Unit 4

Question 1

How should the center line of an escalator be adjusted?

Answer 1

Centered to top and bottom of truss sections

Question 2

Where should center lines stands be installed?

Answer 2

At both ends of the wellways

Question 3

What is a column mark?

Answer 3

A measurement at a specified height above finished floor level

Question 4

What must be verified after the finished floor height and level of an escalator are set?

Answer 4

Incline

Question 5

What drawing type is used to find measurements involving column lines?

Answer 5

Plan view - final layout

Question 6

What is a column line?

Answer 6

A given distance running parallel to a series of columns in a building

Question 7

What is another name used for the lower track line of an escalator?

Answer 7

Return line

Question 8

What are the important points about setting the drive gear (bull gear) of an escalator?

Answer 8

1.parallel with center line
2.set at required distance from center line
3.set at required distance vertically & horizontally from newel center line
4.level from sprocket to sprocket

Question 9

How many parallel set of step tracks are in an escalator?

Answer 9

2

Question 10

What is a requirement of the tracks on both sides of an escalator?

Answer 10

Parallel to and in the same plane with each other ++ equal distance from the center line