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MCC HVAC MIDTERM EXAM QUESTIONS AND ANSWERS 100% PASS
MCC HVAC MIDTERM EXAM QUESTIONS AND ANSWERS 100% PASS List at least five factors that must be controlled if a comfortable indoor environment is to be maintained. - Correct Answer ️️ -The factors that must be controlled include temperature, humidity, air motion, dust, bacteria, odors, toxic gases, and ionization. ((Ref: 1/1)) Describe in simple terms the basic process by which a refrigerant transfers heat energy. - Correct Answer ️️ -A refrigerant is used to transfer heat when it c...
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MCC HVAC MIDTERM EXAM QUESTIONS AND ANSWERS 100% PASS List at least five factors that must be controlled if a comfortable indoor environment is to be maintained. - Correct Answer ️️ -The factors that must be controlled include temperature, humidity, air motion, dust, bacteria, odors, toxic gases, and ionization. ((Ref: 1/1)) Describe in simple terms the basic process by which a refrigerant transfers heat energy. - Correct Answer ️️ -A refrigerant is used to transfer heat when it c...
Hvac Employment readiness Exam Questions and Answers 100% Pass
Hvac Employment readiness Exam Questions and Answers 100% Pass Sensible Heat - Correct Answer ️️ -Causes a change of temperature in a substance. Latent heat - Correct Answer ️️ -Heat added to a substance without a rise in temperature. Superheat - Correct Answer ️️ -Heat added to the refrigerant in the vapor state after the evaporator process. How does a scroll compressor work? - Correct Answer ️️ -By means of Involute spirals Convection - Correct Answer ️️ -The moveme...
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Hvac Employment readiness Exam Questions and Answers 100% Pass Sensible Heat - Correct Answer ️️ -Causes a change of temperature in a substance. Latent heat - Correct Answer ️️ -Heat added to a substance without a rise in temperature. Superheat - Correct Answer ️️ -Heat added to the refrigerant in the vapor state after the evaporator process. How does a scroll compressor work? - Correct Answer ️️ -By means of Involute spirals Convection - Correct Answer ️️ -The moveme...
HVAC Final Exam Electrical For Air Conditioning Questions and Answers 100% Pass
HVAC Final Exam Electrical For Air Conditioning Questions and Answers 100% Pass When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? Select one: a. When using a single transformer system b. When heating with an oil boiler c. When heating with a gas boiler d. When using a two transformer system - Correct Answer ️️ -A) When Using a single transformer system Digital thermostats usually display temperature, time of day, programming an...
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HVAC Final Exam Electrical For Air Conditioning Questions and Answers 100% Pass When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? Select one: a. When using a single transformer system b. When heating with an oil boiler c. When heating with a gas boiler d. When using a two transformer system - Correct Answer ️️ -A) When Using a single transformer system Digital thermostats usually display temperature, time of day, programming an...
HVAC Contractor Test 1 100% Correct Solved
HVAC Contractor Test 1 100% Correct Solved An air conditioning and refrigeration contracting company must notify the department of all licensees who have assigned their licenses to the company and must notify the department within how many calendar days when any license whose license is assigned to the company has left the company - Correct Answer ️️ -30 calendar days within ___ hours after a death of any employee as a result of a work related incident, you must report the fatality to ...
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HVAC Contractor Test 1 100% Correct Solved An air conditioning and refrigeration contracting company must notify the department of all licensees who have assigned their licenses to the company and must notify the department within how many calendar days when any license whose license is assigned to the company has left the company - Correct Answer ️️ -30 calendar days within ___ hours after a death of any employee as a result of a work related incident, you must report the fatality to ...
Hvac Journeyman Exam Questions and Answers 100% Pass
Hvac Journeyman Exam Questions and Answers 100% Pass Defects on gas piping or fittings shall be _____.(A) repaired(B) replaced or repaired and retested(C) repaired by a certified welder(D) ignored, as the operating pressure is much less than the air test. - Correct Answer ️️ -B. Fitting shall be replaced or repaired and retested. UMC Section 1316.4.3 Every absorption refrigerating system supported from the ground shall rest on a concrete slab extending not less than _____ the adjoinin...
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Hvac Journeyman Exam Questions and Answers 100% Pass Defects on gas piping or fittings shall be _____.(A) repaired(B) replaced or repaired and retested(C) repaired by a certified welder(D) ignored, as the operating pressure is much less than the air test. - Correct Answer ️️ -B. Fitting shall be replaced or repaired and retested. UMC Section 1316.4.3 Every absorption refrigerating system supported from the ground shall rest on a concrete slab extending not less than _____ the adjoinin...
