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HAL ME Mock Test - 5

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Question 1

In each of the following number series a wrong number is given. Find out that number :

6, 4, 5.5, 10.25, 22.5, 60.5

Question 2

In which state has the petro-chemical industry developed most in India ?

Question 3

Which one of the following phrasal verbs may be used in the blank space in the sentence, “She will _________ (to do someone else’s work temporarily) for him while he's at the conference.”?

Question 4

Four different position of dice are as shown below. What numbers is opposite to face 3 ?

Question 5

Who is the author of the novel 'Tropic of Cancer’?

Question 6

The energy of an isolated system always ________.

Question 7

The efficiency of IC engine is normally of the order of

Question 8

For perfectly elastic bodies, the value of coefficient of restitution is

Question 9

Two bars each of length L and of the same material are subjected to the same axial tensile force P. The first bar has a uniform diameter 2d. The second bar has a diameter d for length l and a diameter 2d for the remaining length. The ratio of the strain energies of the two bars U1/U2 is _________.

Question 10

Scab is a defect of ____.

Question 11

For a certain 2-D incompressible flow the velocity is given by . Find the equation of streamline passing through the point (2,2)

Question 12

Trepanning is used for______.

Question 13

A grinding wheel of 150 mm diameter is rotating at 3000 rpm. The grinding speed is _____.

Question 14

The locus of the temperature distribution curve in a glass slab with uniform heat generation throughout is______.

Question 15

The efficiency of a simple gas turbine can be improved by using a regenerator, because the

Question 16

The number of radiation shield screens in case of radiation heat transfer to reduce the radiation heat exchange by 80% is __________.

Question 17

The acceleration of the piston at the position when the crank makes an angle of 90o  with the line of slider is equal to

(Consider the length of connecting rod as 250 mm and crank radius as 50 mm)

where R is crank radius and  is angular velocity of crank

Question 18

Of the radiant energy 350W/m2 incident upon a surface 250W/m2 is absorbed, 60W/m2 is reflected and the remainder is transmitted through the surface. Workout the value for reflectivity for the surface material

Question 19

Coefficient of friction in rolling operation is given as µ. What is its relation with the draft?

Question 20

The instantaneous center of rotation of a rigid thin disc rolling on a plane rigid surface is located at
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