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DMRC 2018 ME Technical Mini Mock Quiz

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Question 1

Thermal diffusivity of a substance is

Question 2

In order to achieve maximum heat dissipation, the fin should be designed in such a way that

Question 3

A fluid with kinematic viscosity 0.4 × 10^-4 m²/sec flows through a 80 mm diameter pipe. The maximum velocity for laminar flow will be :

Question 4

When Venturimeter is inclined, then for a given flow it will show

Question 5

If w is the specific weight of the liquid and h the depth of any point from the surface, then the pressure intensity at that point will be

Question 6

Loss of energy per unit weight due to friction in case of flow through a pipe at length L and diameter D is expressed as
where p is density of the flowing fluid.

Question 7

Power transmitted through a pipe is maximum when the loss of head due to friction is

Question 8

If the particles of a fluid attain such velocities that velocities vary from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be ________.

Question 9

A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other is called

Question 10

A type of flow in which the fluid particles while moving in the direction of flow rotate about their mass centre, is called ________.

Question 11

The specific speed of a pump is defined as the speed of a unit of such a size that

Question 12

The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream

Question 13

Which one of the following assumptions of Bernoulli’s theorem is not correct?

Question 14

What is the unit of dynamic viscosity of a fluid termed ‘poise’ equivalent to?

Question 15

The relation

for an irrotational flow is known as which one of the following?

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ESE & GATE ME General

Jun 28ESE & GATE ME