15 - Mechanics

Quiz by Technos Technical Coaching

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50 questions
• Q1
Force whose lijnes of action meet in one point are called
Non coplanaer force
Concurrent forces
Coplanar forces
Non concurrent forces
40s
• Q2
The maximum frictional force which comes in to play when a body just begin to slide over the surface of another body is known as
Dynamic friction
Limiting friction
Kinetic friction
Rolling friction
40s
• Q3
Every material obey hook's law within
Plastic limit
Elastic limit
Limit of proportionality
None of these
40s
• Q4
The energy stored in a material within elastic limit when it is under strain is called
Shock resistence
Resilience
Elasticity
Impact
40s
• Q5
Unit og work in SI unit
Newton
Kgf.m
Newton meter
KiloNewton
40s
• Q6
The centre of gravity of a soild cone is at a distance …..from its base measured along the axis where h is the height
h/6
h/3
h/4
h/2
40s
• Q7
An example of Scalar quantity
Force
Mass
Velocity
momentum
40s
• Q8
Mechanical advantage to velocity ratio
Input
Output
Work done
Efficency
40s
• Q9
The deformation per unit length is called
Tensile stress
Shear stress
Strain
Compressive stress
40s
• Q10
The unit of angular velocity
Min
M/min
40s
• Q11
The branch of engineering mechanics which deals with the force and their effects while acting upon the bodies at rest
Static and dynamics
Dynamics
None of these
Statics
40s
• Q12
The ratio of linimitng friction to normal reaction is
Angle of friction
Cone of friction
Coefficent of friction
Angle of depression
40s
• Q13
Dyne is the unit of force in
CGS system
FPS system
None of these
MKS system
40s
• Q14
When a body is in motion the friction experienced is
None of these
Static friction
Dynamic friction
Limiting friction
40s
• Q15
The branch of dynamics which deals with the bodies in motion due to the application of force
Kinetics
None of these
Both of these
Kinematics
40s
• Q16
A person runs over ground. The nature of friction between his shoes and the ground is
None of these
Statics
Rolling
Kinetic
40s
• Q17
lami's theorem is applicable only for
Coplanar force
None of these
Non concurrent force
Coplanar and concurrent force
40s
• Q18
Joule is the unit of
Force
Work
Acceleration
Power
40s
• Q19
Weight of a substance is
Area x Density
Mass x Density
All of these
Volume x Density
40s
• Q20
The ratio of the weight of any given volume of a substance to the weight of an equal volume of pure water is termed as
Density
Specific gravity
Bulk density
Relative density
40s

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