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 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

Convection

Conduction

2 / 10

Which of the following processes would produce the best components?

hot rolling

forging

extrusion

die casting

3 / 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

4 / 10

Heat is transferred from an electric bulb by ______.

Conduction

Convection

Radiation

All of these

5 / 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

Only (B)

Both (A) and (B)

Only (A)

None of these

6 / 10

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

Torsional vibration

Longitudinal vibration

Coupled between torsional vibration

Transverse vibration

7 / 10

A sprue hole is _____.

a hold made for riveting

an opening in the mould for pouring molten metal

a casting defect

a blind hole in jigs

8 / 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

9 / 10

Which surface will have the least emissivity?

Aluminium foil

Smooth glass

Plaster

Concrete

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

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

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

It is immaterial in which sequence the insulating materials are used

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GATE Mechanical Engineering Paper

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