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TSSA Exam Practice Questions with Answers 2023, Exams of Company Secretarial Practice

A list of questions and answers related to gas technician certification in Ontario, Canada. The questions cover topics such as safety, combustion, electrical circuits, and regulations. The answers provide information on flame failure response time, MSDS, safety equipment, flammability range, ignition temperature, air to gas ratio, fire extinguishers, and more. useful for students preparing for the TSSA exam or for gas technicians seeking to refresh their knowledge.

Typology: Exams

2022/2023

Available from 10/05/2023

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Download TSSA Exam Practice Questions with Answers 2023 and more Exams Company Secretarial Practice in PDF only on Docsity! TSSA Exam Practice Questions with Answers 2023 What would be the max flame failure response time for a standing pilot - ✓✓✓1 min and 30 seconds What does MSDS stand for? - ✓✓✓Material Safety Data Sheet for basic self protection what do you need? - ✓✓✓A) safety glasses B) safety shoes/boots C) gloves D) all of the above A ladder must extend above the roof landing by? - ✓✓✓36" What are the approximate limits of flammability for natural gas ? - ✓✓✓4%-15% What is the ignition temp of natural gas? - ✓✓✓1300 F What is the flame temp of natural gas? - ✓✓✓1000 F What is the air to gas ratio for perfect combustion of propane gas - ✓✓✓23.5 to 1 What is the expansion rate of propane gas - ✓✓✓1:270 What is the heating value of natural gas per cubic foot in Canada - ✓✓✓1000 BTU Who is the most common testing agency that certifies venting? - ✓✓✓ULC What is the relief valve pressure setting for a propane tank - ✓✓✓250 psig Who issues gas technician certificates in Ontario - ✓✓✓Technical standards and safety authority What is the flammability range of CO? - ✓✓✓12% to 74% What are the products of complete combustion - ✓✓✓Carbon dioxide, water vapour, heat What is needed to start combustion of a fuel - ✓✓✓Ignition, fuel, air What is the air needed to operate a natural draft gas appliance safely? - ✓✓✓Combustion air, dilution air What is the boiling point of natural gas - ✓✓✓-260°F What is the relative density of propane gas - ✓✓✓1.52 What is air comprised of? - ✓✓✓80% nitrogen and 20% oxygen What are the products of incomplete combustion - ✓✓✓Soot, aldehydes, carbon monoxide, heat What type of air is premixed with gas prior to ignition - ✓✓✓Primary air What type of air surrounds the flame for proper combustion - ✓✓✓Secondary air Dilution air is - ✓✓✓Air to neutralize chimney draft How many types of fire extinguishers exist - ✓✓✓4 What is the weight of one imperial gallon of propane - ✓✓✓ What is the relief valve pressure set on a propane cylinder - ✓✓✓250 psig What is the approximate filling density of propane containers - ✓✓✓80% At 120 volts and a editable of 25 ohms what would be the amperage - ✓✓✓4.8 A reading of OL on a digital multi meter would indicate what - ✓✓✓Open circuit What is the chemical formula for natural gas - ✓✓✓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 - ✓✓✓0-250 volts On a 120 volt receptacle, the neutral connection terminal is? - ✓✓✓Silver What is the most common fire extinguishers used in the work place - ✓✓✓A-B-C Which electrical meter is used to check for continuity - ✓✓✓Ohm meter A solenoid valve is activated by an - ✓✓✓Electro magnetic field Underground piping shall be tested for leaks as per which table - ✓✓✓6.3 On a 120 volt receptacle, the hot connection terminal is - ✓✓✓Gold Which of the following best describes a device used to prevent an unsafe condition of temperature, pressure, or liquid level - ✓✓✓A safety limit On a gas meter if the 0.01 cubic meter dial have moved on a pressure test this would indicate - ✓✓✓The gas piping system is leaking Gasket material is used on gas piping system shall be - ✓✓✓Neoprene How tight should a thermocouple connection be - ✓✓✓1/4 turn past finger tight On a 120 volt circuit, the voltage to ground from a unbroken neutral wire should be - ✓✓✓0 volts On a 120 volt circuit the voltage check on an open switch should be - ✓✓✓120 volts What is a combination wrench - ✓✓✓Box end and open end What is the approximate make up of air - ✓✓✓80% N2, 20% O2 Nitrogen is known as an - ✓✓✓Inert gas The act or code that applies to all workers in Ontario is called? - ✓✓✓Occupational Health and Safety Act What is the primary method of heat transfer on a hot plate - ✓✓✓Thermal A yellow flame on an atmospheric burner could be the result of - ✓✓✓Insufficient primary air Which certificate holder may inspect an appliance with an input of 399,000 buth - ✓✓✓ Where would u find the scope of work for a holder of a gas certificate - ✓✓✓O.Reg 215/01 On a propane gas appliance, gas supply pressure