Gas valves operate at Study guides, Class notes & Summaries
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NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update
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NATE Gas Heating Exam Verified 
Questions and answers 2023 
Latest Update 
Since 1992, the United States Department of Energy has required that all furnaces sold 
and installed from that date on must have an AFUE of no less than: 
A: 70% 
B: 75% 
C: 78% 
D: 80% - correct answer C: 78% 
Many pre-1992 furnaces have efficiencies around . 
A: 10% 
B: 40% 
C: 60% 
D: 80% - correct answer C: 60% 
Today, furnaces with AFUE ratings greater than are available. 
A: 85% 
B: 90% 
C: 100% 
D: 110% - correct ...
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MISSOURI BOATING LICENSE EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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1 
MISSOURI BOATING LICENSE EXAM | 
QUESTIONS & ANSWERS (VERIFIED) | 
LATEST UPDATE | GRADED A+ 
Bow 
Correct Answer: Front of the vessel. 
Stern 
Correct Answer: Rear of the vessel. 
Starboard 
Correct Answer: Right side of the vessel. 
Port 
Correct Answer: Left side of the vessel. 
Hull 
Correct Answer: Body of the vessel. 
Gunwale 
Correct Answer: Upper edge of vessel's side. 
2 
Cleat 
Correct Answer: Metal fitting on which a rope can be fastened. 
Propeller 
Correct Answer: Rotates and ...
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Oil Burner License Exam 2023 Questions and Answers
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What is the first thing a tech should do when arriving at a no combustion call? - Answer- Ask how many times the customer reset the unit. 
 
What is the best long term solution for preventing a clogged nozzle? - Answer- -Remove any underground storage tanks. 
-Install a quality oil filter. 
-Cut the suction line 10" above the tank outlet to prevent sludge. 
 
Hot water and steam valves are interchangeable. - Answer- False 
 
When in the presence of a flame, a cad cell normally reads.. - Answe...
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NERC Final Assessment Exam Correct answers (Already GRADED A)
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When using a dynamic schedule and the energy profile in an hour is >250 MW and the actual hourly integration deviates from the hourly energy profile by ____ the tag must be modified. 
A. 100 MW 
B. 10% 
C. 50 MW 
D. 25% 
B. 10% 
 
 
Dry steam plants, flash steam plants, and binary cycle power plants are the three main types of what kind of generating plant? 
A. Nuclear generators 
B. Combustion turbine generators 
C. Geothermal generators 
D. Hydroelectric generators 
C. Geothermal generators...
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Professional Home Inspector Exam NHIE / TREC Questions and Answers Already Passed
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Professional Home Inspector Exam NHIE / TREC Questions and Answers Already Passed 
Document Content and Description Below 
Professional Home Inspector Exam NHIE / TREC Questions and Answers Already Passed The inspector is not required to determine ____ ___ of any system or component. -Years of age -Life expecta ncy -Make model Horizontal waste pipe should slope ____ inch per foot 1/4" per foot if < 3 inch pipe. 1/8" per foot if > or = to 3 inch pipe Drip screed Also called weep screed. U...
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Z-51 Written Exam Questions and Complete Solutions.
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Z-51 Written Exam Questions and Complete Solutions 
 
In a steam turbine, what is the function of a Kingsbury thrust bearing? 
 
A) Maintain first stage steam pressure. 
B) Compensate for coupling misalignment. 
C) Adjust shaft torque at start up. 
D) Maintain axial positioning of the rotor shaft. - Answer: D) Maintain axial positioning of the rotor shaft. 
 
The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given temperature is 
 
A) partial pressure....
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HVAC Gas Heat Exam (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade
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HVAC Gas Heat Exam (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade 
 
 
QUESTION 
 
 Do LP gas installati gas valves with built-in regulators? 
 
ons use 
Answer: 
No- we just said that the gas regulators are located at the supply tank. Duh. 
 
 
 
QUESTION 
 What does a gas valve do? 
 
 
Answer: 
It stops, starts or modulates the flow of fuel gas. 
 
 
 
QUESTION 
 What are the three classifications of gas valves? 
 
 
Answer: 
Solenoid 
Diaphragm 
Heat Mot...
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NATE CORE STUDY GUIDE(correct answers)to pass
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NATE CORE STUDY GUIDE(correct answers)to passWhich of the following is not the product of incomplete combustion: 
Oxides of nitrogen 
 
 
 
An oil trap is required at the base of the discharge line of the vertical riser is _____ or above 
8 feet 
 
 
 
A diode allows current to flow in one direction: 
True 
 
 
 
1 Watt = _____ Btu 
3.41 
 
 
 
Current in a closed circuit is limited by which of the following: 
resistance 
 
 
 
An oil separator is located in the _____: 
Discharge line 
 
 
 
___...
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Nate core exam 2024 with 100% correct answers
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1kwh of electric power is equivalent to ___ btu per hour. 
 
A. 3142 
B. 6412 
C. 9412 
D. 6812 - correct answer A 
 
Gas valves operate at ____ voltage. 
 
A. 120v 
B. 230v 
C. 24v 
D. 12v - correct 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 - correct answer D 
 
Furnaces are placed into categories based upon. 
 
A. Venting characteristics 
B. B
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Nate core Exam Questions with 100% Verified Correct Answers Graded A+
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Nate core Exam Questions with 100% Verified Correct Answers Graded A+ 
1kwh of electric power is equivalent to ___ btu per hour. 
 
A. 3142 
B. 6412 
C. 9412 
D. 6812 - Correct Answer A 
 
Gas valves operate at ____ voltage. 
 
A. 120v 
B. 230v 
C. 24v 
D. 12v - Correct 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 - Correct Answer D 
 
Furnaces are placed into c...
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