Download G3 159 Exam Revision Quiz Questions with Answers: Gas Technician Knowledge Assessment and more Exams Engineering in PDF only on Docsity!
G3 159 exam Revision Quiz Questions
With Answers
- True or false - four way switches are considered to be disconnecting mean? A) true B) false - ✔ ✔ B) false
- The nucleus of an atom has an overall __________ electrical charge? A) positive B) negative C) neutral D) none of the above - ✔ ✔ A) positive
- The atomic number of an element represents the number of? A) electrons B) protons C) neutrons D) none of the above - ✔ ✔ B) protons
- Which actively participates in the transfer of electrical energy? A) electrons B) protons
C) neutrons D) nucleus - ✔ ✔ A) electrons
- An atom has added one or more free electrons is a? A) positive ion B) negative ion C) electrically neutral D) none of the above - ✔ ✔ B) negative ion
- How often do portable fire extinguishers have to be inspected? A) every month B) every six months C) every nine months D) every twelve months - ✔ ✔ D) every twelve months
- What does OSHA stand for? A) Ontario health and standards act B) Ontario health and safety act C) occupational health and safety act D) occupational health and standard ac - ✔ ✔ C) occupational health and safety act
- Technicians use MSDS sheets to: A) be aware of flammable,corrosive, or explosive substances
D) institutional building - ✔ ✔ C) commercial building
- Where premises are connected to a supply of gas for the first time, no person shall initially activate an appliance until: A) the fuel distributor has been notified B) the fuel distributor has examined and accepted the installation C) the owner has examined and accepted the installation D) the technical standards and safety authority has examined and accepted the installation - ✔ ✔ B) the fuel distributor has examined and accepted the installation
- 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: A) residential occupancy B) dwelling unit C) bed-sitting room D) non-commercial building - ✔ ✔ B) dwelling unit
- In a situation that constitutes an immediate hazard, a gas technician shall: A) shut off the gas supply and inform the gas distributor of the situation immediately B) shut off the gas supply and inform the technical standards and safety authority of the situation immediately C) shut off the gas supply and inform the Ontario fire marshal's office of the situation immediately
D) shut off the gas supply and inform the department of labour of the situation immediately - ✔ ✔ A) shut off the gas supply and inform the gas distributor of the situation immediately
- If voltage is constant in a resistive circuit when current increases, resistance: A) increases B) remains the same C) decreases D) fluctuates - ✔ ✔ D) fluctuates
- Transformers which share a winding or a portion of a winding are called: A) step down transformers B) step up transformers C) auto transformers D) neutral transformers - ✔ ✔ C) auto transformers 8.Which of the following phrases is true: A). the natural gas and propane installation code requires a technician to report a hazardous installation within three working days of completion B) the OSHA requires that hazards be reported within 72 hours C) the industry does not demand that hazards be reported for correction
D) a wire stripper - ✔ ✔ D) a wire stripper
- What is the volume of a room measuring 16'X12'X7' A) 84 square feet B) 192 cubic feet C) 1344 cubic feet D) 16, 128 square feet - ✔ ✔ C) 1344 cubic feet
- What is purpose of a drill gauge: A) to measure the diameter of a drill bit B) to measure the diameter of a drill C) to measure the length of a drill D) to measure the length of a drill bit - ✔ ✔ A) to measure the diameter of a drill bit 14.The fastener used to connect a drain hose to a fan coil unit is: A) a gear clamp B) copper bailing wire C) electrical tape D) grappler bar - ✔ ✔ A) a gear clamp
- What is the area of rectangular air supply opening measuring 12"x10" A) 1.0 square feet
B) 1.2 cubic feet C) 100 cubic inches D) 120 square inches - ✔ ✔ D) 120 square inches
- How should an electric drill be disconnected: A) by pulling on the drills cord B) by pulling the plug at the outlet C) by using a pair of insulated channel lock pliers D) with the chuck key. - ✔ ✔ B) by pulling the plug at the outlet
- A foot has inches ____and a meter has____centinmeters. A) 12 inches,100 centimeters B) 10 inches, l00 centimeters C) 100 inches,12 centimeters D) l0 inches, l00 centimeter - ✔ ✔ A) 12 inches,100 centimeters
- If a natural gas flame is adjusted to produce more than 11.9% carbon dioxide: A) carbon monoxide may be produced B) combustion efficiency will fluctuate C) the flame will be very noisy and will lift off of the burner D) There will be little overall effect. - ✔ ✔ A) carbon monoxide may be produced
C) excess air D) theoretical air - ✔ ✔ A) primary air
- What type of fastener is used to join two electrical conductors: A) electrical coupling B) BX connector C) wire nut D) electrical tape. - ✔ ✔ C) wire nut
- Reading of 7.0" w.c equals: A) 1/4 psig. (1.72kPal) B) ½ psig. (3.45 kPa) C) 3/4 psig.(5.17kPa) D) 1 psig. (6.9kPa) - ✔ ✔ A) 1/4 psig. (1.72kPal)
- Convert 40 Celsius to Fahrenheit: A) 4.04 oF B) 40 oF C) 94 oF D)104 oF - ✔ ✔ D)104 oF
- A Bunsen flame is caused by: A) premixing air and fuel prior to combustion B) not premixing air and fuel prior to combustion
C) a low ignition temperature D) the presence of carbon monoxide. - ✔ ✔ A) premixing air and fuel prior to combustion
