What is the btu c - Study guides, Class notes & Summaries

Stationary Engineer License Exam Prep with Complete Solutions A ______ fuse is necessary for a circuit with a load of 21,000 watts and a voltage of 220 volts. A. 100 B. 150 C. 175 D. 200 A. 100 amps. Note: V = IR Therefore I = V/R 21,000 amps /220 volts = 95 amps At 0 psig, how many BTU's are required to change 1 lb of water at 212F to steam? A. 144 B. 180 C. 970 D. 1190 C. 970 BTU 3 multiple choice options Radiation is: A. the movement of liquids or gases created by a tem...

Gas Fitter 2 Practice Test - Questions and Answers Installation of one 400,000 btu natural draft boiler in a tight enclosure would require an air supply opening of? A. 114 sq in B. 50 sq in C. 58 sq in D 112 sq in With the installation of a 75,000 btu atmospheric hot water tank in a tight house, how much free air is required when using a round duct? A. 11" B. 4" C. 7" D. 3" A portable infrared heater that cannot be interlocked shall be connected to a: A. CO2 monitor alarm B. CO monitor ala...

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above - Answer-d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% d. +30% - Answer-c (+15%) The maximum sensible cooling capacity of a heat pump shou...

MN Boiler License Questions a question - correct answer an answer what are the conditions necessary for good combustion? a) low sulfur content b) Thermal, thermocoupler, tubular c) turbulence, temperature, time 3T's - correct answer c) turbulence, temperature, time 3T's why is secondary air necessary in hand fired boilers? a) Necessary to burn the combustible gases b) if primary air should fail c) used only if sulfur content is high - correct answer a) Necessary to burn the comb...

Q-01 FDNY Exam Questions With Correct Answers Latest Updated 2023/2024 (Verified ). Butterfly valve: where can it be used? - Correct Answer-Can be used on the inlet and outlet of a water pump What electrical motor protection device automatically resets itself? - Correct AnswerThe thermal protector 746 watts equals how many kilowatt hours? - Correct Answer-.746 kilowatt hours What position is the liquid line service valve normally in? - Correct Answer-Back-seated In an operating evaporator, ...

Stationary Engineer Exam - Questions and Answers (Complete Solutions) How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? 7 feet On a gas fired boiler what is the proper gas to air mixture 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hardness of 12 ppm? TH= (Ca x 2....

Stationary Engineer Exam Questions and Answers Latest 2024/2025 (GRADED A+) How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? - Answer 7 feet On a gas fired boiler what is the proper gas to air mixture - Answer 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hard...

Scope of API 510 4 in service activities 4 construction code oddities what is the purpose? In-service inspection, repair, alteration and rerating. Pressure vessels and PRD's All in-service hydrocarbon and chemical process vessels. Unless voided by RBI 1.2.2 A) Vessels constructed under a construcion code. ASME BPVC B) vessel constructed without a code C) vessel constucted under special jurisdictional acceptance D) vessel constructed under code but lost is nameplate or stamp. Nonstandar...

Stationary Engineer Exam Questions and Answers Latest (GRADED A+) How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? - Answer 7 feet On a gas fired boiler what is the proper gas to air mixture - Answer 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hardness of 1...

MN Boiler License Exam Questions and Answers, Latest Update 2024/2025 (GRADED) what are the conditions necessary for good combustion? a) low sulfur content b) Thermal, thermocoupler, tubular c) turbulence, temperature, time 3T's - answerc) turbulence, temperature, time 3T's why is secondary air necessary in hand fired boilers? a) Necessary to burn the combustible gases b) if primary air should fail c) used only if sulfur content is high - answera) Necessary to burn the combustible gases...