Enviromental Control 2
AUTOTEST 3
 
 

1. Enumerate 5 safety rules during installation
 
 a)
 b)
 c)
 d)
 e)

2. What effect causes an electrical current of more than 100 mA on body?
 
 

3. Enumerate 5 safety rules when installing temporary wiring.
 
 a)
 b)
 c)
 d)
 e)

4. The structural metal frame of a building shall not be used as the required equipment grounding conductor for AC equipment.

 a) True  b) False

5. At the main service entrance, the neutral and ground conductors shall be connected together.

 a) True  b) False

6. When making an installation with PVC pipe it is not necessary to run a ground wire.

 a) True  b) False

7. An aluminum ladder should not be used when working around electrical wiring.

 a) True  b) False

8. When using a 2/0 copper wire in the service entrance, the grounding electrode conductor should be __________.

9. The minimum working clearance for a panel with a voltage to ground from 0 to 150 V can not be less than _____________ ft.

10. The largest grounding electrode conductor required for any size service is __________.

11. A 2500 sq. ft house has installed the following equipment:

 Equipment    Power

 Range     10 kw
 Garbage Disposal    0.8 kw
 Dryer     4.5 kw
 Water heater    5 kw
 AC unit     10 kw

 Calculate the necessary service entrance.