Mechanical Engineering MCQs

Page No. 165

Breeder reactor has a conversion ratio of_____________________?


aunity


bmore than unity


cless than unity


dzero


View Answer more than unity

One gram of uranium will produce energy equivalent to approximately____________________?


a1 tonne of high grade coal


b4.5 tonnes of high grade coal


c10 tonnes of high grade coal


d100 tonnes of high grade coal



Boiling water reactor employs__________________?


aboiler


bdirect cycle of coolant system


cdouble circuit system of coolant cycle


dmulti pass system



The total energy released in fission of U is__________________?


a5 MeV


b10 MeV


c199 MeV


d168 MeV


View Answer 199 MeV

A nuclear unit becoming critical means_______________?


ait is generating power to rated capacity


bit is capable of generating much more than rated capacity


cthere is danger of nuclear spread


dchain reaction that causes automatic splitting of the fuel nuclei has been established



Which is not identical for an atom and an isotope_________________?


amass number


batomic number


cchemical properties


dposition in periodic table


View Answer mass number

Atomic number of an element in the periodic table represents the numbers of_________________?


aprotons in the nucleus


belectrons in me nucleus


cneutrons in the nucleus


delectrons in the atom



In a centrifugal pump casing, the flow of water leaving the impeller, is___________________?


arectilinear flow


bradial flow


cfree vortex motion


dforced vortex


View Answer free vortex motion

For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred_________________?


acentrifugal


baxial flow


creciprocating


dmixed flow


View Answer axial flow

High specific speed of a pump implies it is_____________________?


acentrifugal pump


bmixed flow pump


caxial flow pump


dany one of the above


View Answer axial flow pump

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