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MLR Section D

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

Tech A says electricity is the movement of free atoms from one place to another. Tech B says electricity is the movement of free elements form one place to another. Who is right?

a)

Tech A only

b)

Tech B only

c)

Both Tech A and B

d)

Neither Tech A or B

2.

An atomic force that can attract and repel ferrous substances is known as:

a)

Magnetism

b)

Electricity

c)

Current

d)

Voltage

3.

Tech A says an insulator is a substance that resists the flow of electricity. Tech B says the atoms in an insulator are very stable and resist electron movement. Who is right?

a)

Tech A only

b)

Tech B only

c)

Both Tech A and B

d)

Neither Tech A or B

4.

Electrical pressure that causes current is known as:

a)

Voltage

b)

Amps

c)

Resistance

d)

Magnetism

5.

Tech A says dc circuits are not normally used in automotive circuits. Tech B says certain automotive computer sensors use ac. Who is correct?

a)

Tech A only

b)

Tech B only

c)

Both Tech A and B

d)

Neither Tech A or B

6.

Tech A says a series circuit has only one path for current. Tech B says a series circuit can have only one load. Who is right?

a)

Tech A only

b)

Tech B only

c)

Both Tech A and B

d)

Neither Tech A or B

7.

CAN bus C is a ___________ speed network.

a)

High

b)

Medium

c)

Low

d)

None of the above

8.

Two technicians are discussing relays. Tech A states that a set of normally open (NO) contacts will have continuity when the relay is in the off position (i.e. not energized). Tech B states that a set Of (NC) contacts will have continuity when the relay is in the “off” position (I.e. not energized). Which technician is correct?

a)

Tech A

b)

Tech B

c)

Both Tech A and B

d)

Neither Tech A or B

9.

Conventional current flow is from:

a)

DC to AC

b)

Positive and negative

c)

AC to DC

d)

Negative to positive

10.

Tech A says that a good test of an alternator charging system is to remove the battery positive cable off the battery post, and see if the engine dies. Tech B says that the practice of removing a battery cable connection while the engine is running can damage the electronics on the vehicle. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Tech A and B

d)

Neither Tech A or B

11.

And ignition coil is an example of:

a)

Device that uses low current flow to control a higher current flow.

b)

An electrical storage device.

c)

A device that controls fuel flow to the engine.

d)

A step-up transformer.

12.

Which of the following is not part of the supplemental restraint system (SRS):

a)

Telematics

b)

Seatbelt pre-tensioners

c)

Airbags

d)

Side Curtians

13.

True or false. Some networks transmit and receive signals over a single wire, but those with dual wires commonly call the two signal wires: “CAN-bus high” and “CAN-bus low” with the same message sent on both lines.

a)

True

b)

False

14.

Tech A says a resistor is it designed to extract energy from the current flow. Tech B says that a DVOM can be used to check for a voltage drop. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Tech A and B

d)

Neither Tech A or B

15.

Two technicians are discussing battery load testing. Tech A says that if the battery fails the load test, it is bad and should be replaced. Tech B says if it fails the load test, it should be fully charged and the test repeated. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Tech A and B

d)

Neither Tech A or B

16.

The ___________________ monitors battery voltage and varies current flow through the rotor field circuit.

a)

Armature

b)

Voltage regulator

c)

Rotor

d)

Slip rings

17.

Tech A says you must have a power supply for a simple circuit to work. Tech B says a switch will interrupt current flow. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Tech A and B

d)

Neither Tech A or B

18.

True or false: increasing the resistance of a variable resistor wired in series with a lightbulb will affect the amperage through the lightbulb.

a)

True

b)

False

19.

Tech A says AC stands for alternating voltage. Tech B says DC is used in electric motors on most hybrid vehicles. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Tech A and B

d)

Neither Tech A or B

20.

To conduct a ‘continuity’ test with an ohmmeter, circuit power is:

a)

Disconnected

b)

Connected

c)

Fused

d)

Either connected or disconnected. it doesn’t matter.