Ignition spark - Study guides, Class notes & Summaries
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IAAI CFI Study Questions and Answers (202324]
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Combustible Liquid - A liquid with a flash point ABOVE 100F 
12.5 - If the current flowing out from an electrical panel is 12.5 amps, and it then flows through an electrical load of 1500 watts, what is the amperage of the remaining current flow of the return circuit? 
1000 - If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage? 
 
*Power (P) = current (I) x voltage (V) 
Watts = amps x volts 
1987 - The year of the first edition of NFPA 1033 
1.5 times - ...
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ABYC Practice Questions and Correct Answers 100% Verified
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ABYC Practice Questions and Correct Answers 100% Verified 
A sailboat's rigging is considered a reliable path to ground for lightning? T/F? - Correct Answer FALSE. End fittings introduce the possibility of high resistance. TE-4, Conductors 
 
Gasoline engines use what kind of ignition? - Correct Answer Spark igntion Diesel Study Guide, Chapter 1 
 
Diesel engines use what kind of ignition? - Correct Answer Compression ignition Diesel Study Guide, Chapter 1 
 
Spark ignition are what kind of engi...
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NATE Gas Heating Exam Questions with Correct Answers 2023
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NATE Gas Heating Exam Questions with Correct Answers 
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% -AnsC: 78% 
Many pre-1992 furnaces have efficiencies around _______. 
A: 10% 
B: 40% 
C: 60% 
D: 80% -AnsC: 60% 
Today, furnaces with AFUE ratings greater than _____ are available. 
A: 85% 
B: 90% 
C: 100% 
D: 110% -AnsB: 90% 
A thermocouple is used with: 
A:...
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IAAI CFI Study Questions and Answers (2024/2025)
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Combustible Liquid - Correct answer-A liquid with a flash point ABOVE 100F 
12.5 - Correct answer-If the current flowing out from an electrical panel is 12.5 amps, 
and it then flows through an electrical load of 1500 watts, what is the amperage of the 
remaining current flow of the return circuit? 
1000 - Correct answer-If a hair dryer draws 8.3amps (in a home with 120-volt service), 
what is the wattage? 
*Power (P) = current (I) x voltage (V) 
Watts = amps x volts 
1987 - Correct answer-The y...
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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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Ontario Gas G1 Practice Exam Prep B149.3-10 Questions and answers with 100% Complete Solutions | verified &updated 2024
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Ontario Gas G1 Practice Exam Prep B149.3-10 Questions and answers with 100% Complete Solutions | verified &updated 2024 
What is the first action 'to be taken when performing an ignition spark response test? - Close test firing valve and pilot valve 
A valve not considered 100% shutoff - Butterfly valve 
The "Bleed" valve on a double block&bleed system is required on an appliance firing over? - 
Where is the low pressure switch located on the valve train? - After the main gas regulator 
Wher...
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HVAC Gas Heat Exam (Latest 2024 / 2025 Update) 100% Correct Questions and Verified Answers | Grade A
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HVAC Gas Heat Exam (Latest 2024 / 2025 Update) 100% Correct Questions and Verified Answers | Grade A 
 
 
 
Question: 
How does a thermocouple flame-prove a pilot flame. 
Answer: 
A thermocouple produces a small voltage when heated by the pilot flame. The thermocouple is connected to a shutoff valve. As long as the electrical current energizes the coil in the valve, the gas can flow. If the flame goes out, no current will flow and the gas valve closes, shutting off the gas. 
 
 
Question: 
What ...
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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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NAFI CFEI Test Questions with 100% correct Answers
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The basic methodology of the fire investigation should rely on the use of a ______________________ and attention to all relevant details. 
 
a. systematic approach 
b. approximation approach 
c. methodology approach 
d. general approach - ANSWER-a. systematic approach 
 
With few exceptions, the proper methodolgy for a fire or explosion investigation is to first _____________________ then investigate the cause, circumstances, conditions, or agencies that brought the ignition source, fuel, and ox...
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ASE G1 Test Questions & Answers | 55 Questions with 100% Correct Answers | Verified | Updated 2023
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Technician A says that when pressure testing a radiator cap, a special adapter is needed. 
Technician B says the best way to check thermostat operation is while it is in the engine. Who is 
right? - Tech A 
A technician is checking resistance in an engine's spark plug wires using an ohmmeter. A general 
rule is to replace a wire if resistance is over: - 30,000 ohms 
Technician A says that in an ignition system, the voltage supplied to the coil during starting is 
battery voltage. Technician B s...
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