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31.

Stream lines and path lines always coincide in case of                        
A. steady flow B. laminar flow
C. uniform flow D. turbulent flow



32.

Equation of continuity is based on the principle of conservation of                        
A. mass B. energy
C. momentum D. none of the above



33.

In steady flow of a fluid, the total accele ration of any fluid particle                        
A. can be zero B. is never zero
C. is always zero D. is independent of coordinates




34.

The pitot tube is used to measure                        
A. velocity at stagnation point B. stagnation pressure
C. static pressure D. dynamic pressure



35.

Hot wire anemometer is used to measure                        
A. discharge B. velocity of gas
C. pressure intensity of gas D. pressure intensity of liquid



36.

The theoretical value of coefficient of contraction of a sharp edged orifice is                        
A. 0.611 B. 0.85
C. 0.98 D. 1



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