What is the primary purpose of a Nationally Recognized Testing Laboratory (NRTL)?
a. To test installation procedures
b. To test and price products for electricians
c. To test new products for their compliance with established standards
d. To develop product standards for electrical manufacturers
c. To test new products for their compliance with established standards
You might also like to view...
____ finishes are used to alter surface appearances of aluminum products.
A. Chemical B. Natural C. Anodic D. Mechanical
While multisplit units are limited to a single outdoor unit, large VRF systems can combine as many as ________ outdoor units manifolded together to increase overall system capacity
A) five B) four C) three D) two
Most codes require procedure qualification on any joint, base metal, and process regardless of how many other companies may have qualified similar procedures
Indicate whether the statement is true or false
Which of the following is true of the current in a capacitive circuit?
a. It leads the voltage. b. It lags the voltage. c. It is the same as the voltage. d. It counteracts the voltage.