before the gas control valve shall be? - ✓✓✓11 " wc What is the required min depth for plastic piping or tubing installed under a commercial parking lot - ✓✓✓24 " When an appliance is installed on a roof the clearance between the appliance and the edge of the roof shall be - ✓✓✓6 ft What is 212°F in C - ✓✓✓100° C What is 21 Celsius to Fahrenheit - ✓✓✓69°F What is the max length permitted when using a corrugated flexible connector? Connected to a suspended appliance - ✓✓✓24 inches When purging a gas piping or tubing system to the outdoor what would be the min distance required from a building opening or air intake ? - ✓✓✓10 ft Fire extinguishers should be inspected every - ✓✓✓1 month Spillage of flue gasses at the appliance draft control device could indicate that - ✓✓✓There is excessive draft in the venting Who is responsible for the proper installation of the gas piping to the appliance - ✓✓✓The gas tech What would be the cubic footage of a 20" long x 15" wide x 8" high room - ✓✓✓2400 cu. ft If 1/4 Of an inch on a piping plan equals one foot what would the total length of a 1 1/2" line? - ✓✓✓6 ft A vent passing through a roof line with a zero pitch should extend out of the roof by - ✓✓✓6 ft Can a compression fitting be used on copper tubing - ✓✓✓No For a central furnace what would be the minimum clearance from combustible on the sides? - ✓✓✓ What type of flashlight is needed by code to search for a gas leak? - ✓✓✓Class 1 group 11A type What are transformers which produce a secondary voltage which is lower than the primary called - ✓✓✓Step down transformers According to the workplace safety and insurance board, which if the following statements is part of the workers obligation in all cases of injury and or disease - ✓✓✓Notify the employer of any injury within eight hours Which of the following statements is true - ✓✓✓Workers must wear the protective clothing that the employer instructs them to wear on the job site Which of the following is true? - ✓✓✓When lifting it is best to lift by bending your knees and using your leg muscles Which of the following lists best describes River the key safety categories which should be considered by gas techs in Ontario - ✓✓✓Personal safety, tools, equipment, safety of others, site, OHSA, fuel codes What does OHSA stand for - ✓✓✓Occupational Health and Safety Act Which of the following phrases is true - ✓✓✓Ontario regulation 212/01 requires a gas tech to report a hazardous condition immediately Why should garbage and debris be removed from a job site - ✓✓✓To prevent possible slips, trips or falls What should a gas tech do before a new piece of gas equipment is installed - ✓✓✓Read the manufacturers certified installation manual Insulation from a copper wire should be removed with - ✓✓✓A wire stripper What is the free area of a rectangular air supply opening measuring 12" x 10" - ✓✓✓120 square feet If a natural gas flame is adjusted to produce more than 11.7% carbon dioxide - ✓✓✓Combustion efficiency will fluctuate Which gas is inert and passes through the combustion zone adsorbing heat heat during the combustion process - ✓✓✓Nitrogen By definition the specific gravity of a gas is the - ✓✓✓Weight of the gas as compared to the weight of an equal volume of air A pressure reading of 7.0" wc equals - ✓✓✓1/4 psig Concert 40 Celsius to Fahrenheit - ✓✓✓94°F A Bunsen flame is caused by - ✓✓✓Not premixing air and fuel prior to combustion How much air is required to burn 1,000 cubic feet of natural gas per hour - ✓✓✓100 ft3 The heat content of 1 cubic foot propane gas is approximately - ✓✓✓2,529 btuh Which of the following are characteristics of carbon monoxide - ✓✓✓- colourless, tasteless - odourless, combustible - lighter than air and extremely toxic Carbon dioxide and nitrogen are - ✓✓✓Inert gases Which word describes the phrase "acceptable to the authority having jurisdiction" when dealing with gas appliances - ✓✓✓Certified What is the name for a valve which allows flow in only one direction - ✓✓✓Back check valve In case of an accident, the director shall - ✓✓✓order an appropriate investigation A TSSA director may - ✓✓✓Supervise and direct inspectors Which of the following observations is true - ✓✓✓Appliances must be installed with a min of 24 inches clearance on the sides where service is required Which type of burner is equipped with a constant ignition source and a flame arresstor and did intended to burn the escaping gas during operations to replace the air in piping with natural gas or propane gas - ✓✓✓Purge burner Which of the following burners are not equip ones with a mechanical device for supply combustion air - ✓✓✓Natural draft burner When is a certificate required in order to install or service a gas fired appliance - ✓✓✓When installing or servicing an appliance in other than one's own residence Which of the