Core Examination 50 Questions with Correct Answers

Core Examination 50 Questions with
Correct Answers


The material that is used over roof beams or rafters as a base for the roofing is called:

A. flashing

B. sheathing

C. fascia


D. baseboard - ANSWER✔✔-B. Sheathing


If one end of a copper tube is heating, the other end will soon become very hot also. The heat

moves from one end to the other by:

A. conduction

B. convection

C. air movement within the tube


D. wave energy - ANSWER✔✔-A. conduction


Before beginning any electrical checkout procedure, what steps must always be taken after the

equipment disconnect or circuit breaker has been turned off?

A. Ensure you are always properly grounded


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, B. Check for the presence of voltage

C. Check resistance to ground


D. Replace the defective equipment - ANSWER✔✔-B. Check the presence of voltage


To properly test the accuracy of a thermometer, it should be immersed in:

A. a thermometer well

B. a saltwater and ice bath

C. a water and ice bath


D. water with a second thermometer - ANSWER✔✔-C. a water and ice bath


When measuring temperature rise, why is it important to factor in radiant heat?

A. it increases the value

B. it increases the latent change

C. it decreases the value


D. it decreases the latent change - ANSWER✔✔-A. It increases the value


When making a flare, the height of the tubing above the flaring block is critical because a flare with

too much starting height will:

A. loosen over time

B. slip through the flare nut

C. not fit in the flare nut




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