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TSSA G3|304 Exam Revision Quiz
Questions With Solutions
(T/F) A properly designed induction coil in an electromagnet will have very little current flowing through it when the electromagnetic force is not doing any work - ✔ ✔ True
An ohmmeter reading across the wires on a good induction coil will indicate: - ✔ ✔ Measurable resistance
An ohmmeter reading between a good solenoid coil and the solenoid causing will indicate: - ✔ ✔ Infinite resistance
(T/F) The current draw of an electric motor is consistence from start to finish - ✔ ✔ False
(T/F) Electrical current flows through a capacitor to increase starting torque on a motor - ✔ ✔ False
If there are more turns of wire on the primary windings of a transformer than on the secondary, the transformer is called a: - ✔ ✔ Step-down transformer
If there are more turns of wire on the secondary windings of a transformer than on the primary, the transformer is called a: - ✔ ✔ Step-up transformer
(T/F) More electrical current will flow in the secondary circuit of a 40 VA transformer than will in the secondary circuit of a 100 VA rated transformer - ✔ ✔ False
If the primary winding of a transformer has an applied voltage of 120V and a current of 1 amp, the maximum current available on the 30V secondary side of the transformer would be: - ✔ ✔ 4 amps
A "VA" rating on a transformer indicates: - ✔ ✔ The available power to the secondary circuit
Ignition transformers are: - ✔ ✔ Step-up transformers
Transformers which produce a secondary voltage that is higher than the primary are called: - ✔ ✔ Step up transformers
(T/F) Transformers which produce a secondary voltage which is lower than the primary are called step down transformers - ✔ ✔ True
(T/F) The electrical code requires that only one bare conductor is connected to a screw terminal - ✔ ✔ True
Electrical wires shall be supported: - ✔ ✔ Every 5 feet and within 1 foot of a junction box or turn in direction
The branch electrical circuit to a heating appliance may be used to supply power to: - ✔ ✔ Accessories necessary for the safe operation of the appliance
How far into a junction box must conductors extend - ✔ ✔ 6 Inches
(T/F) Less than one ampere of electricity can kill a person - ✔ ✔ True
If a co-worker is suffering a shock from an electrical circuit and cannot let go of the circuit, the first action to take is: - ✔ ✔ Disconnect the power to the electrical circuit
A long, yellow flame (or luminous/ carbonizing flame) on an atmospheric burner is caused by: - ✔ ✔ not premixing air and fuel prior to combustion
The flue gases from the complete combustion of natural gas in air are primarily: - ✔ ✔ Carbon dioxide, water vapour, nitrogen, excess air, heat and light
Name four properties or characteristics of carbon monoxide gas. - ✔ ✔ Colourless, Odourless, Tasteless, and Combustible
Name four symptoms of carbon monoxide poisoning. - ✔ ✔ Dizziness, Headaches, Shortness of breath, and Nausea/ Vomiting
(T/F) Carbon Monoxide is toxic - ✔ ✔ True
Two undesirable products of incomplete combustion are: - ✔ ✔ Carbon monoxide and aldehydes
What refers to the air found in the products of combustion
after the complete combustion of natural gas or propane? - ✔ ✔ excess air
Carbon dioxide and nitrogen are: - ✔ ✔ inert gases
Which one of the following substances is inert and passes through the combustion zone absorbing heat during the combustion process? - ✔ ✔ nitrogen
What is the approximate dew point of the water vapour in combustion gases produced by a property setup appliance? - ✔ ✔ 130 F (54 C)
Carbon monoxide is: - ✔ ✔ a toxic gas which is combustible
Carbon monoxide is produced during the incomplete combustion of: - ✔ ✔ hydrocarbon fuels
Air supply to a gas-fired appliance includes: - ✔ ✔ Air required for satisfactory combustion of gas
Ambient air that is admitted into the venting system to control venting action
Air that is admitted to a space containing an appliance to replace exhausted through ventilation openings
A properly set up Bunsen burner flame is what color? - ✔ ✔ blue
If an atmospheric burner is supplied with too much primary air, the result may be: - ✔ ✔ a lifting flame
What effect could negative pressure in a building have on the venting of an appliance? - ✔ ✔ It may cause a downdraft condition at appliances.
