Download TSSA G3 FINAL EXAM ASSESSMENT TESTBANK 300 QUESTIONS & DETAILED ANSWERS (WELL VERIFIED) and more Exams Nursing in PDF only on Docsity!
TSSA G3 FINAL EXAM ASSESSMENT TESTBANK 300
QUESTIONS & DETAILED ANSWERS (WELL VERIFIED)
GRADED A+
Natural gas and propane are: - CORRECT ANSWER >>> members of the hydrocarbon family Natural gas and propane are composed mainly of: - CORRECT ANSWER >>> carbon and hydrogen What is the odorant added to natural gas and propane? - CORRECT ANSWER >>> mercaptan 85% to 95% of natural gas is composed of: - CORRECT ANSWER >>> methane Chemical formula for Methane: - CORRECT ANSWER >>> CH Chemical formula for Propane: - CORRECT ANSWER >>> C3H Chemical formula for Oxygen: - CORRECT ANSWER >>> O Chemical formula for Nitrogen: - CORRECT ANSWER >>> N Chemical formula for Water: - CORRECT ANSWER >>> H2O Chemical formula for Carbon Dioxide: - CORRECT ANSWER >>> CO Chemical formula for Carbon Monoxide: - CORRECT ANSWER >>> CO
The approximately percentage of oxygen and nitrogen in air is: - CORRECT ANSWER >>> 21% Oxygen and 79% Nitrogen The properties concerning natural gas and propane is on what page of the codebook? - CORRECT ANSWER >>> 351 (T/F) Propane liquid escaping from a container rapidly drops in temperature - CORRECT ANSWER >>> True What is L.E.L.? - CORRECT ANSWER >>> The lowest percent of gas in the air-gas mixture that will support combustion Odorant is added to natural gas at the: - CORRECT ANSWER >>> City gate station The maximum flame temperature from the combustion of natural gas with air is: - CORRECT ANSWER >>> 3500 F The two main hydrocarbons which form natural gas are: - CORRECT ANSWER >>> methane and ethane The boiling point of propane is: - CORRECT ANSWER >>> - 44 F The boiling point of natural gas is: - CORRECT ANSWER >>> - 260 F What is the ignition temperature of propane gas compared to natural gas? **- CORRECT ANSWER
** Lower for propane
The "specific gravity of a gas (vapour)" is: - CORRECT ANSWER >>> the weight of the gas as compared to the weight of an equal volume of air Name the three elements required for combustion of any fuel? - CORRECT ANSWER >>> Oxygen, Heat, and Fuel. What would be the easiest to control or eliminate in a leak situation (before a fire occurs) - CORRECT ANSWER >>> Shutting off the fuel The products of perfect combustion of natural gas or propane with oxygen are: - CORRECT ANSWER >>> water vapour, carbon dioxide, heat, and light What air to gas ratio is required for the complete combustion of natural gas? - CORRECT ANSWER >>> 10 parts of air to 1 part of gas What air to gas ratio is required for the complete combustion of propane? **- CORRECT ANSWER
** 24 parts of air to 1 part of gas Air that is mixed with fuel prior to ignition is called: - CORRECT ANSWER >>> primary air Air that is mixed with fuel at the point of combustion and around the flame is called: - CORRECT ANSWER >>> secondary air What is excess air? - CORRECT ANSWER >>> Air in the combustion zone in addition to that which is required for combustion. A long, yellow flame (or luminous/ carbonizing flame) on an atmospheric burner is caused by: - CORRECT ANSWER >>> not premixing air and fuel prior to combustion
The flue gases from the complete combustion of natural gas in air are primarily: - CORRECT ANSWER >>> Carbon dioxide, water vapour, nitrogen, excess air, heat and light Name four properties or characteristics of carbon monoxide gas. **- CORRECT ANSWER
