Fluid Mechanics

A. L/4
B. L/3
C. L/2
D. L

A. 1 m
B. 10m
C. 100m
D. none of the above

A. the head loss is same through each pipe
B. the discharge is same through each pipe
C. a trial solution is not necessary
D. the discharge through each pipe is added to obtain total discharge

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 slog 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