8. NATE Industry Competency Exam: Commercial Refrigeration/6. NATE Industry Competency Exam: Oil Furnaces/NATE Industry Competency Exam: Core/NATE Industry Competency Exam: Gas Furnaces/NATE Industry Competency Exam: Heat Pumps/NATE Industry Competency Ex

On a new oil furnace installation, the oil pump pressure is found to be 50 PSI. which of the following actions should be taken? a. Increase the pump pressure. b. Add a new fuel filter. c. Reduce the pump pressure. d. No action needed. - Answer- A After installation and 20 min. of run time a...

A particular cleaning solution is made by mixing a liquid cleaning concentrate with water. The instructions specify mixing 1 quart of concentrate with 14 quarts of water. A technician wishes to prepare 60 quarts of mixed cleaning solution. How many quarts of cleaning concentrate will be needed? a...

Which of the following is one of the prime safety concerns in positioning a gas furnace for installation? a. An adequate gas supply. b. The availability of flue within 2 feet of the appliance. c. Clearance from combustible materials. d. Distance from circuit breaker. - Answer- C The dischar...

A correct statement regarding the outdoor coil of a heat pump is that damage may result if the: a. Indoor blower fails to operate. b. Defrost water does not drain from the coil. c. Indoor check valve sticks. d. Outdoor metering device sticks open. - Answer- B If this unit is installed on 20...

After a vacuum pump has been used, a continuous pressure rise in the system most likely indicates the: a. Presence of moisture. b. Existence of a leak. c. Presence of residual refrigerant. d. Presence of non-condensable gasses. - Answer- B After a vacuum has been pulled to 500 microns, a pr...

After a vacuum pump has been used, a continuous pressure rise in the system most likely indicates the: a. Presence of moisture. b. Existence of a leak. c. Presence of residual refrigerant. d. Presence of non-condensable gasses. - Answer- B After a vacuum has been pulled to 500 microns, a pr...

d (very important) - Answer- The ability to utilize all types of communication skills is ____ to the HVACR technician. a. not as important as "hands-on" technical skills b. somewhat important c. unimportant d. very important d (all of the above: clear, complete, concise) - Answer- It is i...