1|Page
G2 EXAM PREPARATION VERSION 2 NEWEST 2026
COMPLETE 300 QUESTIONS AND100% CORRECT
ANSWERS (VERIFIED AND GRADED A+||BRAND NEW
!!!!)
When a Gas Fired Appliance is vented into a chimney flue
serving an appliance which burns a solid fuel in a
Commercial or Industrial application, How shall the Vent
from the Gas Appliance be installed? - ANSWER-Through
a separate Flue opening above the Flue Pipe connection
from the other appliance
A draft hood will prevent what? - ANSWER-A down draft
from entering an appliance
,2|Page
A receptacle-mounted ground fault interrupter protects
against? - ANSWER-Current flow to ground
When a draft control is required; which of the following
appliances would utilize a single acting type draft regulator
- ANSWER-An incinerator
A fire tube boiler had - ANSWER-Water outside the tube
and glue gases inside
What is the minimum clearance from combustibles
materials to a single wall vent connector from a conversion
burner with a draft hood - ANSWER-9"
,3|Page
What is the point where two metals are joined in a
thermocouple - ANSWER-Hot junction
The Ontario building code requires that master bedrooms
must have a minimum ventilation air supply of - ANSWER-
20CFM
The primary function of a surge arrestor in the top of a
regulator is to - ANSWER-Reduce the opening speed of
the regulator
As the temperature of a thermistor increases, the current
flow through it - ANSWER-Increases
, 4|Page
As the length of a conductor increases - ANSWER-It's
resistance increases
A propane vaporizer shall not raise the pressure in the
tank in excess of - ANSWER-215psig (1500 kPa)
In a domestic heat pump application, what is the minimum
volume of supply air (CFM) per ton of cooling required -
ANSWER-450CFM
In domestic air conditioning applications, what is the
minimum volume of supply air (CFM) per ton of cooling -
ANSWER-400CFM
G2 EXAM PREPARATION VERSION 2 NEWEST 2026
COMPLETE 300 QUESTIONS AND100% CORRECT
ANSWERS (VERIFIED AND GRADED A+||BRAND NEW
!!!!)
When a Gas Fired Appliance is vented into a chimney flue
serving an appliance which burns a solid fuel in a
Commercial or Industrial application, How shall the Vent
from the Gas Appliance be installed? - ANSWER-Through
a separate Flue opening above the Flue Pipe connection
from the other appliance
A draft hood will prevent what? - ANSWER-A down draft
from entering an appliance
,2|Page
A receptacle-mounted ground fault interrupter protects
against? - ANSWER-Current flow to ground
When a draft control is required; which of the following
appliances would utilize a single acting type draft regulator
- ANSWER-An incinerator
A fire tube boiler had - ANSWER-Water outside the tube
and glue gases inside
What is the minimum clearance from combustibles
materials to a single wall vent connector from a conversion
burner with a draft hood - ANSWER-9"
,3|Page
What is the point where two metals are joined in a
thermocouple - ANSWER-Hot junction
The Ontario building code requires that master bedrooms
must have a minimum ventilation air supply of - ANSWER-
20CFM
The primary function of a surge arrestor in the top of a
regulator is to - ANSWER-Reduce the opening speed of
the regulator
As the temperature of a thermistor increases, the current
flow through it - ANSWER-Increases
, 4|Page
As the length of a conductor increases - ANSWER-It's
resistance increases
A propane vaporizer shall not raise the pressure in the
tank in excess of - ANSWER-215psig (1500 kPa)
In a domestic heat pump application, what is the minimum
volume of supply air (CFM) per ton of cooling required -
ANSWER-450CFM
In domestic air conditioning applications, what is the
minimum volume of supply air (CFM) per ton of cooling -
ANSWER-400CFM
