g3 quiz |Questions with detailed solutions
what is combustion air
a)the air required to operate the blower fan
b)the air needed for the draft regulator
c)the air required for satisfactory combustion of. gas with excess air
d)the air required for complete furnace operation - -c)the air required for satisfactory
combustion of. gas with excess air
-how far should be the base of a ladder is from the building If the ladder is 36 feet high
a)10 ft
b) 10.5 ft
c)12.5 ft
d)12 ft - -a)10 ft
-what does MSDS stand for?
a) material safety disconnect switch
b) mandatory safety data sheet
c) material safety data sheet
d)material safety daily sheet - -c) material safety data sheet
-for self protection you would need
a) hard hat, gloves, glasses
b)glasses, boots, respiratory
c)respiratory, gloves, hard hat
d) all the above - -d) all the above
-a ladder must extend above roof landing by
a) 30"
b)36"
c)38"
d)24" - -b)36"
-what is the explosion limit of natural gas
a)0.4% to 0.14%
b)10% to 1%
c)3% to 15%
d)4% to 14% - -d)4% to 14%
-what is the ignition temperature of natural gas
a) 1020 F
b) 1000 F
c)1200 F
d)900 F - -c)1200 F
,-what is the flame termperature of natural gas
a)1000 F
B)2025F
C)3500 F
D)3600 F - -3500 F
-what is the air to gas ratio for propane
a) 23to 1
b)10.5 to 1
c)1 to 10
d) 32.5 to 1 - -a)23 to 1
-what is the expansion rate of propane
a) 600 to 1
b)270 to 1
c)10 to 1
d)1 to 600 - -b)270 to 1
-what is the heating value of natural gas
a)2025 BTU
b)1200 BTU
c)3500 BTU
d)1000 BTU - -d)1000 BTU
-who s the testing agency that certifies venting
a) CGA
B) TSSA
C)ULC
D) CSA - -C)ULC
-what is the relief pressure of a propane tank
a) 250 psig
b)275 psig
c)350 psig
d)375 psig - -d)375 psig
-who issues gas technician certificates in Ontario
a) Ontario code regulation permits
b)T.S.A certification gas codes
c)C.S.A regulation and certification
d)technical standard safety authority - -d)technical standard safety authority
-what is the flammability range of CO
a)4% to 14%
b)2.5 % to 5.5%
c)12% to 74%
, d)23.5% to 10% - -c)12% to 74%
-what are the products of complete combustion
a) carbon dioxide, nitrogen, soot, heat
b) heat, water, hydrogen, oxygen
c)water, carbon dioxide, oxygen, dioxide
d)carbon dioxide, water, heat - -d)carbon dioxide, water, heat
-what is needed to start combustion
a) fuel, carbon dioxide, air
b)ignition, air, fuel,
c) fuel, air, hydrogen,
d) ignition, propane, nitrogen - -b)ignition, air, fuel,
-what is the air needed to operate a gas appliance safely
a) primary air, mixing air, free air,
b)combustion air, excess air, dilution air
c) secondary air, primary air, natural air
d)venting air, oxygen, excess air - -b)combustion air, excess air, dilution air
-what is the boiling point of natural gas
a)-258 c
b)-258 f
c)257 f
d)285 f - -b)-258 f
-what is the relative density of propane gas
a) 152
b)0.6
c)1.52
d)0.06 - -c)1.52
-what is the air comprised of
a)20% nitrogen 8% oxygen
b)80% nitrogen 20% oxygen
c) 80% oxygen 20% nitrogen
d) 80 hydrocarbon 20% excess air - -b)80% nitrogen 20% oxygen
-what are the products of incomplete combustion
a)carbon dioxide, water, soot, heat
b)carbon monoxide, soot, water, air
c)soot, aldehydes, carbon monoxide, heat
d)aldehydes, carbon monoxide, soot - -b)carbon monoxide, soot, water, air
-what type of air is premixed with gas prior to ignition
a)excess air
what is combustion air
a)the air required to operate the blower fan
b)the air needed for the draft regulator
c)the air required for satisfactory combustion of. gas with excess air
d)the air required for complete furnace operation - -c)the air required for satisfactory
combustion of. gas with excess air
-how far should be the base of a ladder is from the building If the ladder is 36 feet high
a)10 ft
b) 10.5 ft
c)12.5 ft
d)12 ft - -a)10 ft
-what does MSDS stand for?
