GATE Mechanical Engineering

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What GATE Exam is?

GATE is the acronym of the Graduate Aptitude Test in Engineering. The GATE Exam is conducted every year by one of the IITs in the month of February.

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Why GATE Exam?

If a Mechanical Graduate Engineer wants to get admission into the prestigious Indian Institute of Technologies, National Institute of Technologies (NITs), IIITs, and other CFTIs for the postgraduate programs the GATE qualification is mandatory. There are also many other institutes that consider the GATE score for admission. If you want to get recruited by the famous Public Sector Undertaking (PSUs) like NTPC, BHEL, ONGC, SAIL, GAIL, HPCL, BPCL, the GATE qualification is very much required.

Note: The GATE Scorecard remains valid for the next 3 years, once you qualify for the Exam.

Mechanical Engineering Quiz

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GATE Exam Quiz-01

Let's practice this mini quiz, comprising only 10 Questions from Theory of Machines, Heat Transfer, Manufacturing, and Fluid Mechanics.

1 / 10

The ratio of the thickness of the thermal boundary layer to the thickness of the hydrodynamic boundary layer is equal to (Prandtl number) n, where n is_____.

1

2/3

-1/3

-1

2 / 10

For ductile materials, the most appropriate failure theory is _____.

Shear strain energy theory

Maximum shear stress theory

Maximum principal stress theory

Maximum principal strain theory

3 / 10

The assumption made in Fourier's law is that the heat flow

A. Is in steady-state
B. Through a solid medium in one dimension

None of these

Both (A) and (B)

Only (B)

Only (A)

4 / 10

Which of the following processes would produce the best components?

extrusion

die casting

forging

hot rolling

5 / 10

Which surface will have the least emissivity?

Concrete

Plaster

Aluminium foil

Smooth glass

6 / 10

The process of heat transfer from a hot body to a cold body in a straight line, without affecting the intervening medium, is known as ______.

All of these

Radiation

Conduction

Convection

7 / 10

Heat is transferred from an electric bulb by ______.

Radiation

All of these

Conduction

Convection

8 / 10

A sprue hole is _____.

a casting defect

an opening in the mould for pouring molten metal

a blind hole in jigs

a hold made for riveting

9 / 10

Whirling speed of a shaft coincides with the natural frequency of the _____.

Longitudinal vibration

Torsional vibration

Coupled between torsional vibration

Transverse vibration

10 / 10

Two insulating materials of thermal conductivity K and 2K are available for lagging a pipe carrying a hot fluid. If the radial thickness of each material is the same _____.

None of these

It is immaterial in which sequence the insulating materials are used

Material with lower thermal conductivity should be used for the inner layer and one with higher thermal conductivity for the outer

Material with higher thermal conductivity should be used for the inner layer and one with layer and one with lower thermal conductivity for the outer

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The average score is 38%

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GATE Mechanical Engineering Paper

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