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Ase a1 engine repair quiz 1 questions and answers
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Ase a1 engine repair quiz 1 questions andanswers
The reading on the outside metric micrometer in the illustration above indicates
A.6.50mm
B.6.00mm
C.6.50mm - ANS -A.6.50mm
2.when removing and replacing piston rings on a cast aluminum alloy piston the
the technician should:
A.use the old ring and a feeler gauge to measure piston ring groove clearance
B.clean the piston in a caustic hot tank
C.use a drill and a sanding disc to remove tarnish
D.use the new ring and a feeler gauge to measure piston ring groove clearance -
ANS -D. Use the new ring and a feeler gauge to measure piston ring groove
clearance
3.during a cylinder power balance test on a COP ignition system the rpm drop of
the #5 cylinder is less than the others all of the following will cause this test
result except
A. A faulty ignition coil
B. A faulty exhaust valve
C. A faulty fuel pressure regulator
D. A faulty fuel pressure regulator - ANS -C. A faulty fuel pressure regulator
4.A turbocharged engine has poor high end performance
Technician A says too much exhaust pressure bypassing the turbine wheel
results in this conduit technician B says a stuck closed wastegate results in
under boost and poor high end performance. Who is correct?
A.technician A
B.Technician B
C.Both A and B
D.neither A or B - ANS -A. Technician A
, 5.which of the following is most likely causing an engine to have excessive
crankshaft endplay?
A.worn rod bearings
B.worn thrust bearings
C.worn crankshaft main bearings
D.worn camshaft bearings - ANS -B.worn thrust bearings
6.A compression test indicates the number one cylinders compression is below
specifications. The compression increases after injecting oil into the cylinder.
Which of the following is causing this test result?
A. Worn piston rings
B.A faulty intake valve.
C.A faulty head gasket
D. A faulty exhaust valve - ANS -A.worn piston rings.
7.A vehicle has blue gray colored exhaust emitting from its tailpipe in e all of the
following results in this condition except
A.worn piston rings
B.A leaking fuel injector
C.Leaking valve seals
D.A clogged pvc valve - ANS -A leaking fuel injector
8.A ridge has formed on an engine block just above the piston rings travel. Which
of the following is used to remove this ridge
A. A cylinder ridge reamer
B.A flexible beaded home
C.Both A or B
D.Neither A or B - ANS -A. A cylinder ridge reamer
9.A vehicle briefly blows blue gray exhaust from its tailpipe only in the morning or
after it's been sitting for a while which of the following is causing this condition
A. A leaking cylinder head gasket
B.leaking valve stem seals
C.A leaking fuel injector
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