POSTAL AUTOMOTIVE TECHNICIAN
EXAMINATION TEST 2026 QUESTIONS WITH
ANSWERS GRADED A+
◉ Most Small Gas Engines Use a _________ Ignition System. Answer:
Magneto
◉ Icing Occurs Most Often. Answer: On Cool Damp Days
◉ The Function of the Float in a Carburetor is to. Answer: Close the
Needle Valve
◉ To Improve Stability When Cornering, Manufacturers Added a
Device to Cars Called. Answer: Stabilizer Bar
◉ Adjustment of the Rods on a Car Will Affect. Answer: Toe-in
◉ A Restriction in the Exhaust System is Indicated on a Vacuum Gauge
by a. Answer: Gradual Decrease in Reading
◉ Disc Brakes on a Car Have a Distinct Advantage Over Conventional
Drum Brakes in That They. Answer: Fade Less When Hot
, ◉ In a Diesel Engine, the Fuel is Ignited by the. Answer: Heat of
Compression
◉ Engine Timing is Generally Set by Using a. Answer: Strobe Light
◉ If an engine is operating at part throttle for long periods, what will
happen to the spark plugs?. Answer: Spark plugs will become covered
with carbon
◉ What will leaking intake valve guides cause?. Answer: Excessive oil
consumption
◉ What generally causes flooding of a carburetor?. Answer: A stuck
float needle valve
◉ On many cars, what is the fuel pump combined with?. Answer:
Vacuum pump
◉ What does carbon fouling of a spark plug indicate?. Answer: Too rich
a mixture
◉ If generator output is excessive even after disconnecting the F
Terminal, where might the trouble be?. Answer: The generator
EXAMINATION TEST 2026 QUESTIONS WITH
ANSWERS GRADED A+
◉ Most Small Gas Engines Use a _________ Ignition System. Answer:
Magneto
◉ Icing Occurs Most Often. Answer: On Cool Damp Days
◉ The Function of the Float in a Carburetor is to. Answer: Close the
Needle Valve
◉ To Improve Stability When Cornering, Manufacturers Added a
Device to Cars Called. Answer: Stabilizer Bar
◉ Adjustment of the Rods on a Car Will Affect. Answer: Toe-in
◉ A Restriction in the Exhaust System is Indicated on a Vacuum Gauge
by a. Answer: Gradual Decrease in Reading
◉ Disc Brakes on a Car Have a Distinct Advantage Over Conventional
Drum Brakes in That They. Answer: Fade Less When Hot
, ◉ In a Diesel Engine, the Fuel is Ignited by the. Answer: Heat of
Compression
◉ Engine Timing is Generally Set by Using a. Answer: Strobe Light
◉ If an engine is operating at part throttle for long periods, what will
happen to the spark plugs?. Answer: Spark plugs will become covered
with carbon
◉ What will leaking intake valve guides cause?. Answer: Excessive oil
consumption
◉ What generally causes flooding of a carburetor?. Answer: A stuck
float needle valve
◉ On many cars, what is the fuel pump combined with?. Answer:
Vacuum pump
◉ What does carbon fouling of a spark plug indicate?. Answer: Too rich
a mixture
◉ If generator output is excessive even after disconnecting the F
Terminal, where might the trouble be?. Answer: The generator