** Colourless, Odourless, Tasteless, and Combustible Name four symptoms of carbon monoxide poisoning. - CORRECT ANSWER >>> Dizziness, Headaches, Shortness of breath, and Nausea/ Vomiting (T/F) Carbon Monoxide is toxic - CORRECT ANSWER >>> True Two undesirable products of incomplete combustion are: - CORRECT ANSWER >>> Carbon monoxide and aldehydes What refers to the air found in the products of combustion after the complete combustion of natural gas or propane? - CORRECT ANSWER >>> excess air Carbon dioxide and nitrogen are: - CORRECT ANSWER >>> inert gases Which one of the following substances is inert and passes through the combustion zone absorbing heat during the combustion process? - CORRECT ANSWER >>> nitrogen What is the approximate dew point of the water vapour in combustion gases produced by a property setup appliance? - CORRECT ANSWER >>> 130 F (54 C) Carbon monoxide is: - CORRECT ANSWER >>> a toxic gas which is combustible
Natural gas' relative density to air is: - CORRECT ANSWER >>> 0. Propane's relative density to air is: - CORRECT ANSWER >>> 1. What is natural gas mainly comprised of? - CORRECT ANSWER >>> methane What is the relationship of pressure and temperature in propane cylinders? **- CORRECT ANSWER
** As temperature increases, the pressure increases. What is the normal relief valve set pressure in a tank? (in psig) - CORRECT ANSWER >>> 270 Who regulates the tanks? - CORRECT ANSWER >>> Transport Canada (TC) and/or Department of Transportation (DOT) Generally, how much would you fill a propane container to? (percentage) **- CORRECT ANSWER ** 80 What is the first action when the relief valve on a propane container is leaking? - CORRECT ANSWER >>> Cool it with water What is a British Thermal Unit (BTU)? - CORRECT ANSWER >>> the amount of heat necessary to raise the temperature of 1 pound of water to 1 degree Fahrenheit 1 kilowatt-hour (kWh) is how many BTUs? - CORRECT ANSWER >>> 3, (T/F) The gas code does not permit the repair of a damaged heat exchanger in a dwelling -
CORRECT ANSWER >>> True (T/F) A damaged heat exchanger in a residential building requires the complete replacement of the heat exchanger. - CORRECT ANSWER >>> True Name the "Authority having Jurisdiction" in Ontario as it relates to the gas industry. - CORRECT ANSWER >>> Director of the Fuel Safety Division of TSSA What does the acronym TSSA stand for? - CORRECT ANSWER >>> Technical Standards and Safety Authority What is the organization responsible for administering regulations for the installation and service of gas appliances in Ontario? - CORRECT ANSWER >>> Technical Standards and Safety Authority (TSSA) Which organization is responsible for developing and publishing the National Gas and Oil Codes in Canada? - CORRECT ANSWER >>> CSA The most specific legal requirements governing the gas industry are found in the: - CORRECT ANSWER >>> 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? - CORRECT ANSWER >>> $50, What is the maximum fine that can be given a corporation found guilty of an offence under the act? - CORRECT ANSWER >>> $1,000, (T/F) If a TSSA Fuel Safety inspector issues an order under the Technical Standards and Safety
Which of the following documents specifies the qualifications and prerequisites required to become a Gas Technician 1? - CORRECT ANSWER >>> Fuel Industry Certificates Regulation 215/ A certificate holder shall notify the TSSA within what time period after any change in his or her address. - CORRECT ANSWER >>> 30 Days Under what conditions (if any) is a homeowner exempt from requiring a certificate to work on his or her own gas furnace? - CORRECT ANSWER >>> If the person owns and occupies a single detached dwelling and complies with all code requirements but does not initially activate the appliance. (T/F) The holder of a valid G2 certificate is authorized to work on the carburetion system of a propane powered highway vehicle. - CORRECT ANSWER >>> False The holder of a G1 certificate is permitted to work on gas appliances with: - CORRECT ANSWER >>> Any input The holder of a G2 certification may install and service gas-fired equipment with inputs up to: - CORRECT ANSWER >>> 400,000 Btuh The holder of a DA certification may install and service gas-fired equipment with inputs up to: - CORRECT ANSWER >>> 100,000 Btuh Describe what action you would take if you were called in to re-activate an appliance involved in a fire or carbon monoxide poisoning that has apparently been caused by the use of fuel. - CORRECT ANSWER >>> Make it safe, then contact TSSA and do not disturb the incident scene until it is released by a TSSA inspector
