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 Technonologies (NITs), IIITs and other CFTIs for the postgraduate programmes 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 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

-1/3

2 / 10

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

Longitudinal vibration

Torsional vibration

Transverse vibration

Coupled between torsional vibration

3 / 10

Which surface will have the least emissivity?

Smooth glass

Concrete

Aluminium foil

Plaster

4 / 10

Which of the following processes would produce the best components?

die casting

extrusion

hot rolling

forging

5 / 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

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

None of these

6 / 10

Heat is transferred from an electric bulb by ______.

All of these

Convection

Conduction

Radiation

7 / 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

Only (A)

Both (A) and (B)

Only (B)

8 / 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

Convection

Conduction

Radiation

9 / 10

A sprue hole is _____.

a hold made for riveting

a blind hole in jigs

a casting defect

an opening in the mould for pouring molten metal

10 / 10

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

Shear strain energy theory

Maximum principal stress theory

Maximum shear stress theory

Maximum principal strain theory

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GATE Mechanical Engineering Paper

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