Engine Repair Test 1 questions with
verified answers already passed
Technician A says the top of a pistons travel is called BDC.
Technician B says the bottom of a pistons travel is called BDC.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B - correct answer ✔✔B
Technician A says oil rings prevent oil from entering the combustion chamber above the piston.
Technician B says compression rings prevent combustion pressure from entering the crankcase.
Who is right? - correct answer ✔✔Both
Technician A says the crankshaft converts up-and-down motion into turning motion.
Technician B says counterweights are formed onto the crankshaft to help prevent vibration.
Who is right? - correct answer ✔✔Both
Technician A says the harmonic balancer is mounted at the rear of the crankshaft.
Technician B says the flywheel has a ring gear mounted to its circumference to provide a means
to start the engine.
Who is right? - correct answer ✔✔B
, Technician A says spark plugs are threaded into holes in the head and protrude into the
combustion chamber (gasoline engines).
Technician B says V-type engines have one cylinder head.
Who is right? - correct answer ✔✔A
Technician A says valves act as gates.
Technician B says most V-type engines have two cylinder heads.
Who is right? - correct answer ✔✔Both
Technician A says valves seal the pressure of compression in the combustion chamber.
Technician B says a head gasket seals the combustion chambers, and water and oil passages.
Who is right? - correct answer ✔✔Both
The Four-Stroke Cycle (Otto Cycle) is being discussed.
Technician A says a stroke is one movement of the piston.
Technician B says one stroke of the piston moves the crankshaft through one complete
revolution.
Who is right? - correct answer ✔✔A
The Four-Stroke Cycle (Otto Cycle) is being discussed.
Technician A says almost all engines on the road today operate on a cycle of four piston strokes.
Technician B says the strokes are the intake stroke, compression stroke, power stroke, and the
exhaust stroke.
Who is right? - correct answer ✔✔Both
The Four-Stroke Cycle (Otto Cycle) is being discussed.
Technician A says both valves are open during the compression stroke.
verified answers already passed
Technician A says the top of a pistons travel is called BDC.
Technician B says the bottom of a pistons travel is called BDC.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B - correct answer ✔✔B
Technician A says oil rings prevent oil from entering the combustion chamber above the piston.
Technician B says compression rings prevent combustion pressure from entering the crankcase.
Who is right? - correct answer ✔✔Both
Technician A says the crankshaft converts up-and-down motion into turning motion.
Technician B says counterweights are formed onto the crankshaft to help prevent vibration.
Who is right? - correct answer ✔✔Both
Technician A says the harmonic balancer is mounted at the rear of the crankshaft.
Technician B says the flywheel has a ring gear mounted to its circumference to provide a means
to start the engine.
Who is right? - correct answer ✔✔B
, Technician A says spark plugs are threaded into holes in the head and protrude into the
combustion chamber (gasoline engines).
Technician B says V-type engines have one cylinder head.
Who is right? - correct answer ✔✔A
Technician A says valves act as gates.
Technician B says most V-type engines have two cylinder heads.
Who is right? - correct answer ✔✔Both
Technician A says valves seal the pressure of compression in the combustion chamber.
Technician B says a head gasket seals the combustion chambers, and water and oil passages.
Who is right? - correct answer ✔✔Both
The Four-Stroke Cycle (Otto Cycle) is being discussed.
Technician A says a stroke is one movement of the piston.
Technician B says one stroke of the piston moves the crankshaft through one complete
revolution.
Who is right? - correct answer ✔✔A
The Four-Stroke Cycle (Otto Cycle) is being discussed.
Technician A says almost all engines on the road today operate on a cycle of four piston strokes.
Technician B says the strokes are the intake stroke, compression stroke, power stroke, and the
exhaust stroke.
Who is right? - correct answer ✔✔Both
The Four-Stroke Cycle (Otto Cycle) is being discussed.
Technician A says both valves are open during the compression stroke.
