Hvac final exam accurate - Study guides, Class notes & Summaries

HVAC final exam, unit 14 Accurate 100%(GTo control ice build-up on a heat pump outdoor coil in the heating cycle, a ____ is attached to a large diaphragm. - ANSWER Microswitch The heater in the thermostat control circuit in the cooling mode is active when the - ANSWER Cooling contact is open If the suction pressure of a system is 60 psi and the oil pump is 85 psig, what is the net oil pressure? - ANSWER 25 psig What is meant by the term "detent" ? - ANSWER opening or closing of a cont...

HVAC final exam, unit 14 Accurate Questions & Answers. When a water regulating valve is used to control the head pressure of a water-cooled system, the valve's spring is acting against which pressure to modulate the water flow? - ANSWER Head pressure of the system To prove that the combustion blower motor is operating before ignition, a ______ would be used. - ANSWER Sail switch The difference between system overshoot and system lag is called? - ANSWER Temperature swing The purpose ...

HVAC Electrical Final Test Exam With 100% Correct Answers 2024 Split-phase motor PSC CSCR Shaded pole motor Resistance reading to ground from the terminal of a good compressor CSR Best starting and running single-phase compressor - answerA. Uses a start and run winding B. Uses a run capacitor C. Uses a run capacitor, start capacitor, and potential relay D. Simplest motor E. 3 megohms F.Only uses a start capacitor G. CSCR motor How much resistance will be measured in a circuit with...

NCCER Module 2 Exam Questions and Answers 100% pass An estimator is preparing a bid for a home remodeling project. She has determined that the new garage needs 324 feet of 2x10 lumber; the new rec room requires 430 feet; and the new upstairs bonus room needs 283 feet. How many feet of 2x10 lumber will be needed? - Answer- 1,037 feet A plumbing contractor bid the rough-in work for a new three story office building based an estimate of 850 hours of a journey-level plumber's time on the job....

HVAC Controls Unit 14 Final Exam 2024. If a mercury bulb thermostat is not mounted perfectly level, there will be a large difference between the actual room temperature and the thermostat's set point. - CORRECT ANSWER The correct answer is 'True'. Line voltage thermostats have heavier contacts and use which type of sensing element? - CORRECT ANSWER The correct answer is: all of the above a. bimetal b. bellows c. remote bulb The best type of switch to detect air movement is...

HVAC final exam unit 11 complete solutions To check the temperature leads of an electronic thermometer for low temperature, they should be stirred in a container of Crushed ice and pure water Ohm's law is represented with the formula I=E/R A device commonly used for detecting refrigerant leaks is a(n) Halide torch Three reference points for checking temperature measuring instruments are 32, 98, 212 degrees If the ammeter is off by more than _____% it should be sent to the repair sho...

NCCER Module 2 Exam Questions and Answers 100% pass An estimator is preparing a bid for a home remodeling project. She has determined that the new garage needs 324 feet of 2x10 lumber; the new rec room requires 430 feet; and the new upstairs bonus room needs 283 feet. How many feet of 2x10 lumber will be needed? - Answer- 1,037 feet A plumbing contractor bid the rough-in work for a new three story office building based an estimate of 850 hours of a journey-level plumber's time on the job....

NCCER Module 2 Exam Questions and Answers 100% pass An estimator is preparing a bid for a home remodeling project. She has determined that the new garage needs 324 feet of 2x10 lumber; the new rec room requires 430 feet; and the new upstairs bonus room needs 283 feet. How many feet of 2x10 lumber will be needed? - Answer- 1,037 feet A plumbing contractor bid the rough-in work for a new three story office building based an estimate of 850 hours of a journey-level plumber's time on the job....

An ampere is - ANSWER A measure of the quality of electrons flowing past a point in the electrical circuit in a given time What part of an atom moves from one atom to another? - ANSWER electron An element in an electric heating unit is applied to a 232-volt power supply. The current flow through the element

HVAC final exam unit 14 verified answers When a water regulating valve is used to control the head pressure of a water-cooled system, the valve's spring is acting against which pressure to modulate the water flow? ️Head pressure of the system To prove that the combustion blower motor is operating before ignition, a ______ would be used. ️Sail switch The difference between system overshoot and system lag is called? ️Temperature swing The purpose of a heat anticipator is to_____...