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DC 1st Class Boiler Exam Questions And Answers 2025/2026

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DC 1st Class Boiler Exam Questions And Answers 2025/2026 Moving blading in which space between blades is the same size at the blading inlet, and the blading outlet. - Correct Answer Impulse Blading To blowdown a boiler equipped with a quick opening and slow opening valve on the bottom blowdown line, the_________. - Correct Answer quick opening valve is opened first and closed last. Hardness of water is the measurement in ppm of ________ and ________ in the water. - Correct Answer calcium and magnesium A pump delivers 175 gallons per minute against a pressure of 55 psi; the suction pressure is 15 psi. If a pump is 80% efficient, what is the horsepower needed? - Correct Answer HP=5.1 HP= (Head in Feet) x (Weight in Lbs.)/ 33,000 x Efficiency a duplex double-acting reciprocating feed water pump has____ - Correct Answer two steam Pistons 2 to 2 2/2 times larger in area than the water piston Name a technique to control the nitrous oxide emissions. - Correct Answer Selective Catalytic Reduction

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  • moving blading in which space between blades is th
  • hardness of water is the measurement in ppm of
  • a pump delivers 175 gallons per minute against a p
  • name a technique to control the nitrous oxide emis

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