If a Gas Technician finds an appliance that presents an immediate hazard, he is required to: - CORRECT ANSWER >>> Shut off the gas supply and immediately inform the owner and the distributer What is the maximum time period that a distributor can allow for the correction of an unacceptable condition that does not pose an immediate hazard? - CORRECT ANSWER >>> 90 Days If a Gas Technician discovers a roof top appliance located 5.5 feet from the edge of the roof in January, the gas technician is required to: - CORRECT ANSWER >>> 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? - CORRECT ANSWER >>> Treat it as an "unacceptable condition" as per clause 13 and
- 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? **- CORRECT ANSWER
** Technical Standards and Safety Authority (TSSA) A contractor under the TSSA is required to: - CORRECT ANSWER >>> 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: - CORRECT ANSWER >>> 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? - CORRECT ANSWER >>> CSA B149.1 Natural Gas and Propane Installation Code
Natural Gas and Propane installation code, which one do you follow? **- CORRECT ANSWER
** 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? - CORRECT ANSWER >>> 6 Feet (2 meters) An appliance shall be installed with the minimum service clearance of: **- CORRECT ANSWER ** 24 Inches (0.6 meters) By covering a piece of wood with 28-guage (0.3mm) sheet metal spaced out 1" (25mm), a person may reduce the side clearance of an appliance that requires 10 inches (250mm)
clearance from combustible material by: - CORRECT ANSWER >>> 6 Inches (T/F) A heat exchanger on a forced air furnace in a dwelling can be repaired if the welder is certified by TSSA - CORRECT ANSWER >>> False What is a Category IV Appliance? - CORRECT ANSWER >>> An appliance that operates with a positive vent static pressure and an appliance efficiency of over 83% A stationary device used to divert the flow of flue gases is called a: **- CORRECT ANSWER
** Baffle What is the name of the part of a piping or tubing system which conveys gas from the main supply piping, tubing, or header to an appliance or appliances? - CORRECT ANSWER >>> Branch Line A building used in connection with direct trade or service to the public is a: **- CORRECT ANSWER ** Commercial building
What is a "care and detention building"? - CORRECT ANSWER >>> A building occupied by persons who require special care or treatment because of cognitive or physical limitations and who are restrained from self destruction by security measures not under their control What is the meaning of the term "damper" when used in the Gas Code? **- CORRECT ANSWER
** A plate or valve for regulating the flow of air or flue gas 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? - CORRECT ANSWER >>> Dwelling Unit An intermittent ignition source: - CORRECT ANSWER >>> 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: - CORRECT ANSWER >>> Maximum operating pressure An appliance which is supplied as a complete unit including burner, controls, and integral wiring is called a: - CORRECT ANSWER >>> Package unit A device used to control and maintain a uniform outlet pressure is called a: **- CORRECT ANSWER ** Pressure regulator Which one of the following should be consulted to determine the specific purpose an appliance
is to be used for? - CORRECT ANSWER >>> Appliance name plate or rating plate The B149.1 Gas Code states that appliance manufacturer's instructions: **- CORRECT ANSWER
** Shall be left with the end user
The minimum depth of burial for either piping and tubing is: - CORRECT ANSWER >>> 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: - CORRECT ANSWER >>> 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)? **- CORRECT ANSWER
