a) H1/2
b) H3’2
c) H5/2
d) H5’4 where H is head.
Ans: c
Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by | FLUID MECHANICS
a) 5%
b) 10%
c) 15%
d) 20%
Ans: a
Size of a venturimeter is specified by | FLUID MECHANICS
a) pipe diameter
b) throat diameter
c) angle of diverging section
d) both pipe diameter as well as throat diameter
Ans: a
Select the incorrect statement. | FLUID MECHANICS
a) The pressure intensity at vena contracta is atmospheric.
b) Contraction is least at vena contracta.
c) Stream lines are parallel throughout the jet at vena contracta.
d) Coefficient of contraction is always less than one.
Ans: c
Which of the following is used to measure the discharge ? | FLUID MECHANICS
a) current meter
b) venturimeter
c) pitot tube
d) hotwire anemometer
Ans: b
The theoretical value of coefficient of contraction of a sharp edged orifice is | FLUID MECHANICS
a) 0.611
b) 0.85
c) 0.98
d) 1.00
Ans: a