C-21 Building Moving & Demolition Quiz

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

1. 
If wind speed is so great that the structure being moved swerves from side to side, what action should the contractor take?

2. 
For fire protection on roadways between and around combustible storage piles, what is the minimum number of feet that must be maintained free from accumulation of rubbish, equipment, or other materials?

3. 
What reference material must the contractor have knowledge of to review reports identifying hazardous materials, lead, and asbestos?

4. 
Which of the following is safest when you are finished with a power tool?

5. 
With what color paint does Underground Service Alert (USA) require the contractor to mark where he/she will dig?

6. 
Why is broken concrete with rebar dangerous during demolition projects?

7. 
Whom must you notify 36 hours before moving a house across train tracks?

8. 
What sort of PPE (personal protective equipment) is recommended when using cleaning solvent?

9. 
What should be done with lifelines, safety harnesses, and shock-absorbing lanyards that have been subjected to impact loading?

10. 
What is the longest standard length of a scaffold plank?

11. 
On a 120V circuit, what color is the (protective) ground wire?

12. 
What is the minimum distance apart that acetylene and oxygen cylinders must be stored?

13. 
Which of the following is a correct method for storing acetylene cylinders?

14. 
For equipment rated 1200 amperes or more and over 6 feet wide that contain overcurrent devices, there shall be one entrance to and egress from the required working space not less than __________ inches wide and __________ feet high at each end of the working space.

15. 
For required disconnecting means for a fluorescent luminaire, which of the following statements is true?

16. 
What is the demand factor applied in calculating feeder or service conductor load for a commercial kitchen having four electrical ovens?

17. 
What is the minimum size THWN branch circuit conductor required for a 20 HP, 480-volt, 3 Phase Induction type squirrel cage motor with nameplate FLI of 26.5 amps?