Negative pressure in a building is caused by: - ✔ ✔ a lack of makeup air or combustion air
How much combustion air is required to burn 10 cubic feet of natural gas? (In cu. ft.) - ✔ ✔ 100
What is the most common cause of orange flashes in a flame? - ✔ ✔ dust or dirt
Natural gas' relative density to air is: - ✔ ✔ 0.
What does the acronym TSSA stand for? - ✔ ✔ Technical Standards and Safety Authority
What is the organization responsible for administering regulations for the installation and service of gas appliances in Ontario? - ✔ ✔ Technical Standards and Safety Authority (TSSA)
Which organization is responsible for developing and publishing the National Gas and Oil Codes in Canada? - ✔ ✔ CSA
The most specific legal requirements governing the gas industry are found in the: - ✔ ✔ Manufacturer's certified installation instructions
What is the maximum fine that can be given to an individual found guilty of an offence under the act? - ✔ ✔ $50,
What is the maximum fine that can be given a corporation found guilty of an offence under the act? - ✔ ✔ $1,000,
(T/F) If a TSSA Fuel Safety inspector issues an order under the Technical Standards and Safety Act, or if the Fuel Safety Director at TSSA refuses to renew a license, registration or certificate, there is no means of appealing or changing the order or decision. - ✔ ✔ False
(T/F) A Fuels Safety Inspector designated by TSSA is authorized to enter a commercial or industrial building without advance notice to determine if the fuel installations and people working on those installations are in compliance with the laws governing the fuel industry. - ✔ ✔ True
(T/F) A Boiler and Pressure Vessels Inspector designated by TSSA has the same powers as a Fuels Safety Inspector designated by TSSA in
regards to the inspection and enforcement of boiler and pressure vessels code requirements including welding related requirements. - ✔ ✔ True
The TSSA director may serve a Notice of Proposal by: - ✔ ✔ Person, Registered mail, and Fax.
What is the maximum fine that can be given a TSSA inspector found guilty of knowingly contravenes this Act, the regulations or a Minister's order? - ✔ ✔ $25,
(T/F) The director of the Fuel Safety Division of TSSA may, without prior notice or the holding of a hearing, suspend any authorization granted to a person who fails to comply with a safety order. - ✔ ✔ True
A person who is served with an inspector's order is permitted to: - ✔ ✔ Appeal to the Director for changes to the order
A certificate holder or contractor who is not in agreement with the Director's ruling after an appeal and hearing: - ✔ ✔ Appeal to the Provincial Divisional Court for a final ruling
Which of the following documents specifies the qualifications and prerequisites required to become a Gas Technician 1? - ✔ ✔ Fuel Industry Certificates Regulation 215/
A certificate holder shall notify the TSSA within what time period after any change in his or her address. - ✔ ✔ 30 Days
Under what conditions (if any) is a homeowner exempt from requiring a certificate to work on his or her own gas furnace? - ✔ ✔ If the
✔ Notify the owner and the distributor orally and in writing of the unacceptable condition
What action (if any) is a Gas Technician required to take if he/she finds an appliance that is not approved? - ✔ ✔ Treat it as an "unacceptable condition" as per clause 13 and 14. It may be treated as an immediate hazard or as a non-immediate hazard at the discretion of the gas technician.
Which organization can field approve appliances on-site in Ontario? - ✔ ✔ Technical Standards and Safety Authority (TSSA)
A contractor under the TSSA is required to: - ✔ ✔ Register as a contractor, inform his employees to comply with the act and regulations, and monitor to ensure they comply.