following establishes minimum standards for the installation of gas appliances - ✓✓✓Natural gas and propane installation code What is the expression for the max pressure to which any component or portion of the fuel system can be subjected - ✓✓✓Max allowable operating pressure What is a category I appliance - ✓✓✓An appliance that operates with a non positive vent static pressure and a flue loss of not less than 17% A g2 tech - ✓✓✓May replace a defective residential automatic gas fired water heater Which term is used to describe a stationary device used to divert the flow of flue gases - ✓✓✓Baffle Which burner supplies combustion air at sufficient pressure to overcome the resistance of the burner only - ✓✓✓Fan assisted burner The max fine for an individual found guilty under the TSSA is - ✓✓✓$50,000 and/or one year in jail What is category IV appliance - ✓✓✓An appliance that operates with a positive vent static pressure and flue loss of less than 17% Propane cylinders manufactured in Canada after January 1, 1993 are to be built and marked to the specifications of - ✓✓✓transport Canada The holder of a G.1 gas tech certificate is permitted to work - ✓✓✓On appliances with any input If a director under the TSSA refuses to renew or certificate, there is no means of appealing or changing the order or decision - ✓✓✓False Which code definition is used to describe a structure used in a connection with direct trade or service to the public - ✓✓✓Commercial building Where premises are connected to a supply of gas for the first time, no person shall initially activate an appliance until - ✓✓✓The fuel distributor has examined and accepted the installation What is the expression for a housekeeping unit, used or intended to be used ass a domicile by one or more persons usually containing cooking, eating, living, sleeping, and sanitary facilities - ✓✓✓Dwelling unit In a situation that constitutes an immediate hazard, a gas tech shall - ✓✓✓Shut off the gas supply and inform the gas disburse of the situation immediately If voltage is constant in a circuit when current increases resistance - ✓✓✓Decreases Power is measured in - ✓✓✓Watts Resistance is measured in - ✓✓✓Ohms Atoms are said to be electrically neutral when they contain the same - ✓✓✓Amount of protons and electrons If the scale on a mechanical drawing is 1/8-1" then a line measuring 4" in a length is actually - ✓✓✓ How many conductors can be wrapped around a screw terminal - ✓✓✓1 T/F #14 AWG electrical wire is approved for use on 15 amp circuits - ✓✓✓True For current to flow through a circuit there must be - ✓✓✓An electrical path between two connected points If the scale on a mechanical drawing is 1/-1" gh - ✓✓✓32 " Equipment wiring diagram indicates which of the following - ✓✓✓Supply voltage, fuse size, type of disconnect switch, factory wiring Mechanical drawings are used to - ✓✓✓Give the building address, locate the building on the site, location of adjacent structures, piping layout, and show equipment location A bill of materials is - ✓✓✓List indicating the materials required to complete an installation Safety directives and bulletins are issued by whom - ✓✓✓TSSA Equipment service bulletins are issued by who - ✓✓✓The manufacturer Gas piping requirements are in section _________ of the B149.I code book - ✓✓✓6 On a roof with a 12/12 pitch and no obstructions, the minimum vent height for a natural gas fired appliance is - ✓✓✓4 feet Venting and air supply requirements are in section _______ of the code book - ✓✓✓8 For a piping system supplying an appliance having a rated input under 400,000 btuh, the main building line and branch line to the appliance may be purged - ✓✓✓At a readily accessible burner such as the open top burner of a gas range If a branch line which was used to supply a range in the kitchen of a single family home is no longer required how must the line be terminated - ✓✓✓With a plugged valve, or a plug or cap made of material compatible with the material so if the piping or tubing system How is the longest equivalent length determined for systems operating over 2 psig - ✓✓✓Add the equivalent length in feet of straight pipe for each fitting and valve to the longest pipe run Is it necessary to purge each branch supply line in a pipe system - ✓✓✓Yes To correct a symptom such as a fluctuating flame, a technician should first: - ✓✓✓Consult the manufacturer's instructions. Hose used to connect the propane supply to a domestic water heater shall - ✓✓✓Not be permitted The diameter of a drip or dirt pocket shall be equal to the diameter of the piping or tubing that it serves or - ✓✓✓3 inches When can plastic piping be used in indoors - ✓✓✓Never Propane piping of 200 ft in the length or less operating at a pressure over 2 psig but not more than 33 psig shall be tested at minimum of - ✓✓✓50 psig for 60 minutes