Unit 12

Question 1

What is the minimum vertical clearance on a traction elevator for the top rail of a standard railing to the building structure once the car has reached its maximum upward movement as per the ASME A17.1/CSA B44 code?

Answer 1

100mm or 4inches

Question 2

How much load must be placed in the elevator when testing the safeties on initial inspection as per ASME A17.1/CSA B44 code?

Answer 2

100%

Question 3

What modes of operation will be operative when the car or hoistway door by pass switches are activated as per the ASME A17.1/CSA B44 code?

Answer 3

Inspection operation

Question 4

What is the maximum bottom runby for elevator cars as per the ASME A17.1/CSA B44 code?

Answer 4

24inches or 600mm

Question 5

What percentage of rated load must the brake be engineered to hold as per the ASME A17.1/CSA B44 code?

Answer 5

125%

Question 6

What speed should the governor electrical overspeed switch be set to open at in the down direction as per ASME A17.1/CSA B44 code?

Answer 6

90%-95%

Question 7

What is the maximum levelling zone above and below the landing where and automatic levelling device is used a per the ASME A17.1/CSA B44 code?

Answer 7

450mm or 18inches

Question 8

What is the maximum allowable car speed when on inspection operation as per the ASME A17.1/CSA B44 code?

Answer 8

.75 m/s or 150 fpm

Question 9

What must be done to all safety circuit devices before running the car on automatic operation?

Answer 9

Test & verify. Ensure cams & limits are activated physically with car, ensure car stops & is not permitted to run with a circuit open

Question 10

What must be done to all temporary jumpers before running the car on automatic operation?

Answer 10

Must be removed & logged