Font size
WorksheetsAutomotive nocti practice
Total questions: 57
Worksheet time: 29mins
A bulge in the tread of a tire could indicate
A. a broken belt in the tire
B. the tire is over inflated
C. the shocks are worn out
D. the wheel is bent
The service charge for a job that requires 42 minutes at $60.00 an hour would equal
A. $28.50
B. $34.40
C. $42.00
D. $72.10
A battery load test is performed by
A. loading the battery at half the cold cranking amps for 15 seconds
B. loading the battery at the cold cranking amps for 15 seconds
C. cranking the engine for 3 minutes
D. removing the surface charge
In an evaporative system, the _____ stores fuel vapors.
A. purge solenoid
B. diverter valve
C. carbon canister or charcoal
D. PCV valve
A technician accidentally scratches the dash on a customer's vehicle. The technician should
A. take the vehicle to a body shop
B. use touch-up paint to cover the scratch
C. return the vehicle to customer
D. ask the service consultant to call the customer
A map sensor provides information to the PCM by
A. measuring engine vacuum
B. metering the volume of air coming into the engine
C. calculating air fuel ratio
D. measuring throttle angle
A material safety data sheet (MSDS) provides information about first aid measures, stability, and reactivity , and
installation requirements
handling and storage
warranty details
material cost
When putting out a fire involving oily rags, use a__________ fire extinguisher.
Class A
Class B
CLass C
Class D
Which of the following tools is used when measuring a brake rotor?
outside micrometer
inside micrometer
dail indicator
multimeter
How much play should a tie rod end have?
none
0.010 inch
0.020 inch
0.025 inch
Under-inflation of a tire will cause excessive wear on the ______ of the tread.
center
sides
right side
left side
If a front wheel has radial movement but the wheel bearing s pass inspection, what would be the most likely cause?
worn ball joint
faulty tie rod end
worn idler arm
faulty pitman arm
When a front inner-wheel bearing is pitted on a rear wheel drive vehicle, the technician should replace the bearing, race, and
drum
seal
axle
idler arm
What causes outside edge wear on a tire?
over-inflation
under-inflation
positive camber
feathering
Which of the following causes the wheels to return to the straight-ahead position when coming out of a turn?
Camber angle
thrust angle
included angle
caster angle
The shock, strut, and ______ combination is known as the McPherson strut design.
tie rod end
idler arm
spring
torsion bar
which of the following disc brake rotor's total indicated runout is acceptable?
0.005 inch
0.02 inch
0.05 inch
0.20 inch
Which of the following is caused by a defective power brake booster?
low brake fluid
excessive stopping distances
air in the hydraulic system
a seized wheel cylinder
Which of the following can cause a brake pedal to be too close to the floor while stopping?
worn brake rotors and pads
the rear brakes are out of adjustment
brake fluid is low
parking brake does not fully release
Brake fluid that absorbs moisture is considered
hygroscopic
hydrophobic
viscous
condensed
Over-torquing wheel lug nuts could cause vibration, excessive run-out, and
wear on the tire
wear on the bearing
wheel distortion
wheel pitting
Which of the following should a technician use to measure a brake rotor score with a pointed anvil?
magnetic feeler guage
telescoping gauge
outside micrometer
inside micrometer
in electrical circuits, resistance is measured in
amperes
volts
ohms
watts
Which of the following converts ac to dc?
power converter
electric generator
electric motor
alternator diodes
Which of the following is the most common wire identification on a wiring diagram?
number
color
charactor
order
Which of the following devices can be used in place of a relay?
photo cell
LED
transistor
resistor
Which of the following cable colors is used to designate high voltage in a hybrid vehicle?
brown
yellow
orange
red
A battery load test involves loading the battery at half cold cranking amps for
15 seconds
30 seconds
15 minutes
30 minutes
Which of the following can be checked in the starter circuit with a voltage drop test?
voltage
resistance
alternator field current
amperage
Excessive black or gray smoke may be a sign of
improper engine timing
oil level too high
worn piston rings
failure of turbocharger oil seals
The horizontal axis on an oscilloscope screen represents
ohms
amperage
voltage
time
A technician would use an ohmmeter to test
electricity in a battery
variable resistor
6-24 volt system powered circuits
fuel injector voltage
worn piston rings cause a cylinder with low compression to ______ when oil is introduced.
decreased compression slowly
decreased compression completely
increase compression to normal
increase compression above normal
An indication of a leaking transmission cooler in the radiator in vehicles with ethylene glycol is
pink fluid in the overflow reservoir
rust inside the radiator
decreased water-coolant flow
antifreeze found underneath the motor
a defective thermostat will affect emissions, engine drivability, and
engine blow by
the alternator
fuel mixture
mass airflow signal
a 50-50 mixture of ethylene glycol and water in the cooling system raises the boiling point and
raise oil pressure
increases water pump noise
reduces cooling efficiency
decreases the freezing point
When a spark plug heat range is too hot, the spark plug
electrode porcelain blisters
may be to weak to ignite
skips at high speeds
lowers the tip's temperature
a rotor must be measured for _______________ prior to machining
parallelism
thickness
run out
all of these
brake lines must be ____________ at their connections
single flared
double flared
bubble flared
double or bubble
proper way to repair a leaking wheel cylinder
replace
hone and replace cups-seals
coat piston with adhesive
A brake rotor with a parking brake in the center is called
four wheel disc
drum in hat
integral
none of thee
Braks systems are split
longitudinally
diagonally
none of thee
