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ASE A1 ENGINE REPAIR EXAM NEWEST !!! ACTUAL COMPLETE EXAM QUESTIONS AND CORRECT DETAILED ANSWERS (100%CORRECT ANSWERS) A GRADED ./2024 ASE A1 ENGINE REPAIR PRACTICE EXAM QUESTIONS AND CORRECT ANSWERS .$27.99
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ASE A1 ENGINE REPAIR EXAM NEWEST !!! ACTUAL COMPLETE EXAM QUESTIONS AND CORRECT DETAILED ANSWERS (100%CORRECT ANSWERS) A GRADED ./2024 ASE A1 ENGINE REPAIR PRACTICE EXAM QUESTIONS AND CORRECT ANSWERS .
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ASE A1 ENGINE REPAIR
ASE A1 ENGINE REPAIR EXAM NEWEST !!! ACTUAL
COMPLETE EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(100%CORRECT ANSWERS) A GRADED ./2024 ASE A1 ENGINE
REPAIR PRACTICE EXAM QUESTIONS AND CORRECT ANSWERS .
ASE A1 ENGINE REPAIR EXAM NEWEST !!! ACTUAL
COMPLETE EXAM QUESTIONS AND CORRECT DETA...
ASE A1 ENGINE REPAIR EXAM 2024-2025 NEWEST !!! ACTUAL
COMPLETE EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(100%CORRECT ANSWERS) A GRADED ./2024 ASE A1 ENGINE
REPAIR PRACTICE EXAM QUESTIONS AND CORRECT ANSWERS .
A compression test shows that one cylinder is too low. A leakage test
on that cylinder shows that there is excessive leakage. During the
test, air could be heard coming from the tailpipe. Which of the
following could be the cause?
A. Broken piston rings
B. Bad head gasket
C. Bad exhaust gasket
D. An exhaust valve not seating - ANSWER-The correct answer is D. If
an exhaust valve is not seating, air will leak from the combustion
chamber by way of the valve out to the tailpipe and make an
audible sound. Broken rings or a bad head gasket would have air
leaking through the oil filler or cooling system.
Technician A says that main bearing oil clearance can be checked
with plastigage. Technician B says that main bearing oil clearance
can be checked with a dial bore gauge. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANSWER-The correct answer is C, both
technicians are right. Either method can be used to check main
bearing oil clearance.
,Which of the following is NOT a method of correcting excessive valve
stem-to-guide clearance?
A. Knurling the valve stem
B. Knurling the guide
C. Reaming for oversize
D. Guide replacement - ANSWER-The correct answer is A. The valve
stem is hardened and cannot be knurled.
A vacuum gauge is connected to the intake manifold of an engine
running at idle. The pointer on the gauge fluctuates rapidly but
steadies as the engine speed is increased. The test results indicate:
A. A leaking intake manifold gasket
B. Worn valve guides
C. Late ignition timing
D. A weak valve spring - ANSWER-The correct answer is B. Worn
valve guide could cause the needle to fluctuate rapidly at idle but
steady as the engine speed is increased. A leaking intake manifold
gasket or late ignition timing would cause a steady low reading. A
weak valve spring would cause the gauge needle to fluctuate as
engine speed increased.
A technician takes a compression reading on a 4-cylinder engine, and
gets readings of 140, 135, 135, and 40 psi. Then he preforms a wet
compression test, and the readings are almost the same as those in
the first test. Technician A says that a burned valve could cause these
,readings. Technician B says that a broken piston ring could cause
these readings. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANSWER-The correct answer is A, only technician
A is correct. A burned valve will not allow the cylinder to build
compression, and the results from wet and dry compression tests
will be the same. If piston rings (or worn cylinder walls) were at
fault, compression readings from a wet test would exceed dry test
results.
Technician A says that retarded valve timing can cause high cylinder
compression readings. Technician B says that a lean air/fuel mixture
can cause a high intake manifold vacuum reading. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANSWER-The correct answer is D, neither
technician is right. Technician A is wrong because retarded valve
timing will cause the valves to open and close at the wrong time,
thereby reducing compression and manifold vacuum readings.
Retarded valve timing can be caused by a loose timing belt or
chain jumping one or more teeth. Technician B is wrong because a
low but steady manifold vacuum reading may be caused by a lean
air/fuel mixture. Air leaks or vacuum leaks can cause a lean
condition and are common causes of rough idle, hesitation, stalling
, and hard starting. If the mixture is artificially enriched by injecting
propane into the induction system, and engine running lean should
speed up and the vacuum reading should rise.
An engine is being rebuilt and the crankshaft connecting rod journals
have been ground undersize. Specifications show that the original
connecting rod journal size was 2.1228-in. 2.1236-in. If the journals
now measure 2.1032-in., what size bearings should be used?
A. 0.001-in. undersize
B. 0.010-in. undersize
C. 0.020-in. undersize
D. 0.030-in. undersize - ANSWER-The correct answer is C. Adding
0.020 to 2.1032 is 2.1232, which is right in the middle of the
standard specifications, so 0.020-in. undersize bearings should be
used.
Camshaft lift is defined as:
A. the distance the valves are open
B. the height of the lobes on the camshaft
C. the time the valves stay closed
D. the time the valves stay open - ANSWER-The correct answer is B.
The distance the valves are opened is defined as valve lift. The time
the valves stay open is usually referred to as duration.
Technician A says that the burned valve could be the result of too
little valve lash. Technician B says excessive valve lash could cause
very fast camshaft wear. Who is right?
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