowl is the_______
Circuit - ANSWER Float
22.A jet engine combustion chamber liner is cool by - ANSWER Air streams
23.Regenerative gas turbine engines have been successfully develop for use on
- ANSWER Automobiles
24.Power impulses from the engine are smoothed out by the - ANSWER
Fly wheel
, 25.The service ratings MS, SE, SG refers to - ANSWER Motor oils
26.The intake and exhaust openings on a two stroke cycle engine are known as
- ANSWER Ports
27.Ball joint type front suspension eliminates - ANSWER The conventional
kingpin
28.Gasoline cannot be used in a diesel because the - ANSWER Gasoline
will start to burn long before the piston reach the top of the stroke
29.On the compression stroke, diesel engine compresses - ANSWER Air
30.The idle and low speed circuit in a carburetor is in operative - ANSWER
Speed over 20 mph
31.A generator should be polarized to prevent damage whenever - ANSWER
The generator or regulator wires have been disconnected
32.Turboprop engine is a more efficient than turbo jet engines for aircraft
flying - ANSWER Short trips
33.A blower or pump which forces air into cylinders at higher than atmospheric
pressure is known as - ANSWER Supercharger
and Conceptual Actual Emended Exam Questions
With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update
1. In a diesel engine, the fuel is ignited by the - ANSWER Heat of
compression
2. Engine timing is generally set by using a - ANSWER Strobe light
3. If an engine is operating for long periods of time at part throttle opening
the - ANSWER Spark plugs will become covered with carbon
4. Leaking intake valve guides will cause - ANSWER Excessive oil
consumption
5. Flooding of a carburetor is generally caused by - ANSWER A stuck float
needle valve
6. On many cars the fuel pump is combined with the - ANSWER vacuum
pump
7. Corbon fouling of a spark plug is an indication of - ANSWER To rich a
mixture
,8. If a test shows that generator output is excessive even after the F Terminal
has been disconnected the trouble may be traced to - ANSWER The
generator
9. An automobile alternator converts alternating current to direct current, by
means of - ANSWER Silicon diodes
10.Hard starting is very often caused by - ANSWER Improper choke
operation
11.A car with a history of burned points would probably indicate - ANSWER
Too high setting of the voltage regulator
12.When it is necessary to recondition brake drums, the maximum allowable
amount of the oversize is__________ inches - ANSWER .060
13.The amount of air fuel mixture taken into the cylinder on the intake Stroke
is a measure of the engines. - ANSWER Volumetric efficiency
14.Welch plugs are installed on engines to provide - ANSWER A means of
removing the sand after the engine is cast
15.The two cycle engine produces a power stroke with every_________
16.Of the crankshaft. - ANSWER Revolution
, 17.Preignition may be caused by - ANSWER Carbon deposits
18.The size of an outdoor motor propeller is always given in - ANSWER
Diameter and pitch
19.Closed, crank case ventilation systems are used to - ANSWER Aid and
prevention of air contamination
20.The angular motion about the vertical axis of an aircraft or spacecraft, is
known as - ANSWER Yaw
21.The carburetor circuit that maintains a constant level of fuel in the float
bowl is the_______
Circuit - ANSWER Float
22.A jet engine combustion chamber liner is cool by - ANSWER Air streams
23.Regenerative gas turbine engines have been successfully develop for use on
- ANSWER Automobiles
24.Power impulses from the engine are smoothed out by the - ANSWER
Fly wheel
, 25.The service ratings MS, SE, SG refers to - ANSWER Motor oils
26.The intake and exhaust openings on a two stroke cycle engine are known as
- ANSWER Ports
27.Ball joint type front suspension eliminates - ANSWER The conventional
kingpin
28.Gasoline cannot be used in a diesel because the - ANSWER Gasoline
will start to burn long before the piston reach the top of the stroke
29.On the compression stroke, diesel engine compresses - ANSWER Air
30.The idle and low speed circuit in a carburetor is in operative - ANSWER
Speed over 20 mph
31.A generator should be polarized to prevent damage whenever - ANSWER
The generator or regulator wires have been disconnected
32.Turboprop engine is a more efficient than turbo jet engines for aircraft
flying - ANSWER Short trips
33.A blower or pump which forces air into cylinders at higher than atmospheric
pressure is known as - ANSWER Supercharger
