3931. The quantity of a liquid flowing per second through a section of a pipe or a channel is called discharge and is measured in cumecs (m3/s).
TRUE
FALSE
✅ The correct answer is option A.
Mechanical Engineering
Prepare with the best Mechanical Engineering MCQs with answers and explanations for exams, interviews, and job tests. Our collection covers core topics such as engineering mechanics, thermodynamics, strength of materials, theory of machines, fluid mechanics, heat transfer, manufacturing processes, machine design, and power plant engineering. These Mechanical Engineering multiple-choice questions are designed for students, fresh graduates, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your technical knowledge and problem-solving ability with our updated and comprehensive Mechanical Engineering MCQs.
3932. The ratio of change in volume to the original volume is called
linear strain
lateral strain
volumetric strain
Poisson’s ratio
✅ The correct answer is option C.
3933. Follow-up prescribes the sequence of operations to be followed.
Correct
Incorrect
✅ The correct answer is option A.
3935. The ratio of the isentropic heat drop to the heat supplied, is called
reheat factor
stage efficiency
internal efficiency
Rankine efficiency
✅ The correct answer is option D.
3936. Two heavy rotating masses are connected by shafts of lengths l1, l2 and l3 and the corresponding diameters are d1, d2 and d3. This system is reduced to a torsionally equivalent system having uniform diameter d = d1 of the shaft. The equivalent length of the shaft is
l1 + l2 + l3
✅ The correct answer is option C.
3937. The equation of motion for a vibrating system with viscous damping is , if the roots of the equation are __________ then the system will be under damped.
equal
real
complex conjugate
✅ The correct answer is option C.
3938. The frictional torque transmitted in a flat pivot bearing, considering uniform pressure, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)
μ W R
μ W R
μ W R
μ W R
✅ The correct answer is option B.
3939. A compressor mostly used for supercharging of I.C. engines is
radial flow compressor
axial flow compressor
roots blower
reciprocating compress
✅ The correct answer is option A.
3940. A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?
The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction.
The upper and bottom rolls rotate in the same direction whereas the middle roll rotate in opposite direction.
The bottom and middle roll rotate in the same direction.
any one of the above
✅ The correct answer is option B.