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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

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Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

All Topics  1919

Select the correct statement?
A Local atmospheric pressure depends upon elevation of locality only
B Standard atmospheric pressure is the mean local atmospheric pressure a* sea level
C Local atmospheric pressure is always below standard atmospheric pressure
D A barometer reads the difference be-tween local and standard atmospheric pressure
Correct Answer: Standard atmospheric pressure is the mean local atmospheric pressure a* sea level
Fluid is a substance that___________________?
A cannot be subjected to shear forces
B always expands until it fills any container
C has the same shear stress.at a point regardless of its motion
D cannot remain at rest under action of any shear force
Correct Answer: cannot remain at rest under action of any shear force
Practical fluids___________________?
A are viscous
B possess surface tension
C are compressible
D possess all the above properties
Correct Answer: possess all the above properties
If no resistance is encountered by displacement, such a substance is known as ___________________?
A fluid
B water
C gas
D perfect solid
Correct Answer: fluid
Density of water is maximum at__________________?
A 0°C
B 0°K
C 4°C
D 100°C
Correct Answer: 4°C
Property of a fluid by which its own molecules are attracted is called___________________?
A adhesion
B cohesion
C viscosity
D compressibility
Correct Answer: cohesion
The property of a fluid which enables it to resist tensile stress is known as___________________?
A compressibility
B surface tension
C cohesion
D adhesion
Correct Answer: cohesion
The specific weight of water is 1000 kg/m”_________________?
A at normal pressure of 760 mm
B at 4°C temperature
C at mean sea level
D all the above
Correct Answer: all the above
When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?
A quasi static
B steady state
C laminar
D uniform
Correct Answer: uniform
An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is _________________?
A 10m/sec2
B 9.81 m/sec2
C 10.2/m sec
D 9.75 m/sec2
Correct Answer: 10m/sec2
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