Q.1
The velocity of a particle moving with simple harmonic motion is _________ at the mean position.
Q.2
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)
Q.3
In a framed structure, as shown in the below figure, the force in the member AB is __________ the force in member AC.
Engineering Mechanics mcq question image
Q.4
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is
Q.5
Forces are called concurrent when their lines of action meet in
Q.6
The forces, which meet at one point and their lines of action also lie on the same plane, are known as
Q.7
If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by
Q.8
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
Q.9
If a rigid body is in equilibrium under the action of three forces, then
Q.10
If a number of forces act simultaneously on a particle, it is possible
Q.11
A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of
Q.12
The necessary condition for forces to be in equilibrium is that these should be
Q.13
The centre of percussion of the homogeneous rod of length ‘L’ suspended at the top will be
Q.14
The units of moment of inertia of mass are
Q.15
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.
Q.16
The motion of a particle round a fixed axis is
Q.17
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
Q.18
The maximum acceleration of a particle moving with simple harmonic motion is
Q.19
A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
Q.20
In a framed structure, as shown in the below figure, the force in the member BC is
Engineering Mechanics mcq question image
Q.21
When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.
Q.22
Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then
Q.23
The impact between two lead spheres is approximately equal to an __________ impact.
Q.24
The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is
Q.25
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is
Q.26
According to the law of moments, if a number of coplanar forces acting on a particle are in equilibrium, then
Q.27
The matter contained in a body, is called
Q.28
The maximum efficiency of a screw jack is
Q.29
Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
Q.30
A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is
Q.31
Moment of inertia is the
Q.32
The total motion possessed by a body, is called
Q.33
In order to double the period of simple pendulum, the length of the string should be
Q.34
Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is ________ than that about X-X axis.
Engineering Mechanics mcq question image
Q.35
In ideal machines, mechanical advantage is __________ velocity ratio.
Q.36
The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is
Q.37
The maximum efficiency of a lifting machine is
Q.38
The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplanar concurrent forces.
Q.39
The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as
Q.40
The unit of angular acceleration is
Q.41
The wheels of a moving car possess
Q.42
Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is
Q.43
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
Q.44
The unit of angular velocity is
Q.45
The unit of force in S.I. units is
Q.46
The static friction
Q.47
The unit of work in S.I. units is
Q.48
The weight of a body is due to
Q.49
If a number of coplanar forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.
Q.50
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)
0 h : 0 m : 1 s