Free C7 Low Voltage Systems Exam

Welcome to your free C-7 Low Voltage Systems Quiz

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1. 
What type of cable may be buried underground?

2. 
Which of the following is designed to protect the user from shock?

3. 
Power tools and electrical equipment must be grounded. Double-insulated power tools__________.

4. 
What do the following tools have in common: drills, tappers, fastener drivers, grinders, disc and belt sanders, saber saws, circular saws, and chain saws?

5. 
A thermostat should be mounted approximately__________ from floor level.

6. 
Which of the following statements is not correct concerning the installation of a thermostat?

7. 
According to the NEC, the minimum cover for direct buried cables or conductors is__________.

8. 
According to the NEC, the minimum cover for rigid nonmetallic conduit is__________.

9. 
According to the NEC, the maximum distance between supports in straight runs of EMT (electrical metallic tubing) is__________.

10. 
According to the NEC, nonmetallic sheathed cable (Type NM or NMC) must be secured at intervals no greater than:__________.