Unit 9

Question 1

What precaution must be taken when installing a vertical raceway?

Answer 1

Allow 1/4 gap between sections

Question 2

What type of flex would be used to pipe a switch in a wet location?

Answer 2

Liquid tight flex

Question 3

What are the vertical runs of conduit or duct in the hoistway called?

Answer 3

Risers

Question 4

What type of conduits must be used when installing limit switches to allow for adjustments?

Answer 4

Flexible conduit

Question 5

What is the minimum number of vertical runs of conduit or duct in the hoistway needed to serve a two car bank of elevators?

Answer 5

1

Question 6

What precautions must be taken when the wire run exceed 100ft in the hoistway?

Answer 6

Install strain support

Question 7

What type of wire is usually used on elevator installations for flexibility?

Answer 7

Insulated - stranded

Question 8

Which of the following would be the largest gauge of wire according to the American wire gauge system?

Answer 8

8 AWG

Question 9

What is an approved grounding method?

Answer 9

An intentional connection to earth using an electrical wire as the conductor

Question 10

What does the term bonding mean with respect to metallic components or devices for electrical equipment?

Answer 10

All metallic components or devices are at the same electrical potential