Free C21 Building Moving & Demolition Exam

Welcome to your free C-21 Building Moving & Demolition Quiz

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1. 
According to the General Industry Safety Orders (GISO), electric blasting caps may be ignited __________ using with an electrical machine and power source.

2. 
Who do you need to notify 36 hours before moving a house across train tracks?

3. 
The presence of which of the following is required before an employer may permit a blasting operation to take place?

4. 
Explosive warning signs must be placed within __________ of magazines.

5. 
When a house is to be moved, who has the responsibility for verifying that utilities have been disconnected?

6. 
If wood guardrails are required to be installed on a demolition job, the railing must be made of what kind of wood?

7. 
What should be used when connecting a blasting cap to the detonating cord?

8. 
What is the maximum speed recommended when moving a house?

9. 
Smoking and open flames are prohibited within __________ of explosives.

10. 
Anchor bolts for foundation plates must be __________.