Question

when youre using a threaded pulling elbow with emt, which of the following types of fittings must be used to fasten the conduit to the elbow?
a) drive strap
b) connector
c) bushing
d) coupling
question 2 (5 points)
which one of the following organizations tests electrical equipment for compliance with accepted standards?
a) underwriters laboratories, inc.
b) the national electrical manufacturers association
c) the national fire prevention association

Explanation:

• Question 1: When using a threaded pulling elbow with EMT (Electrical Metallic Tubing), a coupling is used to fasten the conduit to the elbow. A coupling is a fitting that connects two pieces of conduit. A drive strap is used for securing conduit to a surface, a connector is more general for connecting different components (not specifically for this conduit - elbow fastening in this context), and a bushing is used to protect wires from the sharp edges of the conduit opening.
• Question 2: Underwriters Laboratories, Inc. (UL) is well - known for testing electrical equipment to ensure compliance with accepted safety and performance standards. The National Electrical Manufacturers Association (NEMA) focuses more on standards for electrical manufacturing and product specifications. The National Fire Prevention Association (NFPA) develops codes and standards related to fire prevention and safety, not specifically testing electrical equipment for compliance in the same way as UL.

Answer:

1. D) Coupling
2. A) Underwriters Laboratories, Inc.