- How much air is required to burn 1,000 (28.3 m3) cubic feet of natural gas per hour: A) 100 ft3 (2.83 m3) B) 1,00 ft3 (28.3 m3) C) 10,000 ft3 (283.1 m3) D) 100,000 ft3(2831.7 m3) - ✔ ✔ C) 10,000 ft3 (283.1 m3)
- The heat content of 1 cubic foot propane is approximately: A) 1,000 Btu B) 2,500 Btu C) 10,000 Btu D) 25,000 Btu - ✔ ✔ B) 2,500 Btu
- Carbon dioxide and nitrogen are: A) explosive gases B) inert gases C) neutralizers D) toxins - ✔ ✔ B) inert gases
- The specific gravity of propane vapour is:
D) 3650 oC (6602 oF) - ✔ ✔ C) 3600 oF (1980 oC) 35.Two undesirable products of incomplete combustion are: A) CO and Aldehydes B) CO and N C) CO2 and aldehydes D) CO and heat. - ✔ ✔ A) CO and Aldehydes
- The lower and upper flammable limits of propane in air are: A) 2.0%-11.0% B) 2.4%-9.5% C) 4.0%-14.0% D) 5.5%-14.S% - ✔ ✔ B) 2.4%-9.5%
- The major constituents of flue gases after the proper combustion of natural gas in air are: A) CO, H2O, N2, excess air, and heat. B) H2O,N2, primary air, and heat C) CO2, H2O, N2, O2, and heat D) O2, CO, N2, H2O, and heat - ✔ ✔ C) CO2, H2O, N2, O2, and heat
- The flame temperature of natural gas is approximately: A) 2500 oF (1371 oC) B) 2500 oC (4532 oF)
C) 3600 oF (1980oC) D) 3500 oC (6332 oF) - ✔ ✔ C) 3600 oF (1980oC)
- Carbon monoxide is a product of the incomplete combustion of: A) nitrogen B) oxygen C) a hydrocarbon D) an inorganic compound - ✔ ✔ C) a hydrocarbon
- The specific gravity of natural gas is: A) greater than that of air B) less than that of air C) the same as that of propane D) greater than that of propane - ✔ ✔ B) less than that of air
- A steam boiler shall conform to the requirements of which of the following agencies or organizations: A) the Technical Standards and Safety Authority B) the Heating, Refrigeration and Air Conditioning Institute of Canada C) the American Society of Mechanical Engineers, Technical Standards Division D) the Interprovincial Gas Advisory Council - ✔ ✔ A) the Technical Standards and Safety Authority
educational, recreational, or purposes for the consumption of food and drink: A) commercial building B) assembly building C) industrial building D) care or detention occupancy building - ✔ ✔ B) assembly building
- Any contractor operating under the Gaseous fuels regulation is required to: A) register as a contractor B) inform all employees to comply with the act and regulations C) monitor all employees to ensure that they comply with the act and regulations D) all of the available choices - ✔ ✔ D) all of the available choices
- Welded gas piping must comply with the: A) national building code B) occupational health and safety act and regulations C) technical standards and safety act D) dangerous goods transportation act and regulations - ✔ ✔ C) technical standards and safety act
- Which of the following is covered in the B149.1-05 installation code: A) installation of feedstock gas in chemical plants
B) installation of venting systems C) petroleum refineries D) distribution pipelines - ✔ ✔ B) installation of venting systems
- A G3 technician is allowed to: A) activate all new appliances B) initially activate appliances up to 400,000 Btuh input C) reactivate existing installations of appliances up to 400,000 Btuh D) activate residential appliances only - ✔ ✔ C) reactivate existing installations of appliances up to 400,000 Btuh
- What is the largest size of propane cylinder manufactured: A) 240 Lbs. (109 kg) B) 300 Lbs,. I136kg) C) 420 Ibs (190 kg) D) 1,000 Ibs (454 kg) - ✔ ✔ D) 1,000 Ibs (454 kg)
- In cases at threat to public safety a director may make orders: A) as he sees fit B) that contravene the provisions of the Act C) related to matters that have not been provided in the act D) in languages other than English - ✔ ✔ C) related to matters that have not been provided in the act
A) their right to a hearing with the director B) their obligations and responsibilities under the TSSA act C) the date on which they will receive certification under the act D) suspension of their authorization for a for a failure to pay - ✔ ✔ D) suspension of their authorization for a for a failure to pay
- which organization is responsible for administering fuel regulations for the installation of gas and oil appliances in Ontario: A) technical standards and safety authority B) canadian gas association C) energy mines & resources D) canadian standards association - ✔ ✔ A) technical standards and safety authority
- What is the term for a device that is installed between the appliance and the vent termination and provides mechanical draft? A) mechanical inducer D) power burner C) vent exhauster D) power venter - ✔ ✔ D) power venter
- Which type of pilot burns without turndown throughout the entire time the burner is in service, whether the main burner is firing or not? A) continuous pilot
B) interrupted pilot C) intermittent pilot D) expanding pilot - ✔ ✔ A) continuous pilot
- Which type of pilot is supervised by a primary safety control which must sense the presence of the pilot flame prior to gas being admitted to the main burner: A) proved pilot B) f1ame safeguard control C) intermittent pilot D) monitored pilot system - ✔ ✔ A) proved pilot
- Where the divisional court hears an appeal of a directors ruling, the court's decision is: A) subject to appeal to the supreme court of Ontario B) subject to appeal to the ministry of consumer and business services C) final D) subject to appeal to the federal government. - ✔ ✔ C) final
- Which expression best describes a control intended to prevent an unsafe condition of temperature, pressure or liquid level: A) roll out switch B) safety limit control C) fan control
