ASE A1 - PRACTICE TEST (SECTION A) |2025-2026 LATEST UPDATED|
55 REAL EXAM COMPLETE QUESTIONS AND ANSWERS | 100%
RATED CORRECT | 100% VERFIED | ALREADY GRADED A+
1. an engine miss is being diagnosed using a cylinder leakage test. Technician A says that any
cylinder with over 20% leakage has excessive leakage. Tech B says that air leaking from the
tailpipe indicates a cracked cylinder.
A only
B only
Both A & B
Neither A nor B - (ANSWER)A only
If cylinder leakage exceeds 20%, check for air escaping the tailpipe, the PCV valve opening in
the rocker arm cover, and the top of the throttle body or carburetor.
Air leaking from the tailpipe usually indicates an exhaust valve leak
1. an engine miss is being diagnosed using a cylinder leakage test. Technician A says that any
cylinder with over 20% leakage has excessive leakage. Tech B says that air leaking from the
tailpipe indicates a cracked cylinder.
,A only
B only
Both A & B
Neither A nor B - (ANSWER)A only
If cylinder leakage exceeds 20%, check for air escaping the tailpipe, the PCV valve opening in
the rocker arm cover, and the top of the throttle body or carburetor.
Air leaking from the tailpipe usually indicates an exhaust valve leak
23. during a compression test, a cylinder has 40% of the specified compression reading. When
the tech performs a wet test, the compression reading on this cylinder has 75% of the specified
reading. The cause of the low compression reading could be
worn piston rings
a burned exhaust valve
a bent intake valve
a worn camshaft lobe - (ANSWER)worn piston rings
, if compression increases during a wet test, this indicates worn piston rings. Compression would
not increase if an exhaust valve is burned, intake valve is bent, or camshaft lobe is worn.
23. during a compression test, a cylinder has 40% of the specified compression reading. When
the tech performs a wet test, the compression reading on this cylinder has 75% of the specified
reading. The cause of the low compression reading could be
worn piston rings
a burned exhaust valve
a bent intake valve
a worn camshaft lobe - (ANSWER)worn piston rings
if compression increases during a wet test, this indicates worn piston rings. Compression would
not increase if an exhaust valve is burned, intake valve is bent, or camshaft lobe is worn.
35. the customer complains that the engine cranks but does not start; the first thing to check
should be
55 REAL EXAM COMPLETE QUESTIONS AND ANSWERS | 100%
RATED CORRECT | 100% VERFIED | ALREADY GRADED A+
1. an engine miss is being diagnosed using a cylinder leakage test. Technician A says that any
cylinder with over 20% leakage has excessive leakage. Tech B says that air leaking from the
tailpipe indicates a cracked cylinder.
A only
B only
Both A & B
Neither A nor B - (ANSWER)A only
If cylinder leakage exceeds 20%, check for air escaping the tailpipe, the PCV valve opening in
the rocker arm cover, and the top of the throttle body or carburetor.
Air leaking from the tailpipe usually indicates an exhaust valve leak
1. an engine miss is being diagnosed using a cylinder leakage test. Technician A says that any
cylinder with over 20% leakage has excessive leakage. Tech B says that air leaking from the
tailpipe indicates a cracked cylinder.
,A only
B only
Both A & B
Neither A nor B - (ANSWER)A only
If cylinder leakage exceeds 20%, check for air escaping the tailpipe, the PCV valve opening in
the rocker arm cover, and the top of the throttle body or carburetor.
Air leaking from the tailpipe usually indicates an exhaust valve leak
23. during a compression test, a cylinder has 40% of the specified compression reading. When
the tech performs a wet test, the compression reading on this cylinder has 75% of the specified
reading. The cause of the low compression reading could be
worn piston rings
a burned exhaust valve
a bent intake valve
a worn camshaft lobe - (ANSWER)worn piston rings
, if compression increases during a wet test, this indicates worn piston rings. Compression would
not increase if an exhaust valve is burned, intake valve is bent, or camshaft lobe is worn.
23. during a compression test, a cylinder has 40% of the specified compression reading. When
the tech performs a wet test, the compression reading on this cylinder has 75% of the specified
reading. The cause of the low compression reading could be
worn piston rings
a burned exhaust valve
a bent intake valve
a worn camshaft lobe - (ANSWER)worn piston rings
if compression increases during a wet test, this indicates worn piston rings. Compression would
not increase if an exhaust valve is burned, intake valve is bent, or camshaft lobe is worn.
35. the customer complains that the engine cranks but does not start; the first thing to check
should be