HVAC S.T.A.R EXAM QUESTIONS AND ANSWERS 100% PASS
Firestats located in the air stream of air handling units: - Correct Answer ️️ -A. Partially Correct: Are required in both the supply and return air streams B. Partially Correct: Should be the manual reset type C. Partially Correct: Should be nonadjustable A sleeve bearing would typically be used in a motor that: - Correct Answer ️️ - Operates with a light load and where noise is a factor. A bearing used on the bottom of a motor where the shaft is positioned vertically is called a...
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Firestats located in the air stream of air handling units: - Correct Answer ️️ -A. Partially Correct: Are required in both the supply and return air streams B. Partially Correct: Should be the manual reset type C. Partially Correct: Should be nonadjustable A sleeve bearing would typically be used in a motor that: - Correct Answer ️️ - Operates with a light load and where noise is a factor. A bearing used on the bottom of a motor where the shaft is positioned vertically is called a...
HVAC Study Guide with 100% Complete Solutions
HVAC Study Guide with 100% Complete Solutions Why is IAQ important? a) to provide a comfortable environment for occupants b) to provide enough oxygen for occupants c) to provide the right temperature for a productive environment for occupants d) to provide sufficient airflow for occupants e) to provide a healthy environment for occupants - Correct Answer ️️ -e) to provide a healthy environment for occupants What is not considered a contaminate? a) Carbon Dioxide b) Ozone c) Carbon...
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HVAC Study Guide with 100% Complete Solutions Why is IAQ important? a) to provide a comfortable environment for occupants b) to provide enough oxygen for occupants c) to provide the right temperature for a productive environment for occupants d) to provide sufficient airflow for occupants e) to provide a healthy environment for occupants - Correct Answer ️️ -e) to provide a healthy environment for occupants What is not considered a contaminate? a) Carbon Dioxide b) Ozone c) Carbon...
HVAC CONTRACTOR EXAM QUESTIONS AND ANSWERS 100% PASS
HVAC CONTRACTOR EXAM QUESTIONS AND ANSWERS 100% PASS An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter - Correct Answer ️️ -voltmeter This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and control superheat A. automatic expansion valve B. thermostatic expansion valve C. low side float D. schraeder valve - Correct Answer ️️ -the...
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HVAC CONTRACTOR EXAM QUESTIONS AND ANSWERS 100% PASS An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter - Correct Answer ️️ -voltmeter This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and control superheat A. automatic expansion valve B. thermostatic expansion valve C. low side float D. schraeder valve - Correct Answer ️️ -the...
HVAC: EPA 608 Certification Study Guide with 100% Complete Solutions
HVAC: EPA 608 Certification Study Guide with 100% Complete Solutions Are there drop-in replacements for R-12 systems? Why or why not? - Correct Answer ️️ -No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and what oils will it mix with? - Correct Answer ️️ - Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - Correct Answer ️️ -Alkylbenzene lubric...
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HVAC: EPA 608 Certification Study Guide with 100% Complete Solutions Are there drop-in replacements for R-12 systems? Why or why not? - Correct Answer ️️ -No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and what oils will it mix with? - Correct Answer ️️ - Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - Correct Answer ️️ -Alkylbenzene lubric...
HVAC Certification Practice Tests 100% Correct Solved
HVAC Certification Practice Tests 100% Correct Solved Propane and Butane are _______ than air: - Correct Answer ️️ -Heavier What will be the resistance in the circuit if the supply voltage is 30V and current flowing through the circuit is 5A - Correct Answer ️️ -6 ohms Temperature at which oil starts to produce a waxy substance that may interfere with the refrigeration system - Correct Answer ️️ -Floc point What manifold gauge set is used to charge, evacuate, add oil and recove...
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HVAC Certification Practice Tests 100% Correct Solved Propane and Butane are _______ than air: - Correct Answer ️️ -Heavier What will be the resistance in the circuit if the supply voltage is 30V and current flowing through the circuit is 5A - Correct Answer ️️ -6 ohms Temperature at which oil starts to produce a waxy substance that may interfere with the refrigeration system - Correct Answer ️️ -Floc point What manifold gauge set is used to charge, evacuate, add oil and recove...
Earth Science Exam Review 2024 with Complete Solutions
Hondros Nursing 172 Exam 2 Questions and Answers 100% Pass
Oregon Pesticide Examination: Ornamental and Turf Herbicide Questions and Answers 100% Pass
Xcel Solutions Property & Casualty Exam Questions and Answers
INSY-3303 FINAL EXAM STUDY GUIDE WITH COMPLETE SOLUTIONS
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