Ma 2nd Class Fireman's Practice Exam-With 100% Verified Solutions-

Handholds and manholes are oval A) to withstand higher pressures B) for ease of fabrication C) For better sealing D) for removal from a pressure vessel {Ans: D) for removal from a pressure vessel}On a steam driven boiler feed pump, which piping is larger A) turbine steam inlet and pump discharge B) turbine steam inlet and pump suction C) turbine steam exhaust and pump discharge D) turbine steam exhaust and pump suction {Ans: D) turbine steam exhaust and pump suction}a boiler has a steaming capacity of 34,500 lb of steam/hr. the evaporation rate is 10 lb/ft^2 of heating surface per hour. what is the boiler heating surface? A) 100 B) 1,000 C) 3,450 D) 6,900 {Ans: C) 3,450}An economizer is located in the A) wind box B) Furnace C) stack D) convection section {Ans: C) stack}What chemical is used to control scale A) sodium sulfite B) Sodium sulfate C) Phosphate D) Caustic soda {Ans: C) phosphate}Electric current is measure in A) ohms B) volts C) farads D) amps {Ans: D) amps}