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Electric 2 Final 2025

Total questions: 55

Worksheet time: 44mins

Name
Class
Date
1.

Another name for the starter Bendix:

a)

Plug

b)

Solenoid

c)

Pinion

d)

Sun Gear

e)

Flywheel

2.

______ _____ is the reduction in electrical potential (voltage) as current flows through a circuit, caused by the resistance of the wires and other component

(a)  

3.

The _____ and _____ motors are the two most common types found in the automotive industry

a)

Piston, Cycle

b)

Track, Plain

c)

Series, Shunt

d)

Wound, Straight

e)

Direct, Brushless

4.

CEMF:

(a)  

5.

What is NOT a classification of an electric motor?

a)

Series

b)

Shunt

c)

Compound

d)

Stepper

e)

Spindle

6.

Match the following

a)

1.

Planetary

b)

2.

Direct

c)

3.

Reduction Gear

d)

4.

Pneumatic

e)

5.

Alternator

7.

Some starter motors are equipped with _____ ______ thermostats that open the relay circuit and interrupt the current to the solenoid.

(a)  

8.

Match the following

a)

1.

Bendix

b)

2.

Armature

c)

3.

Windings

d)

4.

Relay

e)

5.

Solenoid

9.

Diesel engines require large starter current draw, so several batteries are often connected in ______ to increase available cranking amperage.

a)

Series

b)

Bus-Barred

c)

Stepped Arrangement

d)

Parallel

e)

Twisted Pair

10.

The reciprocal or opposite of resistivity is:

(a)  

11.

Match the following in reference to the contact numbers on a Relay:

a)

1.

Ground

b)

2.

Signal (Trigger)

c)

3.

Out to the Component

d)

4.

12 volt Constant

e)

5.

69

12.

The main property of a good conductor material (on the atomic level):

a)

Several Electrons in the outer valence ring

b)

More protons than Neutrons

c)

One Free Electron in the outer valence ring

d)

More Neutrons than Electrons

e)

No Free Electrons

13.
Which of these substances conducts electricity the best?
a)

Wood

b)

Brick

c)

Copper

d)

Plastic

e)

Silver

14.

A rectifier Bridge Consists of ____ Diodes

a)

6

b)

4

c)

3

d)

2

e)

8

15.

Alternators Convert:

a)

DC to AC voltage

b)

AC to DC voltage

c)

Electricity to Fuel

d)

Almost every time on 3rd Down

16.

What statement is true when discussing the difference between an alternator from a generator in an automotive application?

a)

Alternator produces DC voltage and then converts it to AC voltage. Generators only produce AC voltage.

b)

Alternators produce AC voltage then converts it to DC voltage. Generators only produce AC voltage.

c)

Generators only produce DC voltage. Alternators produce AC voltage then converts it to DC voltage.

d)

Generators produce AC voltage then converts it to DC voltage. Alternators only produce DC voltage.

17.

In a 12 volt system: An alternator with 300 amps of output will have ___ diodes in the rectifier bridge.

a)

6

b)

12

c)

24

d)

25

e)

3

18.

Match the following

a)

1.

Brush

b)

2.

Brushless

c)

3.

V-Belt Pulley

d)

4.

Serpentine Pulley

e)

5.

Stator

19.

Three types of voltage regulators: Type A, Type B, and ____ _____

(a)  

20.

The light frequency that determines the color of a LED is related to the ______ used.

a)

Gas in the bulb

b)

Semiconductor Material

c)

Voltage

d)

Amperage

e)

Outside Lens Color

21.

3 types of Incandescent bulbs:

a)

Bayonet, Wedge, Romain

b)

Edison, Bayonet, Wedge

c)

Wedge, Screw, Woodruff

d)

Terminal, Screw, Push Plug

e)

OEM, JDM, Deutch

22.

 This is a (a)   type wedge bulb.

23.

The light emitting part of an incandescent bulb:

(a)  

24.

When installing an aftermarket radio/stereo... the yellow wire is for:

a)

Battery Constant

b)

Illumination/Dimmer

c)

Ground

d)

Power Antenna Turn-On

e)

Ignition Turn-On

25.

When installing an aftermarket radio/stereo... the blue wire is for:

a)

Ignition Turn-On

b)

Remote Turn-On

c)

Illumination/Dimmer

d)

Data Link

e)

Diagnostics

26.

