GATE Mechanical Exam Practice paper - 3 Online Test

In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated

carbide tool, the cutting velocity is 90 m/min. The feed is 0.24 mm/rev and the

depth of cut is 2mm. The chip thickness obtained is 0.48 mm. If the orthogonal

rake angle is zero and the principle cutting edge angle is 90c, the shear angle in

degree is

Which one of the following is a solid state joining process ?

Which of the following engineering materials is the most suitable candidate for hot

chamber die casting ?

For an under damped harmonic oscillator, resonance

During inelastic collision of two particles, which one of the following is conserved ?

A ball bearing operating at a load F has 8000 hours of life. The life of the bearing,

in hours, when the load is doubled to 2F is

Consider steady laminar incompressible anti-symmetric fully developed viscous

flow through a straight circular pipe of constant cross-sectional area at a Reynolds

number of 5. The ratio of inertia force to viscous force on a fluid particle is

Consider an incompressible laminar boundary layer flow over a flat plate of length

L, aligned with the direction of an incoming uniform free stream. If F is the ratio

of the drag force on the front half of the plate to the drag force on the rear half,


Water has a critical specific volume of 0.003155m3/kg. A closed and rigid steel

tank of volume 0.025m3 contains a mixture of water and steam at 0.1MPa. The

mass of the mixture is 10 kg. The tank is now slowly heated. The liquid level inside

the tank

If a square matrix A is real and symmetric, then the eigen values


A Practice Paper for GATE Mechanical aspirants.
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Robert Howard

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