QUESTIONS AND VERIFIED ANSWERS
A chimney connector must extend how far into a chimney -
correct answer- even with the inner wall of chimney
A decorative fuel gas appliance installed in a vented fireplace
must be provided with : - correct answer- fireplace
screen
A decorative fuel gas appliance installed in a vented fireplace
shall - correct answer- be vented through the fireplace
flue have a rated capacity exceeding 650 BTU / hr . be provided
with a manual shutoff valve
A decorative fuel gas appliance installed in a vented fireplace
shall not : - correct answer- be thermostatically
controlled
A shut - off valve must be within ____ feet of the entrance to the
gas train ? - correct answer- 6
,A vacuum is considered to be any pressure that is - correct
answer- Less than atmospheric pressure (14.7 psi)
An " apprentice gas fitter " is a person who is learning and
working at the business of gas fitting under the direct
supervision of a - correct answer- master gas fitter
Any gas piping system exceeding / PSIG 14 " W.C. ) must be
installed in accordance with : - correct answer- 248 CMR
5.0
Apprentice plumber , apprentice gas fitter , or MA Lic . LP
Installer - correct answer- Must show license when
asked by the Inspector
Assurning a furnace rated at 130,000 BTU / hr , and a water
heater rated at 50,000 BTU / hr in a room 6'x6'x7 ' high ,
calculate , when using indoor air and the two - opening method ,
the two openings using metal louvers in sq . in . - correct
answer- 50
Before piping is connected to an appliance , the licensee must :
- correct answer- test the complete system
, Can CSST be connected to an external meter ? - correct
answer- No
Can you vent into a mechanical vent under a positive pressure ?
- correct answer- no
Care should be exercised in a trench to prevent the pipe from
moving from its bearing when - correct answer- Flooding
backfill material to compact ✓
CSST shall be sleeved when passing through a metal or concrete
deck to protect the integrity of the tubing .. The sleeve shall be
of what material ? - correct answer- schedule 40 pipe
Decorative gas appliance in a vented fireplace must have ? -
correct answer- Screen door
Draft hoods should not be installed in the following manner
except : - correct answer- in the same room as a gas
boiler