1-According to equation of continuity when water falls its speed increase,
while it cross sectional area:
A.
increase
B. descrease
C.
remain same
D.
different
2-If layers of fluid has frictional force between them then it is known as:
A. viscous
B.
non-viscous
C.
incompressible
D.
both a & b
3-Venturi relation is one of application of the
A.
equation of continuity
B. Bernoulli's equation
C.
light equation
D.
speed equation
4-Simplified equation of continuity is represented as:
A. A1v1 = A2v2
B.
A1v2 = A2v2
C.
A1v1 = A1v2
D.
A2v1 = A1v1
5-If every particle of fluid has irregular flow, then flow is said to be:
A. Laminar flow
B.
Turbulent flow
C. Fluid flow
6-Viscosity of air at 30 centigrade is:
A.
0.019
B. 1.295
C. 0.514
D. 2.564
7-If every particle of fluid follow same path, then flow is said to be:
A.
Laminar flow
B. Turbulent flow
C. Fluid flow
D. Both a & b
8-Chimney works best on principle of:
A. Equation of continuity
B.
Bernoulli’s equation
C. Light equation
D. Speed equation
9-Net force acting on a droplet of water is equal to the:
A.
Weight-drag force
B. Weight+drag force
C. Weight*drag force
D. Weight/drag force
10-Well known formula one racing car has a body with:
A. Laminated design
B. Turbulent design
C. Flat design
D.
Streamlined design
11-Viscosity of ethanol at 30 degree is:
A. 0.801
B.
1
C. 1.6
D. 6.29
12-Volume of droplet having radius 0.1 m will be
A.
4.2 * 10-3
B. 2 * 10-3
C. 5.2 * 10-3
D. 4 * 10-3
13-Water flowing through hose having diameter 1 cm as speed of 1 ms-1 if
water is to emerge at 21 ms-1 then diameter of nozzle is:
A.
0.2 cm
B. 0.1 cm
C. 0.02 cm
D. 0.01 cm
14-Change in potential energy is measured as different of:
A. Mgf
B.
Mgh
C. Mg
D. Mgt
15-If fluid has constant density then it is said to be:
A. Thick
B. In-viscous
C. Compressible
D.
Incompressible
16-Change in potential energy of body moving from height 10 m to 5 m having
mass 3kg will be:
A. 294
B. 295
C. 145
D.
147
17-Frictional effect between layers of flowing fluid is known as:
A.
Viscosity
B. Friction
C. Gravity
D. Surface tension
18-Force required to slide one layer from another measures the:
A.
Viscosity
B. Friction
C. Gravity
D. None
19-According to equation of continuity product of area of pipe and speed of
fluid along pipe is:
A. 1
B. 0
C.
Constant
D. Different
20-If there is no frictional force between layers of fluid then it is known
as
A. Thick
B.
Non-viscous
C. Compressible
D. Incompressible
21-Cross sectional area of water hose having radius of 0.2 m is:
A. 1.1
B. 0.23
C.
0.125
D. 1.3
22-If density of fluid is not constant, it is said to be
A. Viscous
B. Incompressible
C.
Compressible
D. None
23-To assist movement in water, dolphins have:
A. Laminated bodies
B. Turbulent bodies
C. Fat bodies
D.
Streamlined bodies
24-Constant of equation of continuity is known as:
A.
Flow rate
B. Friction
C. Fluid flow
D. Surface tension
25-An object moving through liquid facing retarding force is named as
A. Viscosity
B. Friction
C.
Drag force
D. None
26-Torricelli’s theorem is one of application of the:
A. Equation of continuity
B.
Bernoulli’s equation
C. Light equation
D. Speed equation
27-When magnitude of drag force gets equal to weight of drop, net force
acting on a drop becomes:
A. 1
B.
0
C. Min
D. Max
28-At 30 degree water has viscosity of:
A.
0.801
B. 2
C. 1.4
D. 6.29
29-According to Bernoulli’s equation where speed is high pressure will be
A. High
B.
Low
C. Min
D. Max
30-With increase of speed in fluid drag force on an object will be:
A.
Increase
B. Decrease
C. Remain same
D. Gets doubled
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