A homeowner who meets the certification exemption requirements in the Fuel Industry Certificates Regulation shall not initially activate a propane appliance that is connected to a piping system without: - ✔ ✔ An inspection of the installation by a certified gas technician
Which of the following codes applies to all appliance and piping installations downstream of the natural gas meter? - ✔ ✔ CSA B149.1 Natural Gas and Propane Installation Code
Which word means "investigated and identified by a designated testing organization as conforming to recognized standards, requirements, or accepted test reports"? - ✔ ✔ Certified
What is a Category 1 Appliance? - ✔ ✔ An appliance that operates with a non-positive vent static pressure and a flue loss of not less than 17%
Who is responsible for ensuring that a newly installed piping system is pressure tested in accordance with Gas Code requirements? - ✔ ✔ The installer
Which of the following is covered in the B149.1 and B149.2 installation codes? - ✔ ✔ Installation of venting systems
A technician who installs and activates an appliance or replace component shall: - ✔ ✔ Ensure that it complies with the Gas Code, it is in safe working order, and instruct the user in the safe and correct operation of the appliance
Where an appliance cannot be installed in accordance with the regulations, what is required? - ✔ ✔ Prior to installation, a variance from the code must be applied for and accepted by TSSA
Before installation of any replacement part of an appliance, equipment, component or accessory, the installer shall: - ✔ ✔ Ensure that the replacement part is at least equivalent to the original part
Certified manufacturer's instructions for an appliance or component are: - ✔ ✔ Legal requirements that shall be followed
Where there is conflict between the manufacturer's certified instructions and the CSA B149.1 Natural Gas and Propane installation code, which one do you follow? - ✔ ✔ The most stringent requirement shall prevail in all cases
What is the minimum allowed clearance between a rooftop gas-fired appliance and the edge of the roof? - ✔ ✔ 6 Feet (2 meters)
What is the expression for a housekeeping unit, used or intended to be used as a domicile by one or more persons, and usually containing cooking, eating, living, sleeping, and sanitary facilities? - ✔ ✔ Dwelling Unit
An intermittent ignition source: - ✔ ✔ Continues to function during the entire period that the flame is present
The maximum pressure to which any component or portion of the fuel system can be subjected is called the: - ✔ ✔ Maximum operating pressure
An appliance which is supplied as a complete unit including burner, controls, and integral wiring is called a: - ✔ ✔ Package unit
A device used to control and maintain a uniform outlet pressure is called a: - ✔ ✔ Pressure regulator
Which one of the following should be consulted to determine the specific purpose an appliance is to be used for? - ✔ ✔ Appliance name plate or rating plate
The B149.1 Gas Code states that appliance manufacturer's instructions:
- ✔ ✔ Shall be left with the end user
When the installation of an appliance constitutes a conversion from another form of energy (oil to gas), the installer must: - ✔ ✔ Advise the appliance user at the time of installation of the steps required to have the former form of energy removed
The installation of gas-burning appliances in mobile homes shall be in accordance with: - ✔ ✔ CSA-Z240.4.1 Code
What code applies to a mobile home with a propane supply that has been converted to a permanent home site? - ✔ ✔ CSA-B149.1 Code
Which of the following Codes is a G3 required to comply with when working on gas-fired installations? - ✔ ✔ B149 Series of the Gas Code, Ontario Electrical Code, and Ontario Building Code.
Requirements on tanks are from: - ✔ ✔ Boiler Pressure Vessels Act
Requirements on cylinders are from: - ✔ ✔ Transport Canada
Appliances in Garages must be: - ✔ ✔ Protected from damage and be 18" (or 4.5 feet) above the floor depending on the use of the garage
(T/F) A quick-disconnect device shall require a shut-off valve up stream of it - ✔ ✔ True
A manual shut off valve shall be installed so that it is: - ✔ ✔ Readily accessible
A readily accessible shut off valve shall be installed: - ✔ ✔ In either the drop or riser as close as possible to the valve train of the appliance
The minimum depth of burial for either piping and tubing is: - ✔ ✔ 15" except it is 24" under a commercial driveway or parking lot
At every care or detention occupancy, commercial, industrial, and assembly building, piping or tubing shall be identified by: - ✔ ✔ Painted yellow, yellow branding, or labeled or marked GAS or PROPANE
How often is it required to mark gas pipe or tubing piping (in feet)? - ✔ ✔ Every 20' for piping and every 6' for tubing
What three types of copper tubing can be used for gas supply? - ✔ ✔ Type G, K, and L
What is the maximum size of threaded fittings allowed for gas piping? - ✔ ✔ 2"
What qualifications are required for a person welding gas piping? - ✔ ✔ Registered under the Boiler and Pressure Vessel Act regulations
Can bushings be used on gas piping? If so, are there any restrictions for their use? - ✔ ✔ Yes, but only 1 pipe size change for steel (1" to 3/4") and for 2 or more pipe size changes, malleable is used (1" to 1/2")
What is the maximum allowed distance between piping supports for NPS 2 piping run horizontally? - ✔ ✔ 10'
When a quick-disconnect is used on a gas supply system, what device shall be providing in the piping system and where shall it be installed? - ✔ ✔ A shut off upstream of the quick-disconnect.
