WorksheetsChapter 14 Starting Systems
Total questions: 20
Worksheet time: 15mins
The only rotating component of the starter; has three main components: the shaft, windings, and the commutator.
solenoid
armature
motor
poles
A device that prevents the starter motor from operating if the engine is running.
starter drive
solenoid
automatic disengagement lockout (ADLO)
electrical kick out interrupt (EKOI)
A damaging condition for starter motors in which excess current flows through the starter, causing the motor to burn out prematurely.
low voltage burn out
high voltage burn out
low current burn out
high resistance burn out
A starter motor drive system in which the motor armature directly engages the flywheel through a pinion gear.
gear reduction drive
direct drive
planetary drive
solenoid drive
A thermostat that monitors the temperature of the motor and opens a relay circuit to interrupt the current to the solenoid if prolonged cranking causes the motor temperature to exceed a safe threshold.
overcrank
overspeed
low voltage
high resistance
An electromagnetic force produced by the spinning magnetic field of the armature, which induces current in the opposite direction of battery current through the motor.
electromotive force
counter-electromotive force
clockwise magnetic force
counter-clockwise magnetic force
A starter motor drive system in which the motor multiplies torque to the starter pinion gear by using an extra gear between the armature and the starter drive mechanism.
direct drive
reduction gear
overdrive gear
reverse gear
A type of gear reduction system in which a 3 member gear set reduces the starter profile to multiply motor torque to the pinion gear.
in-direct
planetary
reverse
over-drive
A ______________ is a type of starter that is recently losing popularity in the diesel engine market.
planetary drive
gear reduction
direct drive
solenoid engaged
All of the following are benefits of gear reduction starters EXCEPT?
lighter weight
smaller D.C. motor
less amperage draw
constant pinion engagement
Starting circuits are wired in?
parallel
series
series-parallel
closed circuit
Which of the following would be a minimum cranking speed for a diesel engine?
175
125
200
300
A non planetary type gear reduction starter can be identified by which of the following?
offset housing
detachable solenoid housing
single wire connection
constant engagement pinion
A diesel engine starter should not exceed ________ seconds crank time and ________ minutes rest before next crank cycle.
45 and 3
30 and 2
60 and 1.5
10 and 1
When the starter voltage drops below ________, the voltage sensing relay will disable the starter to prevent damage.
7.2
8.8
9.2
10.8
The thermal overcrank protection device protects the ___________ from overheat damage.
starter solenoid
starter motor
starter relay
starter bendix
Magnetic switches are located in the _______________ of a diesel engine starting circuit when used.
starter relay control
starter solenoid control
main positive battery cable
main negative battery cable
A technician must disable the __________ circuit of the engine before performing a starting circuit voltage drop test.
overcrank
ignition
voltage sensing
auxiliary power
To perform a current draw test on a starting circuit, the technician will need ___________?
a voltmeter
an inductive amperage clamp
an ohm meter
a flow meter
An open circuit voltage test would need to performed prior to all the following tests EXCEPT?
starting circuit voltage drop
starter circuit current draw
solenoid control resistance
engine cranking speed
