Carpentry & Building Construction © 2004

Safety Quizzes :

Self-Check Safety Quiz 10

Excavations, Barricades, and Demolition of Structures

Directions: Study safety sheets 3-8 through 3-10 from the Safety Guidebook for Carpentry & Building Construction, ISBN 0-07-825352-7. Then choose the letter of the answer that best completes the statement or answers the question.

1.
Which soil material makes soil most stable?
A)gravel
B)sand
C)loam
D)clay
2.
Which kind of excavation forms the soil into steps?
A)sloping
B)benching
C)shoring
D)bracing
3.
There is standing water in the excavation due to a rainstorm. Why is this situation a serious safety hazard?
A)The soil may be unstable and cave in.
B)The water may not evaporate.
C)The wall supports may get wet and warp.
D)The water may not be potable.
4.
You are placing tools and equipment for a job next to an excavation. What is the minimum distance from the edge you can place the items?
A)2 feet
B)10 feet
C)20 feet
D)40 feet
5.
Under what conditions should the air quality be tested in an excavation?
A)when the soil is not walled and has an odor
B)whenever you work in an excavation
C)when the site is on landfill or near hazardous material storage
D)when timbers are used to support the excavation walls
6.
What is placed in the area below scaffolds to keep people at a safe distance?
A)a ladder
B)shoring material
C)heavy equipment
D)a barricade
7.
Before a structure can be demolished, which action should occur first?
A)Shore up the walls.
B)Do an engineering survey.
C)Shut off the utilities.
D)Remove broken glass.
8.
Before demolition debris is dropped through holes in the floor, the area below must be
A)barricaded and have posted signs.
B)connected to a chute.
C)provided with a waste container unit.
D)accessible to a crane.
9.
When the mobile equipment operator does not have a clear view of the edge of an excavation, what should be done?
A)Adjust the side mirrors on the equipment.
B)Use small power tools instead.
C)Install barricades or warning signals.
D)Select another equipment operator.
10.
When working in an excavation near traffic, what extra protective equipment is recommended?
A)hard hat
B)warning vest
C)safety goggles
D)work boots
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