Discuss Priming
Write short note on Priming.
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a) The process of filling the suction pipe, casing and a portion of delivery pipe with the liquid to be raised, before starting the pump is defined as Priming .
b) It is done in order to remove any air, gas or vapour from these parts of pump.
c) If a Centrifugal Pump is not primed before starting air pockets inside the impeller, this may give rise to vortices and causes discontinuity of flow.
Define the following: a) Dry air b) Moist air c) Dry bulb temperature d) Wet bulb temperature
Write about the steel sections which are used in the construction.
Which of the air standard cycle (Otto/ Diesel/ Dual) is more efficient for the same heat input? Justify your answer.
What do you understand by Blading Efficiency ?
What is meant by Pump? State its application.
Define the term: a) Bench mark.b) Reduced level.
Define Compression Ratio .
Define – Clearance Ratio of an Air Compressor .
Write about the various disposal methods used for disposing solid, liquid and gaseous waste from power plants?
Explain IC engines with examples and state various classifications of IC engines?
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