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This mock test of Fluid Dynamics NAT Level - 1 for Physics helps you for every Physics entrance exam.
This contains 10 Multiple Choice Questions for Physics Fluid Dynamics NAT Level - 1 (mcq) to study with solutions a complete question bank.
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*Answer can only contain numeric values

QUESTION: 1

An open tank 10* m* long and 2

Solution:

The correct answer is: 20

*Answer can only contain numeric values

QUESTION: 2

An open water tanker moving on a horizontal straight road has a cubical block of cork floating over its surface. If the tanker has an acceleration of * a* as shown, the acceleration (in

Solution:

The correct answer is: 0

*Answer can only contain numeric values

QUESTION: 3

A fire hydrant delivers water of density ρ at a volume rate * L*. The water travels vertically upward through the hydrant and then does 90° turn to emerge horizontally at speed

Solution:

Force exerted in vertical direction and horizontal direction are

The correct answer is: 2

*Answer can only contain numeric values

QUESTION: 4

Water is moving with a speed of 5.18 **m/s**^{–1} through a pipe with a cross-sectional area of 4.20 **cm**^{–2}. The water gradually descends 9.66* m* as the pipe increase in area to 7.60

Solution:

The correct answer is: 2.86

*Answer can only contain numeric values

QUESTION: 5

An incompressible liquid flows through a horizontal tube as shown in the figure. Then the velocity * v* (in

Solution:

*Answer can only contain numeric values

QUESTION: 6

Assuming the xylem tissues through which water rises from root to the branches in a tree to be of uniform cross-section. Find the maximum radius (in mu * m*) of xylem tube in a 10

(Surface tension of water = 0.1

Solution:

The correct answer is: 1

*Answer can only contain numeric values

QUESTION: 7

A tank is filled with a liquid upto a height ** H**. A small hole is made at the bottom of this tank. Let

Solution:

Substituting the proper limits in Equation (1), derived in the theory, we have

The correct answer is: 0.414

*Answer can only contain numeric values

QUESTION: 8

A large open tank has two small holes in its vertical wall as shown in figure. One is a square hole of side * l* at a depth 4

Solution:

*Answer can only contain numeric values

QUESTION: 9

The velocity of the liquid coming out of a small hole of a large vessel containing two different liquids of densities 2ρ and ρ as shown in figure is Find the value of α.

Solution:

Pressure at (1) :

Applying Bernoulli’s theorem between points (1) and (2)

The correct answer is: 2

*Answer can only contain numeric values

QUESTION: 10

A horizontal pipe line carries in a streamline flow. At a point along the pipe where the cross-sectional area is 10 **cm**^{2}, the water velocity is 1**ms**^{–1} and the pressure is 2000 ** Pa**. What will be the pressure (in

Solution:

From continuity equation

Applying Bernoulli’s theorem at 1 and 2

The correct answer is: 500

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