MLR Section D

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?

• Tech A only

• Tech B only

• Both Tech A and B

• Neither Tech A or B

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

• Magnetism

• Electricity

• Current

• Voltage

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?

• Tech A only

• Tech B only

• Both Tech A and B

• Neither Tech A or B

Electrical pressure that causes current is known as:

• Voltage

• Amps

• Resistance

• Magnetism

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

• Tech A only

• Tech B only

• Both Tech A and B

• Neither Tech A or B

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?

• Tech A only

• Tech B only

• Both Tech A and B

• Neither Tech A or B

CAN bus C is a ___________ speed network.

• High

• Medium

• Low

• None of the above

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?

• Tech A

• Tech B

• Both Tech A and B

• Neither Tech A or B

Conventional current flow is from:

• DC to AC

• Positive and negative

• AC to DC

• Negative to positive

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?

• Tech A

• Tech B

• Both Tech A and B

• Neither Tech A or B