POSTAL AUTOMOTIVE TECHNICIAN EXAM LATEST 2026 UPDATED
QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
In a Diesel Engine, the Fuel is Ignited by the - Answers -Heat of Compression
Engine Timing is Generally Set by Using a - Answers -Strobe Light
If an engine is operating at part throttle for long periods, what will happen to the spark plugs? -
Answers -Spark plugs will become covered with carbon
What will leaking intake valve guides cause? - Answers -Excessive oil consumption
What generally causes flooding of a carburetor? - Answers -A stuck float needle valve
On many cars, what is the fuel pump combined with? - Answers -Vacuum pump
What does carbon fouling of a spark plug indicate? - Answers -Too rich a mixture
1|Page
, If generator output is excessive even after disconnecting the F Terminal, where might the
trouble be? - Answers -The generator
How does an automobile alternator convert alternating current to direct current? - Answers -By
means of silicon diodes
What often causes hard starting? - Answers -Improper choke operation
A car with a history of burned points would likely indicate what problem with the voltage
regulator? - Answers -Too high setting
What is the maximum allowable oversize amount when reconditioning brake drums? - Answers
-.060 inches
21. Intake Stroke Air Fuel Mixture Measurement - Answers -Volumetric Efficiency
22. Purpose of Welch Plugs - Answers -Sand Removal After Casting
23. Two Cycle Engine Power Stroke Frequency - Answers -Revolution
2|Page
QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
In a Diesel Engine, the Fuel is Ignited by the - Answers -Heat of Compression
Engine Timing is Generally Set by Using a - Answers -Strobe Light
If an engine is operating at part throttle for long periods, what will happen to the spark plugs? -
Answers -Spark plugs will become covered with carbon
What will leaking intake valve guides cause? - Answers -Excessive oil consumption
What generally causes flooding of a carburetor? - Answers -A stuck float needle valve
On many cars, what is the fuel pump combined with? - Answers -Vacuum pump
What does carbon fouling of a spark plug indicate? - Answers -Too rich a mixture
1|Page
, If generator output is excessive even after disconnecting the F Terminal, where might the
trouble be? - Answers -The generator
How does an automobile alternator convert alternating current to direct current? - Answers -By
means of silicon diodes
What often causes hard starting? - Answers -Improper choke operation
A car with a history of burned points would likely indicate what problem with the voltage
regulator? - Answers -Too high setting
What is the maximum allowable oversize amount when reconditioning brake drums? - Answers
-.060 inches
21. Intake Stroke Air Fuel Mixture Measurement - Answers -Volumetric Efficiency
22. Purpose of Welch Plugs - Answers -Sand Removal After Casting
23. Two Cycle Engine Power Stroke Frequency - Answers -Revolution
2|Page
