Gas fitter 2 practice test Questions and
answers with 100% Complete Solutions |
verified &updated 2024
What type of room heater maybe installed in a bathroom?
A. Natural draft
B. Direct fired
C. Forced draft
D. Direct vent - ✔✔D
What safety control protects a steam boiler if the condensate pump fails to return
water to the boiler?
A. High pressure limit control
B. Low pressure limit control
,C. Flame safeguard control
D. Low water cut off - ✔✔D
The relief valve for a residential low-pressure hot water boiler system should be?
A. 14.7 psia
B. 15 psia
C. 30 psig
D. 30 psia - ✔✔C
A backflow prevent used in a boiler system should be located in the:
A. Over flow line connected to the drain
B. Return line close to the boiler
C. 1/4" line connecting the boiler and cushion tank
D. Make up water line to the system - ✔✔B
,Automatic chlorinators must be installed:
A. upstream of the heater
B. downstream of the heater
C. upstream of the filter
D. downstream of the filter - ✔✔B
On seasonal start up, a pool heater should run:
intermittently
continuously for 24 hours
continuously until the thermostat is satisfied
one hour on and one hour off until the thermostat is satisfied - ✔✔C
Before lighting a burner in a steam boiler, ensure that:
A. there is water in the boiler
B. the temperature controller is set properly
, C. the main burner test firing valve is turned on
D. the safety valves are open - ✔✔A
The recommended water temperature setting from a mixing valve to the
domestic water system in combination heating systems that employ oil-fired
water heaters for heating potable water and for space heating is:
A. 43°C (110°F)
B. 49°C to 54°C (120°F to 130°F)
C. 60°C to 66°C (140°F to 150°F)
D. 83°C (180°F) - ✔✔B
An inverted sensor (measures water level) can be found operating what type
of appliance?
A. Hot water boiler
B. Steam water boiler
C. Domestic hot water storage tank
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