Kaplan- Lesson 9: Verical Transportation

Question 1

In regards to Stairs, safe practice dictates maintaining one of the three conventional relationships between riser and tread. What are the they?

Answer 1

Riser + Tread = 17 - 17.5 inches
Riser x Tread = 70 to 75 inches
2 Risers + Tread = 24 - 25 inches

Question 2

The vertical distance between stair landings may not exceed ____. Headroom clearance should never be less than ____.

Answer 2

12 feet

6’ - 8”

Question 3

Stairways more that ___ inches wide require intermediate handrails.

Answer 3

88”

Question 4

T/F A 1:20 or less slope is not considered a ramp.

Answer 4

True

Question 5

A 1:15 or more sloped ramp requires ______.

Answer 5

handrails

Question 6

What is the maximum slope permitted for access for persons with disabilities?

Answer 6

1:12

Question 7

What is the maximum slope permitted by the building code?

Answer 7

1:8 (typically found in theater aisles)

Question 8

What is the required width of a handicapped ramp?

Answer 8

36”

Question 9

What is the maximum rise of a ramp?

Answer 9

30”

Question 10

Landings must be at least ___ feet long.

Answer 10

5’

Question 11

Handrails are required on a handicapped ramp if the ramp is longer than ___ feet or has a rise greater than ___ inches.

Answer 11

6’; 6”

Question 12

What are the two major types of elevators?

Answer 12

Hydraulic and Electric

Question 13

Where are hydraulic elevators used?

Answer 13

Low rise buildings (max of 5 stories or 50’).

Question 14

T/F Electric elevators cost more than Hydraulic.

Answer 14

True.

Hydraulic cost less because of their simplicity.

Question 15

In an electric elevator the motor and drum assembly that moves the elevator car is called a ____________. What are the two types?

Answer 15

Traction machine.

Geared or gearless

Question 16

Gearless machines are used for ____ speed installations, while geared machines are used for ____ speed applications.

Answer 16

high; low

Question 17

What does the governor do in regards to an elevator?

Answer 17

Measures and limits the elevator speed by means of the control panel.

Question 18

A small office building normally requires a minimum size elevator car that is rated at _____ pounds and has a car that is ___ x ___.

Answer 18

2,500 lbs; 5’ x 7’

Question 19

What is the rule of thumb for determining elevator speed?

Answer 19

1.6 x Rise in feet + 350.

Question 20

What elevator operating system answers all calls in the direction of the car’s travel?

Answer 20

Selective-Collective

Question 21

What elevator operating system answers the first button pressed and has no ability to store calls?

Answer 21

Single- Automatic Operation

Question 22

How big should an elevator be in a hospital?

Answer 22

5’-4” x 8’-4” and have a capacity of 3,500 lbs.

Question 23

The normal angle of incline of an escalator is _____.

Answer 23

30 degrees.

Question 24

What are the two standard widths of escalators?

Answer 24

32” and 48”

Question 25

The maximum usable speed of an elevator is generally limited by

A. considerations of safety
B. car capacity
C. counterweight/ load ratio
D. building height.

Answer 25

D. building height.

Question 26

In the design of a three-story commercial building with a max height of 45’, the architect wishes to have a constant roof silhouette with no projections above the 4’ high parapet. Consequently, the architect should choose a(n)

A. electric elevator with geared traction and operating machinery at the basement level.

B. gearless electric elevator with operating machinery in a 4’ high penthouse.

C. hydraulic elevator with operating machinery in a 4’ high penthouse.

D. hydraulic elevator with operating machinery located in the elevator pit.

Answer 26

D. hydraulic elevator with operating machinery located in the elevator pit.

Question 27

The recommended speed of a passenger elevator in a 20-story building should be about

A. 200 feet per minute.
B. 300 feet per minute.
C. 800 feet per minute.
D. 1,000 feet per minute.

Answer 27

C. 800 feet per minute.

Question 28

Every fire door that is part of a fire stairway exiting system must open

A. in the direction of travel.
B. into the enclosed stairway.
C. toward the flight leading down.
D. toward the building exterior.

Answer 28

A. in the direction of travel.

Question 29

In which of the following ways do freight elevators generally differ from passenger elevators. Check all that apply.

A. they are never used by people.
B. they are slower.
C. they have greater weight capacity.
D. they require fewer safety features.
E. their doors operate differently.
F. they are physically larger.

Answer 29

B. they are slower.
C. they have greater weight capacity.
E. their doors operate differently.

Question 30

In order to connect two levels whose difference of elevation is two feet, a handicapped ramp must be at least

A. 10’ long
B. 12’ long
C. 24’ long
D. 30’ long

Answer 30

C. 24’ long

Question 31

What safety device on an electric elevator provides life safety protection in the event of a power failure?

A. a governor
B. an automatic brake
C. the interlocks
D. the car bumpers

Answer 31

B. an automatic brake

Question 32

The principal advantage in the use of moving ramps is

A. speed
B. comfort
C. safety
D. convenience

Answer 32

A. speed

Question 33

In determining the total number of elevators required in a new building, an architect should consider the

I. total number of floors.
II. estimated volume of traffic.
III. number of hours of operation.
IV. elevator roping system
V. elevator car size.

A. II & V
B. I, III, & IV
C. I, II, & V
D. II, III, IV, & V

Answer 33

C. I, II, & V

I. total number of floors.
II. estimated volume of traffic.
V. elevator car size.

Question 34

Escalators are most effectively used in situations that require

A. low cost
B. high speed
C. considerable life safety
D. considerable user capacity

Answer 34

D. considerable user capacity