Gas Fitter 2 Practice Test Questions And Answers 100% Verified A+ Guaranteed

A low water cut off device on an automatically fired hot water heating boiler rated at 450,000Btuh is: a) Not required if a limit control is installed b) Not required if it is installed in an industrial application c) Always required d) Required only in commercial applications. {Ans: C}If too many lava rocks are placed in the rack of a barbeque: a) The burner will burn out prematurely, b) The food will cook faster, c) The food will cook slower, d) Delayed ignition will occur. {Ans: A}When two 10 ohm resistors are connected in parallel, what is the net result? a) 0 ohms b) 5 ohms c) 10 ohms d) 20 ohms. {Ans: B}A blue flame is the result of mixing primary air with gas prior to ignition. What is this type of flame referred to as? a) A Bunsen flame b) A luminous flame c) A gas rich flame d) An air rich flame. {Ans: A}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. {Ans: C}What type