Gas technician - G1 Gap Exam
Questions & Answers (Grade A+)
Spillage of flue gases at the appliance draft diverter would indicate
that? -
correct answer ✅the venting system of the appliance is restricted
draft that is caused by the pressure difference of flue gases rising in
a chimney is called? -
correct answer ✅natural thermal draft
Draft intensity in a chimney increases as the temperature of flue
gases rise? -
correct answer ✅true
which of the following weather conditions will result in the highest
draft conditions? -
correct answer ✅cold, dry weather in winter
what is a draft control device? -
correct answer ✅a draft hood or draft regulator
a vent system that can only be used with an appliance that the vent
system has been tested and approved with is called? -
correct answer ✅special venting system
, Gas technician - G1 Gap Exam
Questions & Answers (Grade A+)
the function of a fixed draft hood is to insure? -
correct answer ✅zero over fire draft
what is the term for a device that is installed between the appliance
and the vent termination and provides mechanical draft? -
correct answer ✅draft inducer
what is the minimum internal area of the tile lined chimney in
square inches for a single natural draft appliance having an input of
400,000btuh where the single-wall vent connector lateral is 10 feet
and the chimney height is 30 feet?
The building is not considered tight -
correct answer ✅78 square inches - NAT / MAX column 6.6 table
if the venting tables allow a smaller vent size than the flue collar of
the appliance, you can use smaller vent size? -
correct answer ✅if the flue collar is greater than 4in
A water heater with a draft deverter s=is to be connected to a type
b vent stack by itself. The height is demermined to be 16' and the
input is 55,000 btuh, the B-vent is connected directly to the water
Questions & Answers (Grade A+)
Spillage of flue gases at the appliance draft diverter would indicate
that? -
correct answer ✅the venting system of the appliance is restricted
draft that is caused by the pressure difference of flue gases rising in
a chimney is called? -
correct answer ✅natural thermal draft
Draft intensity in a chimney increases as the temperature of flue
gases rise? -
correct answer ✅true
which of the following weather conditions will result in the highest
draft conditions? -
correct answer ✅cold, dry weather in winter
what is a draft control device? -
correct answer ✅a draft hood or draft regulator
a vent system that can only be used with an appliance that the vent
system has been tested and approved with is called? -
correct answer ✅special venting system
, Gas technician - G1 Gap Exam
Questions & Answers (Grade A+)
the function of a fixed draft hood is to insure? -
correct answer ✅zero over fire draft
what is the term for a device that is installed between the appliance
and the vent termination and provides mechanical draft? -
correct answer ✅draft inducer
what is the minimum internal area of the tile lined chimney in
square inches for a single natural draft appliance having an input of
400,000btuh where the single-wall vent connector lateral is 10 feet
and the chimney height is 30 feet?
The building is not considered tight -
correct answer ✅78 square inches - NAT / MAX column 6.6 table
if the venting tables allow a smaller vent size than the flue collar of
the appliance, you can use smaller vent size? -
correct answer ✅if the flue collar is greater than 4in
A water heater with a draft deverter s=is to be connected to a type
b vent stack by itself. The height is demermined to be 16' and the
input is 55,000 btuh, the B-vent is connected directly to the water
