100+ Mechanical Engineering Turbo Machines MCQ Questions and Answers - 2

Question: 6

The continuity equation in compressible fluids is derived on the basis of

(A) conservation of velocity head

(B) conservation of mass

(C) conservation of energy

(D) conservation of momentum

Question: 7

Generally, steam turbines in power stations operate at

(A) 375 rpm

(B) 1000 rpm

(C) 1500 rpm

(D) 3000 rpm

Question: 8

For a jet propulsion unit, ideally the compressor work and turbine work are

(A) equal

(B) unequal

(C) not related to each other

(D) none of the above

Question: 9

Surging is

(A) the reduction in lift force at higher angles of incidence

(B) an unsteady, periodic and reversal of flow in the compressor

(C) the fixed mass flow rate regardless of pressure ratio

(D) none of the above

Question: 10

For gas turbine, compressors used are

(A) axial flow type

(B) centrifugal type

(C) sliding vane type

(D) reciprocating type