Name: 
 

Chapter 4



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

 1. 

The base of a ladder should be 1 foot away from the vertical surface against which it is placed for every __________ feet in height.
a.
2
b.
3
c.
4
d.
5
 

 2. 

A __________ is a mechanism that attaches to a vertical pole and can be pumped up and down the pole. It is used to support planks on which workers stand.
a.
fabricated frame scaffold
b.
portable ladder
c.
modular frame scaffold
d.
pump jack
 

 3. 

Employees must be able to safely access any level of scaffold that is __________ feet above or below an access point.
a.
2
b.
3
c.
4
d.
5
 

 4. 

Fall protection must be provided for workers on scaffolds when they are __________ feet or more above a lower level.
a.
6
b.
10
c.
12
d.
15
 

 5. 

A Type I Heavy Duty ladder is rated for __________ pounds
a.
225
b.
250
c.
300
d.
350
 

 6. 

When working on a ladder and reaching to the side, never let your __________ pass beyond either ladder rail.
a.
belt buckle
b.
hip
c.
shirt pocket
d.
head
 

 7. 

When working with gasoline and diesel fuel, a Class __________ fire extinguisher should be on hand.
a.
A
b.
B
c.
C
d.
D
 

 8. 

The air pressure used for pneumatic tools is typically about __________ psi.
a.
50
b.
100
c.
150
d.
200
 

 9. 

When using ladders near electrical equipment, ladders made of __________ should be used.
a.
wood
b.
aluminum
c.
fiberglass
d.
Either A or C
 

 10. 

The force that causes electric current to move through a conductor is called __________.
a.
amperes
b.
watts
c.
ohms
d.
volts
 

 11. 

If a ladder is placed against a wall that is 28 feet high, the base of the ladder should be __________ feet away from the wall.
a.
4
b.
7
c.
10
d.
14
 

 12. 

The most common type of scaffolding used in the construction industry is the __________.
a.
pump jack
b.
fabricated frame
c.
moveable
d.
adjustable
 

 13. 

The number one scaffold hazard is __________.
a.
slipping
b.
falls
c.
being struck by a falling object
d.
planking giving way
 

Completion
Complete each statement.
 

 14. 

A(n) ____________________ person is one who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, dangerous, or hazardous to employees and who has the authority to take corrective measures to eliminate them.
 

 

 15. 

Before working on any engine or attached machinery the ____________________ wire should be removed.
 

 

Short Answer
 

 16. 

Explain what a yellow tag on a scaffold means.
 

 17. 

Explain what is the highest safe standing level on a portable ladder.
 

 18. 

List the hazards that are associated with internal combustion engines.
 

 19. 

Explain who OSHA requires to build scaffolding.
 

 20. 

Explain what a red tag means when it is attached to a scaffolding.
 



 
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