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Cm 485 > saftey part two > Flashcards

saftey part two Flashcards

1
Q

How often does a sling have to be inspected?
A. Yearly
B. Monthly
C. Once per day at the beginning of the shift
D. Each day before sling use and during sling use

A

D. Each day before sling use and during sling use

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2
Q

A wire rope is designated as a 1-3/4 inch, 6 x 37 - IWRC. What does the 6 indicate?
A. Strands
B. Diameter
C. Rated Capacity
D. The number of wires per strand

A

A. Strands

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3
Q

A wire rope is designated as a 3/4 inch, 6 x 19 - IWRC. What does the 19 indicate?
A. Strands
B. Diameter
C. Rated Capacity
D. The number of wires per strand

A

D. The number of wires per strand

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4
Q
  1. A wire rope is designated as a 3/4 inch, 6 x 19 - IWRC. What does the IWRC mean?
    A. Improved Wire Rope Core
    B. Improved Wide Rope Core
    C. Independent Wire Rope Core
    D. Independent Wide Rope Core
A

C. Independent Wire Rope Core

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5
Q

What are the total number of broken wires that can be visible in any eight diameter
lengths given a 3/4 inch, 6 x 19 IWRC wire rope sling before it must be removed?
A. 0
B. 6
C. 11
D. 19

A

C. 11 ( 6x19) 10%x114=11.4

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6
Q

Which type of material is suitable for a chain sling?
A. Carbon Steel 160
B. Structural Steel Grade 60
C. Improved Plow Steel Grade
D. Alloy Steel and identified by a letter “A” or the number “8” or a combination

A

D. Alloy Steel and identified by a letter “A” or the number “8” or a combination

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7
Q

Which type of sling material cannot be used where fumes, vapors, sprays, mists or liquids
of acids or phenolics are present?
A. Chain Sling
B. Wire Rope Sling
C. Nylon Web Sling
D. Natural Rope and Synthetic Fiber

A

C. Nylon Web Sling

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8
Q

Which type of sling material is best for abrasion and high temperature resistance?
A. Chain Sling
B. Wire Rope Sling
C. Nylon Web Sling
D. Natural Rope and Synthetic Fiber

A

A. Chain Sling

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9
Q

Which type of sling material may be used in a temperature range from minus 20 degrees
Fahrenheit to 180 degrees Fahrenheit?
A. Chain Sling
B. Wire Rope Sling
C. Nylon Web Sling
D. Natural Rope and Synthetic Fiber

A

D. Natural Rope and Synthetic Fiber

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10
Q

Which type of sling configuration is better suited for handling loose bundles of pipe or
rebar?
A. Bridle Hitch
B. Single Basket Hitch
C. Single Choker Hitch
D. Double Choker Hitch

A

D. Double Choker Hitch

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11
Q

What is the Rated Load Capacity for a hook that is ½ off center?
A. 70%
B. 80%
C. 86%
D. 100%

A

b 80%

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12
Q

Assume you are lifting 1000 pounds. What is the load in Pounds on each leg of two
legged sling if the horizontal sling angle is 45 degrees?
A. 500
B. 577
C. 707
D. 1000

A

C. 707

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13
Q

Using the OSHA Sling Tables Attached answer the following questions.
13. Given a single leg sling that is 3/4 inch in diameter, 6 x 19 construction, IWRC, used in a
choker hitch with a Mechanical Splice, what is the rated lifting capacity in Tons?
A. 3.3
B. 3.6
C. 3.9
D. 4.9

A

3.6

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14
Q

Given a load of 7500 pounds, you will lift using a Wire Rope Sling in a 2-legged Bridle
Hitch in a 60 degree horizontal angle using a 6 x 19 Improved Plow Steel Grade Rope
with Fiber Core, Hand Tucked. What is the minimum Wire Rope Diameter in Inches?
A. 3/8.
B. 7/16
C. 1/2
D. 9/16

A

9/16

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15
Q

Given a 3-legged Bridle Hitch in a 30 degree horizontal angle using a 3/4 inch 6 x 19
Construction Improved Plow Steel Grade Rope with an Independent Wire Rope Core
(IWRC) and connected using a Hand Tucked, what is the Lifting capacity in Tons?
A. 5.8
B. 6.3
C. 6.6
D. 6.8
E. 7.3
F. 10.0
G. 11.0
H. 13.

A

6.3

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16
Q

A scaffold must be capable of supporting its own weight and what is the minimum factor
or multiplier that must be applied to the maximum intended load to determine the
capacity?
A. 0
B. 1
C. 2
D. 4

A

D. 4 1926.451 a 1

17
Q

OSHA has grouped all scaffolds into two groups and has established certain criteria for
each group. What are the two groups of scaffolds?
A. Horizontal Scaffolds and Vertical Scaffolds
B. Supported Scaffolds and Suspended Scaffolds
C. Mandatory Scaffolds and Non-Mandatory Scaffolds
D. Required Scaffold Criteria and Not Required Scaffolds Criteria

A

B. Supported Scaffolds and Suspended Scaffolds

18
Q

On scaffolds where platforms are overlapped to create a long platform, the lap shall occur
only over supports. What is the minimum lap in inches if they are not nailed?
A. 3
B. 6
C. 9
D. 12

A

D. 12 1926.451 b 7

19
Q

What is the minimum height to base ratio which requires guying, tying, bracing?
A. 1:1
B. 2:1
C. 3:1
D. 4:1

A

D. 4:1 1926.451

20
Q

What is the maximum vertical tie-in distance range in feet for scaffolds that exceed the
height to base ratio?
A. 20 - 26
B. 30 - 36
C. 40 - 46
D. 50 - 56

