Hvac exam questions Study guides, Class notes & Summaries

F80 Exam Questions and Answers Graded A After what date was the F-24 certificate of Fitness not recognized. July 31, 2014 How often must this certificate be renewed? Every 3 years In what types of buildings and occupancies are coordinators of fire safety and alarm systems in homeless shelter required? Homeless shelters, one-way voice communication systems, or occupied for more tha n fifteen persons for a period of more than 30 days. What is the certificate of occupancy? Determines the number ...

ASD Exam Questions With 100% Correct Answers 2023 Category 1 - Correct Answer-Category of Water that originates from sanitary water source (Clean) Catetroy 2 - Correct Answer-Category of Water that is contaminated; may cause discomfort or sickness (Grey) Category 3 - Correct Answer-Category of Water that is grossly contaminated; includes toxins, pathogens Special Situation - Correct Answer-Regulated or hazardous materials Class 1 - Correct Answer-Class of water that has least amount...

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HVAC EXAM QUESTIONS AND ANSWERS

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What happens when room temperature soda is poured into a glass of ice ? - Answer-The ice melts because it is absorbing heat from the soda . The compressor in a refrigeration system - Answer-pumps the refrigerant throughout the system To control ice build - up on a heat pump outdoor coil in the heating cycle a ______ is used . - Answer-pressure differential switch The total pressure of a confined mixture of gases is the sum of the pressures of each of the gases in the mixture . This is k...

Electricity for HVAC Exam Questions and Answers All Correct What does NEC stand for? - Answer-National Electric Code What is Ampacity? - Answer-The current carrying capacity of wire or cable expressed in amperes or amps. What is EMF? - Answer-Electromotive Force (volts) What is Amperage? - Answer-The measurement of electrical flow in a conductor. You check volts in parallel or series? - Answer-parallel You check amps in parallel or series? - Answer-series What is Voltage? - An...

HVAC Excellence - ELECTRICITY Exam Questions and Answers Already Passed Current flow is: The flow of electrons in the circuit. Impedance is: Opposition to alternating current flow. Like charges; repel each other. Any material that will readily release electrons is called; A conductor The symbol for current is; I Which of the following materials would be best suited for use as a semi-conductor? silicon The safety ground conductor is usually color coded; green or bare. An ...

HVAC EXAM QUESTIONS AND ANSWERS