** Every 20' for piping and every 6' for tubing What is the maximum allowed length of a gas hose? - CORRECT ANSWER >>> 10' What is the maximum length allowed for portable appliances? (Unless allowed by the appliance standard) - CORRECT ANSWER >>> 30' What is the minimum and maximum distances allowed for a construction heater? - CORRECT ANSWER >>> 15' minimum and 75' maximum On gas hoses, a shut off valve shall be installed so that it is: **- CORRECT ANSWER ** immediately upstream of the hose, not close to the floor, and not in any location where it could be turned on accidentally The minimum size of a dirt pocket diameter is: - CORRECT ANSWER >>> The same as the diameter of pipe, but a maximum of 2" NPS The minimum size of a dirt pocket drop is: - CORRECT ANSWER >>> The pipes diameter in length, but a minimum of 3"
Piping that penetrates a wall or ceiling must have how many inches of unthreaded pipe extending beyond the finished wall or ceiling? - CORRECT ANSWER >>> 1" of unthreaded pipe showing Piping that penetrates through a floor must have how many inches of unthreaded pipe extending beyond the finished flooring? - CORRECT ANSWER >>> 2" of unthreaded pipe showing (T/F) An appliance with a gas hose may be connected to building piping by means of a quickdisconnect device - CORRECT ANSWER >>> True Piping of what size or greater must be welded? - CORRECT ANSWER >>> 2.5" NPS What material can gas piping or tubing be constructed of? - CORRECT ANSWER >>> Steel, Copper, or Plastic What three types of copper tubing can be used for gas supply? - CORRECT ANSWER >>> Type G, K, and L What is the maximum size of threaded fittings allowed for gas piping? **- CORRECT ANSWER
** 2" What qualifications are required for a person welding gas piping? **- CORRECT ANSWER ** 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? - CORRECT ANSWER >>> 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")
During the period when an appliance is not connected to an outlet of piping system, how shall the outlet be made gas tight? - CORRECT ANSWER >>> Capped What is the minimum length and maximum diameter of a dirt pocket on an NPS 6 pipe drop to an appliance? - CORRECT ANSWER >>> 6" length and 2" diameter Can street elbows or closed nipples be used on a gas piping system? - CORRECT ANSWER >>> No What is the maximum length of a flexible connector used to connect a suspended appliance to a piping system? - CORRECT ANSWER >>> 2' Can air be purged out of a gas piping system into a combustion chamber? **- CORRECT ANSWER
** No What is the maximum propane supply pressure allowed in a single-family dwelling? - CORRECT ANSWER >>> 2 psig What is the maximum propane supply pressure allowed in a central mechanical room located on the roof of a commercial building? - CORRECT ANSWER >>> 20 psig What is the maximum allowable natural gas pressure allowed in an industrial mechanical room?
- CORRECT ANSWER >>> 66 psi What is the maximum propane pressure allowed inside an industrial building? - CORRECT ANSWER >>> 20 psi What type of fittings may be used with steel pipe? - CORRECT ANSWER >>> Malleable iron
The unthreaded portion of a piping outlet shall extend how many inches through a floor? - CORRECT ANSWER >>> 2" What is the minimum distance below a commercial parking lot gas piping is allowed to be buried? - CORRECT ANSWER >>> 24" Underground piping joints shall be: - CORRECT ANSWER >>> Welded or press-connect fittings Piping joint tape shall be: - CORRECT ANSWER >>> Approved What is the maximum allowed spacing for supports on NPS 3 horizontal piping? - CORRECT ANSWER >>> 15' Coated copper tubing or corrugated stainless-steel tubing employed on a 2 psi supply of 150 feet shall be pressure tested to: - CORRECT ANSWER >>> 15 psig for 15 minutes Who is permitted to weld gas piping? - CORRECT ANSWER >>> A welder certified by TSSA's Boiler and Pressure Vessels Division who is using an approved welding method Piping of NPS ____ and over should have welded pipe joints - CORRECT ANSWER >>> 2.5" The length and diameter of a 4" dirt pocket shall be? - CORRECT ANSWER >>> 4" long and 2" diameter Hose used to connect the propane supply to a domestic water heater shall: **- CORRECT ANSWER
** Not be permitted