Devices that convert one form of energy into another are called:

a)

Capacitors

b)

Transistors

c)

Transformers

d)

Transducers

e)

Transmissions

27.

A (a)   is a temperature-sensitive variable resistor:

28.

_______ are 2 wire variable resistance sensors:

a)

Potentiometer

b)

Rheostats

c)

Thermistors

d)

Photoresistors

e)

Hall-Affect

29.

(a)   sensors use mineral crystals to produce voltage or change resistance when compressed.

30.

______ _____ sensors are used to measure rotational speed:

a)

Magneto Affect

b)

Pulse Width

c)

Variable Reluctance

d)

Variable Current

e)

Sine Wave

31.

Match the following

a)

1.

Hall Affect

b)

2.

Variable Reluctance

c)

3.

MAF

d)

4.

Thermistor

e)

5.

Fuel Pressure

32.

The _____ mixture for a gasoline engine is the ideal ratio of air to fuel that burns all fuel with no excess air

a)

Ideolic

b)

Stoichiometric

c)

Geosynchronous

d)

Iambic

e)

Diastolic

33.

A _____ ______ sensor is an active pressure sensor used to measure both dynamic and static pressure:

a)

Variable Capacitance

b)

Delta Wave

c)

Full-Bridge

d)

Pulse Width

e)

Iambic Pentameter

34.

Match the following sensors:

a)

1.

Oxygen Sensor

b)

2.

Knock Sensor

c)

3.

Speed Sensor

d)

4.

Potentiometer

e)

5.

Rheostat

35.

_____ _____ States that the sum of the voltage drops in a series circuit equals source voltage.

(a)  

36.

Reference Voltage is also known as:

a)

Zero Point Voltage

b)

TDP Voltage

c)

TDC voltage

d)

Open Source Voltage

e)

Vref

37.

PTC:

(a)  

38.

The unit for electrical frequency measurement, in cycles per second.

a)

Hertz

b)

Watts

c)

Decibels

d)

Amperes

e)

Bites

39.

The smallest unit of digital information that is either a 1 or 0

a)

Byte

b)

Bit

c)

Joule

d)

Nano

e)

Gig

40.

The rate at which serial data is transmitted.

(a)  

41.

A branch of information technology that uses specialized applications for long-distance transmission of information to and from a vehicle:

(a)  

42.

A unit of 8 bits:

a)

Hexi

b)

Dopple

c)

Sextant

d)

Byte

e)

Cluster

43.

An electrical system problem caused by the transmission of unwanted electrical signals into current-sensitive vehicle circuits:

(a)  

44.

Generates heating directly in the object being heated:

a)

Inductive Heating

b)

Capacitive Heating

c)

Deductive Heating

d)

Cryo Heating

e)

Iambic Heating

45.

______ _______is a graphical programming language used for developing Programmable Logic Controller (PLC) control logic

a)

Pentameter Logic

b)

Cellular Step Logic

c)

Jenkins Logic

d)

Circular Logic

e)

Ladder Logic

46.

_____ ______ ______ is a technique for controlling the power delivered to a device by varying the duration of a pulse in a series of pulses

(a)  

47.

CAN-FD:

a)

Controller Arena Network Flexible Data Rate

b)

Controlled Alignment Node Flexible Data Rate

c)

Compensated Area Network Flexible Download Rate

d)

Controlled Area Network Flexible Data Rate

e)

Controller Area Network Flexible Data Rate

48.

Match the following

a)

1.

Photoresistor

b)

2.

Transistor

c)

3.

Relay

d)

4.

Transformer

e)

5.

Decepticon

49.

J1939 CAN Bus uses 2 colored wires: _____ for Low. _____ for High

(a)  

50.

What type of switch was used on the magnet in the video.

(a)  

51.

What is the size of the Steel Pipe Nipple?

a)

1/4" x 3"

b)

1/2" x 3"

c)

3/4" x 4"

d)

7/8' x 3.5"

e)

1/4"x2.5"

52.

What gauge magnet wire was used in the magnet on the video?

(a)  

53.

Potentiometers supply what type of data to processing circuits?

a)

a.Software

b)

b.Serial

c)

c.Analog

d)

d.Network

54.

Sensors provide information to __________.

a)

Electromagnetic operator devices

b)

Processing circuits

c)

Instrument gauges

d)

Electronic control units

55.

______________ are the simplest sensors of all.

a)

Switches

b)

Pressure

c)

Temperature

d)

Transducers

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