Fluid Mechanics

A. less than 1
B. between 1 and 100
C. 160
D. 200

A. always above the centre line of pipe
B. never above the energy grade line
C. always sloping downward in the direction of flow
D. all of the above

A. always occurs before a separation point
B. always occurs after a separation point
C. is a region of high pressure intensity
D. none of the above

A. less than 1 m/sec
B. 1 m/sec
C. 1.5 m/sec
D. 2 m/sec

A. zero at the pipe wall
B. maximum at the pipe wall
C. independent of shear stress
D. none of the above

A. 1/3 R
B. 1/2 R
C. 2/3 R
D. 3/4R

where R is the radius of pipe

A. the pressure intensity reaches a minimum
B. the cross-section of a channel is reduced
C. the boundary layer comes to rest
D. all of the above

A. 0.1
B. 0.01
C. 0.001
D. 0.0001

A. a circular disc or plate held normal to flow
B. a sphere
C. a cylinder
D. an airfoil

A. highest intensity of pressure occurs around the circumference at right angles to flow
B. lowest pressure intensity occurs at front stagnation point
C. lowest pressure intensity occurs at rear stagnation point
D. total drag is zero