Name: 
 

Chapter 9



True/False
Indicate whether the statement is true or false.
 

 1. 

All workers on a scaffold must wear hard hats.
 

 2. 

In a metal scaffold, cross braces may be used as a means of access or egress.
 

 3. 

The loads exerted onto the legs of a scaffold are equal.
 

 4. 

Workers must know the capacity of scaffolds they are erecting and using.
 

 5. 

You should never work above the second step from the top of a stepladder.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 6. 

According to the U.S. Occupational Safety and Health Administration (OSHA), employers are required to have a ____ to supervise and direct scaffold erection.
a.
municipal inspector
c.
project manager
b.
competent person
d.
state overseer
 

 7. 

In a metal scaffold, ____ rigidly connect one scaffold member to another member.
a.
baseplates
c.
cross braces
b.
mud sills
d.
end frames
 

 8. 

Guardrails are installed on all open sides and ends of scaffolds that are more than ____ feet in height.
a.
4
c.
8
b.
6
d.
10
 

 9. 

If workers are on different levels of a scaffold, ____ must be installed as an overhead protection for lower-level workers.
a.
guard planks
c.
toeboards
b.
screwjacks
d.
cross frames
 

 10. 

A rest platform is required for every ____ feet of ladder used for access onto a metal scaffold.
a.
10
c.
25
b.
15
d.
35
 

 11. 

All scaffolds and their components must be capable of supporting, without failure, their own weight and at least ____ times the maximum intended load applied or transmitted to them.
a.
four
c.
six
b.
five
d.
seven
 

 12. 

The capacity of the top horizontal member of a scaffold’s end frame, called the ____, may never be exceeded.
a.
bearer
c.
cribbing
b.
gooser brace
d.
hoist
 

 13. 

For scaffolds greater than 3 feet wide, the vertical locations of horizontal members are repeated every ____ feet.
a.
13
c.
36
b.
26
d.
46
 

 14. 

Scaffold ____ must be at least 18 inches wide with a guardrail system in place.
a.
baseplates
c.
platforms
b.
mud sills
d.
cribbing
 

 15. 

When fully loaded with personnel, tools, and material, the wood plank used to make a scaffold platform must never deflect more than 1/60th of its ____.
a.
span
c.
width
b.
height
d.
cribbing length
 

 16. 

Two of the most common wood species used for scaffold planks are southern yellow pine and ____.
a.
Ponderosa pine
c.
Atlas cedar
b.
Western hemlock
d.
Douglas fir
 

 17. 

____-duty scaffolds are designed at 75 pounds per square foot.
a.
Light
c.
Heavy
b.
Medium
d.
Standard
 

 18. 

Means of access onto a scaffold include a hook-on or attachable ladder, a ramp, or a(n) ____ and are determined by the competent person on the job.
a.
stair tower
c.
adjacent scaffold
b.
stack of concrete blocks
d.
earthen mound
 

 19. 

A typical personal fall protection system consists of five related parts: the harness, lanyard, lifeline, rope grab, and ____.
a.
guard
c.
hoist
b.
anchor
d.
ligature
 

 20. 

The rolling tower, or ____ scaffold, is widely used for small jobs, generally not more than 20 feet in height.
a.
jackleg
c.
mobile
b.
provisional
d.
temporary
 

 21. 

If the frame sections are 5 ´ 7, a rolling tower can be only ____ feet high.
a.
5
c.
15
b.
10
d.
20
 

 22. 

Pump jack scaffolds are used widely for ____, where staging must be kept away from the walls, and when a steady working height is desired.
a.
roofing
c.
framing
b.
siding
d.
partitioning
 

 23. 

Roofing brackets are made of ____.
a.
plywood
c.
metal
b.
plastic
d.
particle board
 

 24. 

Ladder ____ are metal brackets installed on ladders to hold scaffold plank.
a.
jacks
c.
leaves
b.
extensions
d.
addendums
 

 25. 

____ support material that is being laid out or cut to size.
a.
Stepladders
c.
Sawhorses
b.
Job-made ladders
d.
Pommel horses
 



 
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