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

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

Maximum principal strain theory

Shear strain energy theory

Maximum shear stress theory

Maximum principal stress theory

2 / 10

Which of the following processes would produce the best components?

hot rolling

extrusion

forging

die casting

3 / 10

A sprue hole is _____.

a hold made for riveting

a casting defect

an opening in the mould for pouring molten metal

a blind hole in jigs

4 / 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 ______.

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 (A)

Both (A) and (B)

None of these

Only (B)

6 / 10

Which surface will have the least emissivity?

Aluminium foil

Smooth glass

Concrete

Plaster

7 / 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 _____.

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

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

8 / 10

Heat is transferred from an electric bulb by ______.

Radiation

All of these

Convection

Conduction

9 / 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

1

2/3

-1/3

10 / 10

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

Torsional vibration

Transverse vibration

Longitudinal vibration

Coupled between torsional vibration

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GATE Mechanical Engineering Paper

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