Pre test
When performing a battery check, the state of charge should not be lower than what percentage?
. 50%
____________ connected in parallel to the battery provide a high initial current to the starter to speed up the armature rotation.
Ultra-capacitors
Which of the following is tested while the circuit is under load?
Voltage drop
What test instrument is used to test an armature?
Growler
Small resistances will become larger as amperage increases is predicted by which of the following laws?
Joule's Heating
If a starter turns, but the engine does not, this could be caused by which of the following?
Pinion slipping
What type of starter can be identified by an offset drive housing to the motor housing?
Reduction gear drive
___________________ is when the motor multiplies torque to the starter pinion gear by using an extra gear between the armature and the starter drive mechanism.
Reduction gear drive
Which of the following uses electromagnets to close contacts and act like a switch?
Relays
What types of motors develop the highest torque and are used as starting motors?
Series
In starter motors, what are placed between the solenoid and housing to adjust pinion clearance?
Shims
ECM-controlled circuits use the _________ as an input device.
ignition key
What is the electric motor classification where the field and armature windings are connected in parallel?
Shunt
A mechanical problem that may cause starting system problems includes________________.
incorrect injection or valve timing
What types of motors are used in instrument cluster gauges, turbochargers, and EGR actuators where high precision movement is required?
Stepper
Which of the following switches would be an overcrank protection switch?
Thermal protection
______________are made of heavy, flat, copper strips that can handle the heavy current flow of the series motor.
Armature windings
What is the only rotating component of the starter?
Armatures
Which of the following circuits prevents the starter motor from operating if the engine is running?
Automatic disengagement lockout
What might the cause be if the motor has a whine or siren sound just after starting?
Damaged flywheel ring gear teeth
When battery voltage drops below _________volts while cranking, the voltage-sensing relay will typically open-circuit the starter relay circuit.
7.2
What is produced by the spinning magnetic field of the armature, which induces current in the opposite direction of battery current through the motor?
CEMF
Which of the following is made up of heavy copper segments separated from each other and the armature shaft by insulation?
Commutators
What test would you do to measure a battery's capacity?
Conductance test
A typical electrical problem that can cause starting system problems includes____________.
a faulty control circuit
Battery cable diameters should be sized for maximum _____________.
amperage capacity
What starter motor component would you test the resistance and current draw of the pull-in and hold-in windings?
b .Solenoid
If the engine cranks slowly or does not start, the cause might be_____________.
battery cables too small or poor connections
Worn bushing or bearings will cause excessive __________.
current draw
Direct current motors are categorized by the arrangement of _________.
electromagnetic circuits
If the solenoid clicks or chatters, it might indicate that there is (are) _________________.
loose or corroded battery terminals
Reversing the direction of current flow in the conductor causing the conductor to move in the opposite direction is known as ____________.
motor effect
Starter motors can be tested in two ways. The off-vehicle test is called a(n) _________test.
no-load
Direct-drive starters transfer torque directly to the ___________gear.
pinion
Conducting less amperage means __________ in circuits is reduced, with less damage and loosening of electrical connections.
resistance
The __________ on the starter motor switches the high current flow required by the starter motor on and off.
solenoid
Field coils are connected in series with the armature windings through the ________.
starter brushes
The greatest ___________ is produced at low speed since the motor will draw the highest amperage.
torque
The starter motor is an electric motor mounted on the engine block or ____________.
transmission
When checking starter motor components, use a thin metal strip, then rotate the armature. A ______ strip means the armature is shorted and requires replacement.
vibrating