TSSA G2 EXAMINERS SET ANSWERS AND
QUESTIONS SET A+
✔✔Which gas meter would be used for a small or mid size commercial installation?
A. Rotary type
B. Tubing type
C. Bellows type
D. Orifice - ✔✔C
✔✔188. On a regulator, what senses (measures) outlet pressure?
A. Restricting element
B. Measuring element
C. Loading element
D. Spring element - ✔✔B
✔✔What is the relief valve setting on a propane cylinder (BBQ)
A. 375 PSI
B. 250 PSI
C. 175 PSI
D. 35 PSI - ✔✔A
✔✔What is the relief valve setting on a propane tank (pressure vessel)
A. 375
B. 250
C. 175
D. 35 - ✔✔B
✔✔What is the output pressure(maximum output pressure) from a first stage regulator?
A. 11.0" w.c.
B. psi
C. 10.0 psi
D. 15.0 psi - ✔✔C
,✔✔What does a gas pressure regulator control?
A. controls inlet pressure
B. controls gas flow
C. Controls downstream pressure
D. Locks out gas flow - ✔✔C
✔✔Clocking a 5 foot dial on a gas meter for 63 seconds what would be the appliance
input?
A. 258,000 BTU
B. 286,000 BTU
C. 268,000 BTU
D. 284,000 BTU - ✔✔B
✔✔What would be the Btu/h output of a 10 kW heater
A. 38,210 Btu/h
B. 36,220 Btu/h
C. 33,150 Btu/h
D. 34,120 Btu/h - ✔✔D
✔✔When sizing capacitors in series, what would be the total capacitance (CT) using
12MFD and 15MFD capacitors?
A. 5.66 CT
B. 6.35 CT
C. 6.97 CT
D. 6.66 CT - ✔✔D
✔✔On a gas regulator, what controls the increase or decrease of gas flow to the
appliance?
A. Restricting element
B. Vent hold
C. Loading element
D. Measuring element - ✔✔A
✔✔Except when permitted, what is the minimum clearance to combustibles from the top
of a gas refrigerator?
A. 2 in.
B. 10 in.
C. 36 in.
D. 12 in - ✔✔12
✔✔What is nitrogen known as?
A. Toxins
B. Explosive gases
C. Inert gas
,D. Neutralizers - ✔✔C
✔✔Which heat is removed or added to cause a change in state without change in
temperature?
A. Sensible heat
B. Radiant heat
C. Latent heat
D. Super heat - ✔✔C
✔✔How would you measure relative humidity?
A. Wet bulb and atmospheric pressure
B. Dry bulb and latent heat of vapour
C. Moisture bulb and wet bulb
D. Wet bulb and dry bulb - ✔✔D
✔✔How are electronic air cleaners wired?
A. in parallel with the appliance blower fan motor
B. in series with the appliance blower fan motor
C. in parallel with the fan
D. in series with the fan - ✔✔A
✔✔The function of a fixed draft hood is to ensure:
A. negative over fire draft
B. positive over fire draft
C. zero (neutral) over fire draft
D. variable over fire draft condition - ✔✔C
✔✔What would be the minimum distance that a dryer vent can terminate from a gas
meter?
A. 3 ft.
B. 6 ft.
C. 1 ft.
D. 10 ft. - ✔✔A
✔✔For a low-pressure steam boiler what would be the maximum steam pressure
setting?
A. 30 psig
B. 25 psig
C. 10 psig
D. 15 psig - ✔✔30 psig
✔✔For a steam boiler, what would be the most important safety control?
A. Flame scanner
B. Flame roll out switch
, C. Low water cut off
D. High limit steam lock out control - ✔✔C
✔✔If an appliance is less than 83% efficient and non-positive it would be considered a?
A. Category II
B. Category I
C. Category IV
D. Category III - ✔✔B
✔✔Installation of a propane tank under 1000 USWG what would be the minimum
distance from a regulator to a building opening?
A. 30'
B. 15'
C. 10'
D. 3' - ✔✔D
✔✔On a hydronic heater system what control responds to a load change?
A. Low water cut off
B. Expansion tank
C. Flow switch
D. Aquastat - ✔✔C
✔✔On a pressuretrol, the main burner starts on?
A. Pressure rise
B. Water level
C. Pressure differential
D. Steam system output - ✔✔C
✔✔What is the minimum distance that a vent from an appliance with an input of
101,000 btu/h can be from a non-mechanical air supply?
A. 1 ft.
B. 2 ft.
C. 3 ft
D. 6 ft. - ✔✔C
✔✔Can a gas log fireplace be installed in a sleeping quarter?
A. Yes, if proper air supply is added
B. Yes, if the venting is over sized
C. No, even if new venting is installed
D. Yes, only if its a bed sitting room - ✔✔D
✔✔If the flue gases are removed from the front of the appliance we could assume that
it's a?
