Free C46 Solar Exam

Welcome to your free C-46 Solar Exam

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1. 
What is the difference between THW and THW-2?

2. 
What is the maximum voltage for a storage battery in a residence?

3. 
Where is it prohibited to install a disconnect device for a photovoltaic system?

4. 
Which section of the Electrical Code contains the requirements for grounding?

5. 
If the job requires you to hoist equipment using 2 cranes, who would supervise the lift?

6. 
How does a C-46 contractor handle multiple DC inputs?

7. 
What is the name of a remote electrical system?

8. 
As the temperature of a PV module increases, what will happen to the voltage?

9. 
How should you walk on a roof with flat concrete tiles?

10. 
What is the maximum amount of lead allowed in solder used on piping for potable water systems?

11. 
What sort of PPE (personal protective equipment) is recommended when using cleaning solvent?

12. 
What should be done with lifelines, safety harnesses, and shock-absorbing lanyards that have been subjected to impact loading?

13. 
What is the longest standard length of a scaffold plank?

14. 
On a 120V circuit, what color is the (protective) ground wire?

15. 
What is the minimum distance apart that acetylene and oxygen cylinders must be stored?

16. 
Which of the following is a correct method for storing acetylene cylinders?

17. 
Which of the following is the best choice for hoisting a full gas cylinder?

18. 
Cylinders containing ______ shall not be taken into confined spaces.

19. 
A dry chemical or carbon dioxide fire extinguisher rated at least ______ must be kept near operations where bottled fuel gases are being used.

20. 
No more than ______ of paints, solvents, and chemicals may be stored in a room unless an approved safety storage cabinet is present.