Exam (elaborations)
ASE A1 (Engine Repair) Practice Test - Cumulative.
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- ASE A1 Practice Test - Cumulative
ASE A1 (Engine Repair) Practice Test - Cumulative.
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ASE A1 (Engine Repair) Practice Test -Cumulative
a battery load or capacity tester, as shown in the figure, is used to test the battery
capacity. during this test, the battery is discharged at 1/2 the CCA for
15 sec
20 sec
25 sec
30 sec - ANS-15 seconds
a battery rated at 600 CCA is load tested at 1/2 its rated CCA for 15 seconds. the
results show 10.1 volts. the results indicate that this battery:
is satisfactory
needs recharging
is bad and should be replaced
should be retested at load for 30 seconds - ANS-is satisfactory
a bent connecting rod may cause
uneven connecting rod bearing wear
uneven main bearing wear
uneven piston pin wear
excessive cam bearing wear - ANS-uneven connecting rod bearing war
all others are not causes of a bent connecting rod
A bent valve spring must be replaced if it has a spring height variance of more than
0.005 inch
0.0625 inch
0.125 inch
0.025 inch - ANS-0.125 inch
0.125 is beyond spec
0.005, 0.0625, 0.025 is within spec.
,a collapsed cooling system hose may be an indication of a:
damaged radiator cap sealing gasket
damaged radiator filler neck seat
damaged expansion tank
damaged radiator cap vacuum valve - ANS-damaged radiator cap vacuum valve
a cooling system is being checked with a pressure tester. the gauge pressure rises
when the engine is started.
A says this could be caused by a crack in the combustion chamber.
B says this could be caused by clogged tubes in the radiator
A
B
Both
Neither - ANS-A
a clogged radiator would not cause this
a crank journal is being measured in the same direction at opposite ends. this is
measuring for:
taper
out-of-roundness
wear
bearing size - ANS-taper
~crank journal taper is measured in the same direction at opposite ends
a cylinder balance test is being performed on an engine to determine which cylinder is
causing a miss.
Tech A says that when the faulty cylinder is disabled, engine rpm will drop more than for
the other cylinders.
Tech B says disabling the faulty cylinder will cause the engine to stall
A,
B,
Both,
Neither, - ANS-Neither
,the faulty cylinder will not cause the engine to stall, neither will it cause the engine to
drop in RPM since it is faulty.
a cylinder balance test on a carbureted engine has revealed one cylinder is contributing
less power than the others. The LEAST likely cause of this is:
faulty ignition system
burned exhaust valve
faulty carburetor
leaking intake manifold - ANS-faulty carburetor
-faulty ignition system, burned exhaust valve, and leaking intake manifold are likely to
cause one cylinder to provide less power than others. The carburetor would not cause
one single cylinder to contribute less power.
a cylinder block deck is being measured for warpage.
A says that if the manufacturer does not provide a warpage limit spec, warpage under
0.005 inch is acceptable.
B says if warpage exceeds 0.001 inch the block must be resurfaced
A
B
Both
Neither - ANS-A
warpage under 0.005 inch is usually acceptable
A cylinder block has just been hot tanked and is ready for inspection.
A says the block deck should be checked for warpage using a straightedge and a feeler
gauge.
B says minor nicks or burns on the block deck can be removed using a whetstone or a
file
A
B
Both
Neither - ANS-Both
The block deck is check for warpage using a straightedge and a feeler gauge. Minor
nicks or burns on the block deck can be removed using a whetstone or a file
, a defective water pump can be diagnosed by all of the following EXCEPT by:
observing residue at the water pump drain hole
observing a coolant leak from the water pump
hearing a groaning noise at cruising speeds
using a pressure tester - ANS-hearing a groaning noise at cruising speeds
-residue at the water pump drain hole may indicate a damage seal or bearings
-coolant leaking from the water pump is a sign of failure
-a pressure tester should indicate a water pump leak
a gear type oil pump is being cleaned and inspected.
A says that gear thickness and backlash are not usually measured; the gears and
housing are only inspected for scoring and damage.
B says that gear thickness and backlash should always be measured
A
B
Both
Neither - ANS-A
gear thickness and backlash specs are rarely provided by mfrs. the gears and housing
should be inspected for scoring and other damage
a heavy thumping noise occurs with the engine idling, but the oil pressure is normal. this
may be caused by:
worn pistons and cylinders,
loose flywheel bolts,
worm main bearings,
loose camshaft bearings, - ANS-loose flywheel bolts
-worn pistons and cylinders would cause a thumping noise during acceleration
-worn main bearings cause a thump when the engine is started
-loose camshaft bearings would cause a growling noise at all times
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