GATE Mechanical Engineering Practice Quiz

Question 1

Air in a closed rigid tank is initially at $300\,\text{K}$ and $2\,\text{bar}$. Heat is added until the pressure becomes $3\,\text{bar}$. Assuming air to be an ideal gas with constant specific heats, the final temperature is

Accepted Answer

$450\,\text{K}$

Question 2

For steady, incompressible, inviscid flow along a streamline, Bernoulli's equation is applicable when which of the following conditions is satisfied?

Accepted Answer

There must be no shaft work and no frictional losses along the streamline

Question 3

In an orthogonal cutting operation, the rake angle is $10^\circ$, uncut chip thickness is $0.25\,\text{mm}$, and chip thickness is $0.50\,\text{mm}$. The shear plane angle is closest to

Accepted Answer

$28.3^\circ$

Question 4

A solid circular shaft of diameter $40\,\text{mm}$ transmits torque $T$. If the allowable shear stress is $80\,\text{MPa}$, the maximum permissible torque is closest to

Accepted Answer

$1.01\,\text{kN}\cdot\text{m}$

Question 5

A simply supported beam of span $L$ carries a central point load $W$. The maximum bending moment and maximum deflection respectively are

Accepted Answer

$\frac{WL}{4}$, $\frac{WL^3}{48EI}$

GATE Mechanical Engineering

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GATE Mechanical Engineering Practice Quiz

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