Absa Finals

Engineering ABSA FINALS EXAM QUESTIONS WITH CORRECT VERIFIED ANSWERS | 100% PASS (A+ CERTIFIED) A centrifugal pump consists of Answer an impeller surrounded by a casing a circulating pump is usually Answer a once through device A diffuser pump Answer has stationary guide vanes surrounding impeller and has a higher efficiency than volume type a double-acting pump Answer is a positive displacement pump a high pressure pump is the Engineering Answer volute a hot water heating system circulator should Answer be directly coupled a multi stage pump would be used when Answer the head is great a pump is capable of suction lift due to Answer atmospheric pressure a positive displacement stand by-pump will have the Answer suction valve open and the discharged closed a rotary pump Answer should be equipped with a relief valve Engineering a volute type pump Answer reduces the velocity in the discharge nozzle cavitation of a pump refers to, when the Answer pump is filled with vapor Centrifugal pumps conver rotating mechanical energy into kinetic energy then Answer into potential as pressure centrifugal pumps do not develop good suction lift because Answer they favour pressure than volume pumps handling cryogenic materials operate Answer at extremely low temperature rotary pumps should be started with the discharge valve open, because they are Engineering Answer positive displacement pumps the capacity of a centrifugal pump should only be reduced by Answer throttling the suction valve rotary pumps Answer are high pressure and are positive displacement pumps