A. 1 to 3 flue pass boiler
QUESTIONS SET A+
✔✔Which gas meter would be used for a small or mid size commercial installation?
A. Rotary type
B. Tubing type
C. Bellows type
D. Orifice - ✔✔C
✔✔188. On a regulator, what senses (measures) outlet pressure?
A. Restricting element
B. Measuring element
C. Loading element
D. Spring element - ✔✔B
✔✔What is the relief valve setting on a propane cylinder (BBQ)
A. 375 PSI
B. 250 PSI
C. 175 PSI
D. 35 PSI - ✔✔A
✔✔What is the relief valve setting on a propane tank (pressure vessel)
A. 375
B. 250
C. 175
D. 35 - ✔✔B
✔✔What is the output pressure(maximum output pressure) from a first stage regulator?
A. 11.0" w.c.
B. psi
C. 10.0 psi
D. 15.0 psi - ✔✔C
,✔✔What does a gas pressure regulator control?
A. controls inlet pressure
B. controls gas flow
C. Controls downstream pressure
D. Locks out gas flow - ✔✔C
✔✔Clocking a 5 foot dial on a gas meter for 63 seconds what would be the appliance
input?
A. 258,000 BTU
B. 286,000 BTU
C. 268,000 BTU
D. 284,000 BTU - ✔✔B
✔✔What would be the Btu/h output of a 10 kW heater
A. 38,210 Btu/h
B. 36,220 Btu/h
C. 33,150 Btu/h
D. 34,120 Btu/h - ✔✔D
✔✔When sizing capacitors in series, what would be the total capacitance (CT) using
12MFD and 15MFD capacitors?
A. 5.66 CT
B. 6.35 CT
C. 6.97 CT
D. 6.66 CT - ✔✔D
✔✔On a gas regulator, what controls the increase or decrease of gas flow to the
appliance?
A. Restricting element
B. Vent hold
C. Loading element
D. Measuring element - ✔✔A
✔✔Except when permitted, what is the minimum clearance to combustibles from the top
of a gas refrigerator?
A. 2 in.
B. 10 in.
C. 36 in.
D. 12 in - ✔✔12
✔✔What is nitrogen known as?
A. Toxins
B. Explosive gases
C. Inert gas
,D. Neutralizers - ✔✔C
✔✔Which heat is removed or added to cause a change in state without change in
temperature?
A. Sensible heat
B. Radiant heat
C. Latent heat
D. Super heat - ✔✔C
✔✔How would you measure relative humidity?
A. Wet bulb and atmospheric pressure
B. Dry bulb and latent heat of vapour
C. Moisture bulb and wet bulb
D. Wet bulb and dry bulb - ✔✔D
✔✔How are electronic air cleaners wired?
A. in parallel with the appliance blower fan motor
B. in series with the appliance blower fan motor
C. in parallel with the fan
D. in series with the fan - ✔✔A
✔✔The function of a fixed draft hood is to ensure:
A. negative over fire draft
B. positive over fire draft
C. zero (neutral) over fire draft
D. variable over fire draft condition - ✔✔C
✔✔What would be the minimum distance that a dryer vent can terminate from a gas
meter?
A. 3 ft.
B. 6 ft.
C. 1 ft.
D. 10 ft. - ✔✔A
✔✔For a low-pressure steam boiler what would be the maximum steam pressure
setting?
A. 30 psig
B. 25 psig
C. 10 psig
D. 15 psig - ✔✔30 psig
✔✔For a steam boiler, what would be the most important safety control?
A. Flame scanner
B. Flame roll out switch
, C. Low water cut off
D. High limit steam lock out control - ✔✔C
✔✔If an appliance is less than 83% efficient and non-positive it would be considered a?
A. Category II
B. Category I
C. Category IV
D. Category III - ✔✔B
✔✔Installation of a propane tank under 1000 USWG what would be the minimum
distance from a regulator to a building opening?
A. 30'
B. 15'
C. 10'
D. 3' - ✔✔D
✔✔On a hydronic heater system what control responds to a load change?
A. Low water cut off
B. Expansion tank
C. Flow switch
D. Aquastat - ✔✔C
✔✔On a pressuretrol, the main burner starts on?
A. Pressure rise
B. Water level
C. Pressure differential
D. Steam system output - ✔✔C
✔✔What is the minimum distance that a vent from an appliance with an input of
101,000 btu/h can be from a non-mechanical air supply?
A. 1 ft.
B. 2 ft.
C. 3 ft
D. 6 ft. - ✔✔C
✔✔Can a gas log fireplace be installed in a sleeping quarter?
A. Yes, if proper air supply is added
B. Yes, if the venting is over sized
C. No, even if new venting is installed
D. Yes, only if its a bed sitting room - ✔✔D
✔✔If the flue gases are removed from the front of the appliance we could assume that
it's a?
A. 1 to 3 flue pass boiler