Can a quick disconnect be used in place of a manual shut-off valve? - ✔ ✔ No
Can rubber gaskets be used in gas piping flanges? - ✔ ✔ No
Are machined brass flare fittings allowed? - ✔ ✔ No
Are forged brass flare fittings allowed? - ✔ ✔ Yes
Are compression flare fittings allowed? - ✔ ✔ No
Are soft-soldered brazed fittings allowed? - ✔ ✔ No
Are Swagelok fittings allowed? - ✔ ✔ Yes
Are press-connected fittings allowed? - ✔ ✔ Yes
What is the minimum and maximum length of hose allowed for connecting to a construction heater? - ✔ ✔ 15' to 75'
During the period when an appliance is not connected to an outlet of piping system, how shall the outlet be made gas tight? - ✔ ✔ Capped
What is the minimum length and maximum diameter of a dirt pocket on an NPS 6 pipe drop to an appliance? - ✔ ✔ 6" length and 2" diameter
Can street elbows or closed nipples be used on a gas piping system? - ✔ ✔ No
What is the maximum length of a flexible connector used to connect a suspended appliance to a piping system? - ✔ ✔ 2'
Can air be purged out of a gas piping system into a combustion chamber? - ✔ ✔ No
What is the maximum propane supply pressure allowed in a single- family dwelling? - ✔ ✔ 2 psig
What is the maximum propane supply pressure allowed in a central mechanical room located on the roof of a commercial building? - ✔ ✔ 20 psig
What is the maximum allowable natural gas pressure allowed in an industrial mechanical room? - ✔ ✔ 66 psi
The approximately percentage of oxygen and nitrogen in air is: - ✔ ✔ 21% Oxygen and 79% Nitrogen
The properties concerning natural gas and propane is on what page of the codebook? - ✔ ✔ 351
(T/F) Propane liquid escaping from a container rapidly drops in temperature - ✔ ✔ True
What is L.E.L.? - ✔ ✔ The lowest percent of gas in the air-gas mixture that will support combustion
Odorant is added to natural gas at the: - ✔ ✔ City gate station
The maximum flame temperature from the combustion of natural gas with air is: - ✔ ✔ 3500 F
The two main hydrocarbons which form natural gas are: - ✔ ✔ methane and ethane
The boiling point of propane is: - ✔ ✔ -44 F
The boiling point of natural gas is: - ✔ ✔ -260 F
What is the ignition temperature of propane gas compared to natural gas? - ✔ ✔ Lower for propane
What is the ignition temperature of propane gas? - ✔ ✔ 920 to 1020 F
Is natural gas heavier or lighter than air? - ✔ ✔ lighter
Is propane heavier or lighter than air? - ✔ ✔ heavier
One imperial gallon of propane weighs: - ✔ ✔ 5.1 pounds (2. kilograms)
At 60°F (15,5° C) a pound of propane produces how many cubic feet of gas? - ✔ ✔ 8.
Propane shall have a distinctive odour content to ensure it is readily detectable in the atmosphere down to concentrations of: - ✔ ✔ 20% of the lower explosive limit.
When one pound of propane burns, it releases approximately: - ✔ ✔ 21,600 Btu
The relative density of liquid propane as compared to water is approximately: - ✔ ✔ 0.
Propane is a: - ✔ ✔ hydrocarbon
As the temperature of liquid propane in a tank increases, the vapour pressure of the propane: - ✔ ✔ increases
What is the minimum distance below a commercial parking lot gas piping is allowed to be buried? - ✔ ✔ 24"
Underground piping joints shall be: - ✔ ✔ Welded or press-connect fittings
Piping joint tape shall be: - ✔ ✔ Approved
What is the maximum allowed spacing for supports on NPS 3 horizontal piping? - ✔ ✔ 15'
