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WorksheetsEngine Repair 2
Total questions: 10
Worksheet time: 5mins
After replacing a swollen lower radiator hose, the engine continues to overheat. Which of the following is MOST likely causing this condition?
A faulty water pump
A bad headgasket
A faulty lower replacement hose
Air in the system
RTV (Room Temperature Vulcanizing) aerobic sealant:
cures in the ABSENCE of air
Is safe for oxygen sensors
is used primarily inside the engine
cures in the PRESENCE of air
A high mileage engine has a knocking sound that goes away as it warms and reaches operating temperature. Which of these is MOST likely causing this noise?
Loose crankshaft main bolts
Loose flywheel bolts
Piston to cylinder wall clearance
A loose timing belt
Technician A says preignition occurs when a flame front ignites in the combustion chamber before the spark plug fires. Technician B says installing the wrong spark plug in an engine can result in detonation. Who is correct?
Tech A
Tech B
Both
Neither
A turbocharged engine emits blue-gray exhaust. Which of the following would result in this condition?
leaking fuel injector
faulty turbo oil seals
blown head gasket
faulty turbo wastegate
There is a loud squeal at the front of a supercharged V6 engine that gets louder as the engine is accelerated. Which of the following is causing this noise?
chipped compressor wheel
damaged turbine shaft
turbine shaft needle bearings
front roller bearings
A vehicle's engine is slow cranking. Which of the following should the technician check first?
starter
alternator
battery
ignition switch
A vehicle with a new fully charged battery continues to discharge overnight. A battery state of charge test indicates 9.2 volts the next morning. Which test is used to diagnose this condition?
parasitic drain test
alternator full-field test
specific gravity test
voltage drop test
Technician A says to use a cylinder bore gauge to measure the cylinder's bore for excessive taper. Technician B says to measure the cylinder's bore for an out of round condition before installing new pistons. Who is correct?
tech A
Tech B
Both
Neither
When replacing connecting rod bearings in an engine
replace the crankshaft if the connecting rod bearings are worn
scratch the cylinder number on each connecting rod
use oversized bearings
do not mix up the connecting rod cap locations
