Unit 5

Question 1

Where should you look for any signs of rubbing on an exciter?

Answer 1

Between the rotor and the stator

Question 2

What color will a transformer turn if it gets too hot?

Answer 2

Shade of yellow or brown

Question 3

Which type of circuit breaker responds instantaneously when an excess of current flows through the breaker?

Answer 3

Magnetic

Question 4

Which relay component provides a constant restraining force keeping the armature in the normal (deenergized position)

Answer 4

Spring

Question 5

Which relay component is completely self-contained and has no moving parts?

Answer 5

Solid-state

Question 6

The closing assembly of a circuit breaker usually consists of

Answer 6

closing coil or motor and a control switch

Question 7

Which ohmmeter reading indicates that a fuse is good and no further testing is necessary?

Answer 7

Zero

Question 8

In what type of weather can a static charge be most hazardous?

Answer 8

Dry, cold weather

Question 9

At what voltage can static charges ignite gasoline fumes?

Answer 9

1500

Question 10

What function does a static ground serve?

Answer 10

To dissipate or reduce unwanted electrical charges in hazardous areas to ground

Question 11

What function do equipment grounds serve?

Answer 11

To connect all noncurrent carrying metal parts of an electrical system to ground

Question 12

When installing a star ground, what is the best approach to lower resistance and reactance at the same time?

Answer 12

Increase the number of conductors while keeping their lengths short

Question 13

It is important to use straight conductors when installing grounds because a curved conductor

Answer 13

can cause inductance.

Question 14

Before making a ground connection to a water pipe, check for the

Answer 14

presence of electric current

Question 15

The purpose of bonding the generators neutral and ground is to

Answer 15

provide a path for electricity to ground in the event of a fault

Question 16

You will bond the generator’s neutral and ground if you are providing

Answer 16

prime power generation and a standby generator with a switch neutral

Question 17

Which automatic transfer switch control sends a signal to transfer the load to generator power?

Answer 17

Transfer control

Question 18

When conducting a visual inspection of an automatic transfer switch, what should you do if you find a problem with a component?

Answer 18

Replace it immediately

Question 19

What automatic transfer switch adjustment could be set to zero if the generator has a built-in shutdown timer?

Answer 19

Engine shutdown delay

Question 20

When installing an automatic transfer panel, what do you have to ensure when double-checking your work?

Answer 20

Ensuring phase rotation is correct and that all connections are tight