List of top Mechanical Engineering Questions

Which of the following is NOT a basic series of Preferred numbers used in standardization?
The purpose of chaplets in moulding is:
The capability of moulding sand to withstand higher temperatures of the molten metal, is called:
When the molten metal fails to reach all the sections of the mould, such that a certain part of it remains unfilled, resulting incomplete casting, the defect is called:
The pattern used for preparing moulds of large and axis-symmetrical castings (e.g., Bells, large gears, wheels etc.) is known as:
In cold working of metals:
In forging operation, tool (used in pair) having rounded working edges, used for necking down the cross-section of the work-piece, is known as:
Which of the following method is NOT a sheet metal common method of layout a Pattern or development of surface of the object:
In fitting, the file having rectangular cross section, tapered towards the tip both in width and thickness, double cut teeth on faces and single cut teeth on edges, is called:
The hammer used in carpentry (Wood working) is:
In which one of the following materials the heat energy propagation is minimum due to conduction heat transfer?
An impulse turbine produces 50 kW of power when the blade mean speed is 400 m/s. What is the rate of change of momentum tangential to the rotor?
What are the absolute maximum value and the absolute minimum value of a function \( f(x) = \sin x + \cos x \) in the interval \( [0, \pi] \)?
If \( y = e^{(x+e)^{(x+e)^{(x+\cdots)}}} \), what is the value of \( \frac{d}{dx}(y) \)?
The Nusselt number is related to the Reynolds number in laminar and turbulent flows respectively as:
The value of the integral \( \int_C \frac{3\sigma^2 + x}{z^2 - 1} \, dz \), where \( C \) is the circle \( |z - 1| = 1 \), is
The equation of free vibration of a system is \( X + 36\pi^2 X = 0 \). Its natural frequency is:
Match List-I with List-II
Choose the correct answer from the options given below:
A body starting with initial velocity zero, moves in a straight line as per the law \( s = 5t^3 - 3t^2 - 5 \) (where \( s \) is distance in meters and \( t \) is time in seconds). The acceleration of the particle after 0.5 seconds will be:
Match List-I with List-II
Choose the correct answer from the options given below:
Which of the following describes the function of a sensor?
Match List-I with List-II
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A Newtonian fluid is defined as the fluid which
Bernoulli's theorem deals with the law of conservation of
The thickness of a laminar boundary layer at a distance \( x \) from the leading edge over a flat plate varies as