a) material safety disconnect switch
b) mandatory safety data sheet
c) material safety data sheet
d)material safety daily sheet - -c) material safety data sheet
-for self protection you would need
a) hard hat, gloves, glasses
b)glasses, boots, respiratory
c)respiratory, gloves, hard hat
d) all the above - -d) all the above
-a ladder must extend above roof landing by
a) 30"
b)36"
c)38"
d)24" - -b)36"
-what is the explosion limit of natural gas
a)0.4% to 0.14%
b)10% to 1%
c)3% to 15%
d)4% to 14% - -d)4% to 14%
-what is the ignition temperature of natural gas
a) 1020 F
b) 1000 F
c)1200 F
d)900 F - -c)1200 F
,-what is the flame termperature of natural gas
a)1000 F
B)2025F
C)3500 F
D)3600 F - -3500 F
-what is the air to gas ratio for propane
a) 23to 1
b)10.5 to 1
c)1 to 10
d) 32.5 to 1 - -a)23 to 1
-what is the expansion rate of propane
a) 600 to 1
b)270 to 1
c)10 to 1
d)1 to 600 - -b)270 to 1
-what is the heating value of natural gas
a)2025 BTU
b)1200 BTU
c)3500 BTU
d)1000 BTU - -d)1000 BTU
-who s the testing agency that certifies venting
a) CGA
B) TSSA
C)ULC
D) CSA - -C)ULC
-what is the relief pressure of a propane tank
a) 250 psig
b)275 psig
c)350 psig
d)375 psig - -d)375 psig
-who issues gas technician certificates in Ontario
a) Ontario code regulation permits
b)T.S.A certification gas codes
c)C.S.A regulation and certification
d)technical standard safety authority - -d)technical standard safety authority
-what is the flammability range of CO
a)4% to 14%
b)2.5 % to 5.5%
c)12% to 74%
, d)23.5% to 10% - -c)12% to 74%
-what are the products of complete combustion
a) carbon dioxide, nitrogen, soot, heat
b) heat, water, hydrogen, oxygen
c)water, carbon dioxide, oxygen, dioxide
d)carbon dioxide, water, heat - -d)carbon dioxide, water, heat
-what is needed to start combustion
a) fuel, carbon dioxide, air
b)ignition, air, fuel,
c) fuel, air, hydrogen,
d) ignition, propane, nitrogen - -b)ignition, air, fuel,
-what is the air needed to operate a gas appliance safely
a) primary air, mixing air, free air,
b)combustion air, excess air, dilution air
c) secondary air, primary air, natural air
d)venting air, oxygen, excess air - -b)combustion air, excess air, dilution air
-what is the boiling point of natural gas
a)-258 c
b)-258 f
c)257 f
d)285 f - -b)-258 f
-what is the relative density of propane gas
a) 152
b)0.6
c)1.52
d)0.06 - -c)1.52
-what is the air comprised of
a)20% nitrogen 8% oxygen
b)80% nitrogen 20% oxygen
c) 80% oxygen 20% nitrogen
d) 80 hydrocarbon 20% excess air - -b)80% nitrogen 20% oxygen
-what are the products of incomplete combustion
a)carbon dioxide, water, soot, heat
b)carbon monoxide, soot, water, air
c)soot, aldehydes, carbon monoxide, heat
d)aldehydes, carbon monoxide, soot - -b)carbon monoxide, soot, water, air
-what type of air is premixed with gas prior to ignition
a)excess air
