Hvac 108 - Study guides, Class notes & Summaries

Combustion air for an oil burner is provided by_____. correct answersa combustion air fan The output of the ignition transformer is_____. correct answers10,000 volts The primary control starts burner operation in response to a signal from the_____. correct answersroom thermostat When replacing an oil burner nozzle, always use a(n)_____. correct answersnozzle wrench

Combustion air for an oil burner is provided​ by_____. - ANSWER-a combustion air fan The output of the ignition transformer​ is_____. - ANSWER-10,000 volts The primary control starts burner operation in response to a signal from​ the_____. - ANSWER-room thermostat When replacing an oil burner​ nozzle, always use​ a(n)_____. - ANSWER-nozzle wrench When doing a smoke spot test on a heavy​ boiler, an acceptable smoke spot number​ is_____. - ANSWER-two When reviewing the...

The primary control starts burner operation in response to a signal from​ the_____. - ANSWER-room thermostat When replacing an oil burner​ nozzle, always use​ a(n)_____. - ANSWER-nozzle wrench When doing a smoke spot test on a heavy​ boiler, an acceptable smoke spot number​ is_____. - ANSWER-two When reviewing the results of a combustion efficiency test for a furnace with a flame retention​ burner, the oxygen level should be​ _____. - ANSWER-3 to 5 percent In the presen...

What would be the most appropriate means for the contractor to communicate to the project owner an unforeseen condition not identified in the soils report? A. Document the issue in the job diary B. Issue a jobsite memorandum C. Draft a construction report D. Write a formal business letter - ANSWER-D. Write a formal business letter When is the best time to distribute the working agenda to the participants of a meeting? A. As a follow-up to the meeting B. At the beginning of the meeting ...

1 AIC EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ . What percentage of conversations do listeners remember of what they hear? A. 10% B. 30% C. 50% D. 90% Correct Answer: 10% What percentage of conversations do speakers remember of what they say and do? A. 30% B. 50% C. 70% D. 90% Correct Answer: 90% 2 When giving presentations, people should do which of the following? A. present extra information beyond their primary goal to demonstrate their expe...

1kwh of electric power is equivalent to ___ btu per hour. A. 3142 B. 6412 C. 9412 D. 6812 - ANSWER-A Gas valves operate at ____ voltage. A. 120v B. 230v C. 24v D. 12v - ANSWER-C What will be the resistance in the circuit if the supply voltage is 30v and current flowing through the circuit is 5A. A. 3 ohms B. 1/3 ohms C. 1/6 ohms D. 6 ohms - ANSWER-D Furnaces are placed into categories based upon. A. Venting characteristics B. Btuh capacity range C. Total airflow i...

Electrical PE Exam Completed with Correct Answers Electrical PE Exam Completed with Correct Answers 1. Inductor impedance equation Z = jwL 2. How can a transformer, motor, or generator be saturated? The voltage/frequency ratio is altered. For example, this happens when excessive voltage is applied to the primary side or the frequency is too low. 3. What are some sources of triplen harmonics? Electronics, CFL lamps, electronics dimmers, etc. 4. What are the effects of triplen harmonic...