TUTOR AND MENTOR

With the condensing pressure and compressor speed remaining constant, a decrease in suction pressure will cause a(n): a. Decrease in compressor capacity and decrease in current. b. Increase in compressor capacity and decrease in current. c. Increase in compressor capacity and increase in current. d. Decrease in compressor capacity and increase in current. - D An indication of non-condensable gas in a refrigeration system is significantly: a. Lower-than-normal suction pressures. b. higher-than-no...

1kwh of electric power is equivalent to ___ btu per hour. A. 3142 B. 6412 C. 9412 D. 6812 - A Gas valves operate at ____ voltage. A. 120v B. 230v C. 24v D. 12v - 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 - D Furnaces are placed into categories based upon. A. Venting characteristics B. Btuh capacity range C. Total airflow in CFM D. Gas valve type - A An oil separator is locat...

The Fahrenheit scale is based on boiling water at sea level at what temperature? A: 459 degrees B: 212 degrees C: 180 degrees D: 100 degrees - B: 212 degrees Zero pounds gauge corresponds on the absolute scale to: A: 144 B: 212 C: 14.7 D: zero - C: 14.7 Hidden heat in refrigeration work is referred to as: A: Intensity of heat B: Latent heat C: Heat a thermometer can

Generally, vibration eliminators in piping should be installed: A: At a 45 degree angle B: At a 90 degree angle C: Perpendicular to the compressor crankshaft D: Parallel to the compressor crankshaft - D: Parallel to the compressor crankshaft If you purchased ten filter-driers for $100.00, what was the price of each filter-drier? A: $100.00 B: $10.00 C: $1.00 D: $1.10 - B: $10.00 Which of the following jobs requires safety glasses? A: Driving a vehicle B: Extending a ladder C: Brazing D: Pulling ...

Low airflow over a residential split system air conditioning evaporator can cause A: Liquid flood-back to the compressor B: A decrease in compression ratio C: An increase in suction line superheat D: Oil logging in the evaporator - A: Liquid flood-back to the compressor Which of the following is the correct sequence of work? A: Attach gauge manifold, recover refrigerant, replace filter core, evacuate the system, recharge the system. B: Recover refrigerant, evacuate the system, replace filter cor...

d (very important) - - 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) - - It is important to be ____ in filling out service orders so that office staff, other technicians, and customers will know what work you completed on the job. a. clear b. complete c. concise d. all of the above d (Refrigerant) - ...

With the condensing pressure and compressor speed remaining constant, a decrease in suction pressure will cause a(n): a. Decrease in compressor capacity and decrease in current. b. Increase in compressor capacity and decrease in current. c. Increase in compressor capacity and increase in current. d. Decrease in compressor capacity and increase in current. - D An indication of non-condensable gas in a refrigeration system is significantly: a. Lower-than-normal suction pressures. b. higher-than-no...

If the gas pedal becomes jammed, press hard on the gas pedal. correct answer: FALSE 2. All passing situations are the same. correct answer: FALSE 3. Which of the following expenses, increases with higher collision rates? correct answer: health and automobile insurance 4. Vehicle size and weight are important characteristics that influence crashworthiness. correct answer: TRUE 5. When sharing the roadway with a large truck, do not tailgate or pull out in front of them. correct answer: TRUE 6. To ...

Hydroplaning is best controlled when you speed up and make drastic control inputs. correct answer: False When you consider maintaining your car, you should check: correct answer: all of the above Developing appropriate attitudes depends on making a personal commitment to change attitudes that are unsafe. correct answer: True As the amount of alcohol you consume increases, your ability to safely drive: correct answer: decreases If you should add one second of following distance for each environme...

Only 1% of collisions are caused by driver Error. correct answer: False An Example of a 2 point violation is reckless driving. correct answer: True A First-Offense DUI can result in a six month suspension of your driver's license. correct answer: True Equipment failure, road design, and driving behavior can contribute in some collisions. correct answer: True ESC (electronic Stability Control) systems help drivers: correct answer: Stay on the road in emergency situations by automatically adjusti...