821. A machine part subjected to __________ is called a strut.
an axial tensile force
an axial compressive force
a tangential force
any one of these
✅ The correct answer is option B.
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.
822. The velocity of flue gases (V) through the chimney under a static draught of(H’) metres is given by
V = 2g H’
V = 2g/H’
V = H’/2g
V = 2gH’
✅ The correct answer is option A.
823. A simply supported beam with a gradually varying load from zero at B and w per unit length at A is shown in the below figure. The shear force at B is equal to
wl/6
wl/3
wl
2 wl/3
✅ The correct answer is option A.
824. Which of the following statement is correct about the network diagram?
The events are represented graphically by circles or nodes at the beginning and the end of activity by arrows.
The tail end of the arrow represents the start of an activity.
The head of the arrow represents the end of an activity.
all of the above
✅ The correct answer is option D.
825. The hydraulic efficiency of a reaction turbine, is the ratio of
power produced by the turbine to the energy actually supplied by the turbine
actual work available at the turbine to energy imparted to the wheel
workdone on the wheel to the energy (or head of water) actually supplied to the turbine
none of the above
✅ The correct answer is option C.
826. In a Hartnell governor, the compression of the spring is __________ the lift of the sleeve.
equal to
less than
greater than
✅ The correct answer is option A.
827. The property of a liquid which controls its rate of flow is called viscosity.
TRUE
FALSE
✅ The correct answer is option A.
828. For dynamic balancing of a shaft
the net dynamic force acting on the shaft is equal to zero
the net couple due to the dynamic forces acting on the shaft is equal to zero
both (a) and (b)
none of the above
✅ The correct answer is option C.
829. In drilling aluminium, a drill with
zero helix angle is used
low helix angle is used
high helix angle is used
any helix angle can be
✅ The correct answer is option C.
830. A flow whose streamline is represented by a straight line, is called __________ dimensional flow.
one
two
three
four
✅ The correct answer is option A.