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Exam (elaborations)

TSSA UPDATED Exam Questions and CORRECT Answers

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TSSA UPDATED Exam Questions and CORRECT Answers What would be the max flame failure response time for a standing pilot - CORRECT ANSWER- 1 min and 30 seconds What does MSDS stand for? - CORRECT ANSWER- Material Safety Data Sheet for basic self protection what do you need? - CORRECT ANSWER- A...

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  • August 4, 2024
  • 20
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • TSSA
  • TSSA
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MGRADES
TSSA UPDATED Exam Questions and
CORRECT Answers

What would be the max flame failure response time for a standing pilot - CORRECT
ANSWER- 1 min and 30 seconds


What does MSDS stand for? - CORRECT ANSWER- Material Safety Data Sheet


for basic self protection what do you need? - CORRECT ANSWER- A) safety glasses
B) safety shoes/boots
C) gloves
D) all of the above


A ladder must extend above the roof landing by? - CORRECT ANSWER- 36"


What are the approximate limits of flammability for natural gas ? - CORRECT ANSWER-
4%-15%


What is the ignition temp of natural gas? - CORRECT ANSWER- 1300 F


What is the flame temp of natural gas? - CORRECT ANSWER- 1000 F


What is the air to gas ratio for perfect combustion of propane gas - CORRECT ANSWER-
23.5 to 1


What is the expansion rate of propane gas - CORRECT ANSWER- 1:270


What is the heating value of natural gas per cubic foot in Canada - CORRECT ANSWER-
1000 BTU

,Who is the most common testing agency that certifies venting? - CORRECT ANSWER-
ULC


What is the relief valve pressure setting for a propane tank - CORRECT ANSWER- 250 psig


Who issues gas technician certificates in Ontario - CORRECT ANSWER- Technical
standards and safety authority


What is the flammability range of CO? - CORRECT ANSWER- 12% to 74%


What are the products of complete combustion - CORRECT ANSWER- Carbon dioxide,
water vapour, heat


What is needed to start combustion of a fuel - CORRECT ANSWER- Ignition, fuel, air


What is the air needed to operate a natural draft gas appliance safely? - CORRECT
ANSWER- Combustion air, dilution air


What is the boiling point of natural gas - CORRECT ANSWER- -260°F


What is the relative density of propane gas - CORRECT ANSWER- 1.52


What is air comprised of? - CORRECT ANSWER- 80% nitrogen and 20% oxygen


What are the products of incomplete combustion - CORRECT ANSWER- Soot, aldehydes,
carbon monoxide, heat


What type of air is premixed with gas prior to ignition - CORRECT ANSWER- Primary air


What type of air surrounds the flame for proper combustion - CORRECT ANSWER-
Secondary air

, Dilution air is - CORRECT ANSWER- Air to neutralize chimney draft


How many types of fire extinguishers exist - CORRECT ANSWER- 4


What is the weight of one imperial gallon of propane - CORRECT ANSWER-


What is the relief valve pressure set on a propane cylinder - CORRECT ANSWER- 250 psig


What is the approximate filling density of propane containers - CORRECT ANSWER- 80%


At 120 volts and a editable of 25 ohms what would be the amperage - CORRECT ANSWER-
4.8


A reading of OL on a digital multi meter would indicate what - CORRECT ANSWER- Open
circuit


What is the chemical formula for natural gas - CORRECT ANSWER- CH4


When it has been determined that the voltage to a unit is approximately 115 volts which
range should a digital volt meter be set to read at - CORRECT ANSWER- 0-250 volts


On a 120 volt receptacle, the neutral connection terminal is? - CORRECT ANSWER- Silver


What is the most common fire extinguishers used in the work place - CORRECT ANSWER-
A-B-C


Which electrical meter is used to check for continuity - CORRECT ANSWER- Ohm meter


A solenoid valve is activated by an - CORRECT ANSWER- Electro magnetic field


Underground piping shall be tested for leaks as per which table - CORRECT ANSWER- 6.3

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