List of top Mechanical Engineering Questions asked in CUET (PG)

After expansion from a gas turbine, the hot exhaust gases are used to heat the compressed air from a compressor with the help of a cross-flow compact heat exchanger of 0.8 effectiveness. What is the number of transfer units of the heat exchanger?

According to maximum shear stress failure theory, yielding in material occurs when:

A population grows at the rate of 8% per year. How long does it take for the population to double?

Match List-I with List-II

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The degrees of freedom of a SCARA robot are:

If a helical spring is halved in length, its spring stiffness remains:

The power required for turning a mild steel rod is found to be 0.1 kW/cm³/min. The maximum power available at the machine spindle is 4 kW. Assuming a cutting speed of 38 m/min and feed rate of 0.32 mm/rev, the maximum metal removal rate and depth of cut are respectively:

The translatory joint in a robot is known as:

Name of the device that selects between several analog or digital input signals and forwards the selected input to a single output line:

An aeroplane is flying at a height of 15 km, where the temperature is -50°C. Assuming \( k = 1.4 \) and \( R = 287 \, \text{J/K . kg} \), the approximate speed of the plane corresponding to \( M = 2.0 \) will be?

The instantaneous centre of a sliding body moving on a stationary curved surface lies at

What is the order of basic transformation of frame {i-1} to frame {i}:
(A). Translation along \(z_{i-1}\) axis by distance \(d_i\)
(B). Rotation by an angle \(\alpha_i\) about \(x_i\)-axis 
(C). Translation along \(x_i\)-axis by distance \(a_i\) 
(D). Rotation by an angle \(\theta_i\) about \(z_{i-1}\)-axis
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What is the function of Joints in a Robot Manipulator

The link parameters are

One single robot for continuous arc welding is unable to resolve the following issue

The human eye perception is limited to approximately

Given below are the two statements:
Statement (I): The scale factor in homogeneous transformation matrix can be any real value.
Statement (II): For robotics study, the scale factor in homogeneous transformation matrix is one.
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Given below are the two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): The end-effector does not contribute to manipulability.
Reason (R): The end-effector is external to the manipulator.
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What is the minimum number of degree of freedom for assembling round peg in round hole

Some of the examples of non-contact sensors includes _______ .
(A) Proximity sensors
(B) Temperature sensors
(C) Torque sensors
(D) Acoustic sensors
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The sequence for flow of signal in working principle of microsensors includes:
(A) Input signal
(B) Transducer element
(C) Sensor element
(D) Output signal
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In an electrical actuation system, solid-state switches include:
(A) Bipolar transistors
(B) Thyristors and triacs
(C) Relays
(D) Diodes
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Which of the following pressure control valves is used to sense the hydraulic pressure of an external line and give a signal when it reaches some preset value