NOTE: All questions are written and reviewed by licensed contractors who are actively working in the field.
The following questions are typical of the kind of items that are on the examination.
The correct answer is highlighted.
- Which of the following valves would open to relieve internal pressure in a vessel?
- a. stop valve
- b. check valve
- c. T & P valve
- d. pressure reducing valve
- At what current do thermal control sensors typically operate?
- a. high amps
- b. high voltage
- c. milliamps
- d. low voltage
- What does the NEC require in a 120 v residential electrical circuit located in a garage?
- a. branch circuit
- b. lightning protection
- c. disconnect switch
- d. circuit protection