A

A. 20 - 26 1926 c l ii

21
Q

What is the maximum horizontal tie-in distance in feet for scaffolds that exceed the
height to base ratio?
A. 30
B. 35
C. 50
D. 75

A

A 30 1926.451 c l iii

22
Q

What of the following scaffold descriptions describes an independent pole scaffolding?
A. A supported scaffolding consisting of a platform(s) resting on bearers supported
by ledgers and a double row of uprights without any support from any structure
B. A supported or suspended scaffold consisting of a platform(s) supported by
tubing, erected by coupler devices connecting uprights, braces, bearers, & runners
C. A supported scaffolding of a platform resting on thrustouts projecting beyond the
wall or face of the building or structure, the inboard ends secured to inside the
building or structure
D. A supported scaffolding consisting of a platform(s) resting on bearers, the outside
bearers ends supported on runners secured to a single row of uprights, and the
inner bearer ends supported on or in a structure or building wall

A

A. A supported scaffolding consisting of a platform(s) resting on bearers supported
by ledgers and a double row of uprights without any support from any structure

23
Q

At each end of a platform, what is the maximum extension range in inches for extending
the platform beyond its support?
A. 12 - 18
B. 19 - 24
C. 25 - 31
D. 32 - 36

A

A. 12 - 18 1926.451 b 5 i & ii

24
Q

What is the rated load capacity for a Medium-duty scaffold?
A. 25 pounds per square foot applied uniformly over the entire span area
B. 50 pounds per square foot applied uniformly over the entire span area
C. 75 pounds per square foot applied uniformly over the entire span area
D. 250 pounds placed 18 inches to the left and right of the center of the span

A

B. 50 pounds per square foot applied uniformly over the entire span area

25
Q

Using an Independent Wood Pole Scaffold for a Medium-Duty Rating, what is the size of
the poles and the maximum on-center longitudinal pole spacing?
A. 2 x 4 inches, spaced 6 feet on-center.
B. 4 x 4 inches, spaced 8 feet on-center.
C. 4 x 4 inches, spaced 10 feet on-center.
D. Nominal 2 inch OD steel, spaced 4 feet x 7 feet

A

B. 4 x 4 inches, spaced 8 feet on-center

26
Q

Using an Independent Wood Pole Scaffold for a Medium-Duty Rating, what is the
maximum traverse pole spacing in feet?
A. 5
B. 6
C. 8
D. 10

A

c 8

27
Q

Using an Independent Wood Pole Scaffold for a Medium-Duty Rating, what is the
maximum vertical spacing of the horizontal members?
A. 5’ - 0”
B. 6’ - 0”
C. 6’ - 6”
D. 7’ - 0”

A

B. 6’ - 0”

28
Q

Using an Independent Wood Pole Scaffold for a Light-Duty Rating. What is the
maximum post spacing using a nominal 2 inch OD?
A. 4 feet x 7 feet.
B. 4 feet x 10 feet.
C. 6 feet x 6 feet.
D. 8 feet x 8 feet

A

B. 4 feet x 10 feet.

29
Q

What is the minimum ladder extension in feet above the point of contact?
A. 1
B. 2
C. 3
D. 8

A

C. 3

30
Q

What is the maximum height in feet before a Pole scaffold must be designed by a
Registered Professional Engineer?
A. 20
B. 50
C. 60
D. 125

A

c 60 1926.452 a 10

31
Q

What is the maximum height in feet before a Tube and Coupler scaffold must be designed
by a Registered Professional Engineer?
A. 25
B. 50
C. 75
D. 125

A

d 125 b 10

32
Q

What is the maximum height in feet before a Fabricated Frame scaffold must be designed
by a Registered Professional Engineer?
A. 25
B. 50
C. 75
D. 125

A

D. 125 c 6

33
Q

Given the following information concerning a Swing Stage Scaffold, the Load (L) is =
600 pounds, the load line to the fulcrum distance (X) = 2.5 feet, and the length of the
outrigger from the counterweight to the fulcrum point (Y) is 16 feet. What is the weight
(W) of the counter weight in pounds?
A. 94
B. 375
C. 500
D. 600

A

B. 375 w=4(600x2.5)/16’=6000/16=375lbs

34
Q

What is the maximum height in feet of a ladder jack platform?
A. 20
B. 30
C. 60
D. 125

A

a 20

35
Q

When free-standing Mobile (manual rolling scaffolding) scaffold towers are used, the
height shall not exceed how many times the minimum base dimension?
A. 2
B. 9
C. 45
D. 60

A

a 2 w 6 ii

36
Q

A Manual Rolling scaffolding has a base of 7’ x 9’. What is the maximum height in feet?
A. 14 Feet
B. 30 Feet
C. 60 Feet
D. 125 Feet

A

a 14 feet 2x7 feet = 14ft

37
Q

Using the Non-Mandatory Appendix A in Subpart L, and the Allowable Spans table, what
is the minimum nominal size planking in inches that can be used for scaffold planks?
A. 2 x 6
B. 2 x 8
C. 2 x 10
D. 2 x 12

A

C. 2 x 10

38
Q

Using a maximum loading for a medium duty scaffold, what is the maximum permissible
span in feet for a nominal plank 2 x 12?
A. 4
B. 6
C. 8
D. 10

A

b 6 it is on a table (span table

39
Q

The point of contact for your ladder is 16’ above the ground. What is the proper horizontal
distance in feet from the wall?
A. 03.33 Feet
B. 04.00 Feet
C. 12.00 Feet
D. 16.00 Feet

A

B. 04.00 Feet

Cm 485 (20 decks)

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