Test: Kinematics of Flow & Ideal Flow - 1


10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering | Test: Kinematics of Flow & Ideal Flow - 1


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QUESTION: 1

 For the velocity function,

the equation of the streamline passing through (1,1) is

Solution:

QUESTION: 2

A steady, incompressible, 2-D velocity field is given by
u = x + y + 2
v = x - y - 3
The coordinate of stagnation point (if it exists) is 

Solution:

QUESTION: 3

 The velocity along the centreline of a nozzle of length L is given by

where,
V - velocity in m/s,
t = time in seconds from commencement of flow,
x = distance from inlet to the nozzle

The total acceleration when t = 3s, x = 0.5 m and L - 1 m is

Solution:

QUESTION: 4

A pathline represents

Solution:
QUESTION: 5

There is no geometrical distinction between the streamline, pathline and streakline in case of

Solution:
QUESTION: 6

Which of the following statement is wrong?

Solution:

Streamline spacing varies inversely as the velocity; converging of streamline in any particular direction shows accelerated flow in that direction.

QUESTION: 7

When fluid flows in a curved path and requires no external impressed constant force, the fluid motion is known as

Solution:
QUESTION: 8

Match List-I (Example of flow) with List-Il (Type of flow) the following:

Solution:
QUESTION: 9

When a cylindrical vessel containing a liquid is revolved at constant angular velocity about its vertical axis, the pressure

Solution:

QUESTION: 10

An open cylindrical tank is 15 cm (radius) x 150 cm (height) and is filled with water to a depth of 80 cm. What is the maximum angular velocity with which it can be rotated so that center of the bottom of the tank is just exposed?

Solution:

When the point at the center of the base is just exposed, the depth of fluid at center becomes zero. Therefore, the depth of parabola equals the height of tank, y = 150 cm

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