Q.1
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be
Q.2
Lami's theorem states that
Q.3
Moment of inertia of a circular section about its diameter (d) is
Q.4
The range of projectile (R) on an upward inclined plane is
Q.5
The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by
Q.6
A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.
Q.7
If a number of forces are acting at a point, their resultant is given by
Q.8
The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad/s2, is
Q.9
In a screw jack, the effort required to lift the load is given by (where W = Load lifted, α = Helix angle, and φ = Angle of friction.)
Q.10
Joule is the unit of
Q.11
When trying to turn a key into a lock, following is applied
Q.12
Kinetic friction is the
Q.13
Two non-collinear parallel equal forces acting in opposite direction
Q.14
In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will
Engineering Mechanics mcq question image
Q.15
The unit of work or energy in S.I. units is
Q.16
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is
Q.17
The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h)
Q.18
The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction.)
Q.19
Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)
Q.20
A force is completely defined when we specify
Q.21
The C.G. of a solid hemisphere lies on the central radius 3r
Q.22
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.
Q.23
The unit of moment of inertia of an area is
Q.24
The below figure shows the two equal forces at right angles acting at a point. The value of force ‘R’ acting along their bisector and in opposite direction is
Engineering Mechanics mcq question image
Q.25
The forces, which meet at one point, but their lines of action do not lie in a plane, are called
Q.26
The possible loading in various members of framed structures are
Q.27
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one
Q.28
The loss of kinetic energy during inelastic impact, is given by (where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.)
Q.29
The force induced in the string AB due to the load W, as shown in the below figure is
Engineering Mechanics mcq question image
Q.30
If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,
Q.31
The angle of inclination of the plane at which the body begins to move down the plane, is called
Q.32
If n = number of members and y = number of joints, then for a perfect frame, n = ?
Q.33
The velocity ratio for the third system of pulleys is
Q.34
Dynamic friction as compared to static friction is
Q.35
In ideal machines
Q.36
In determining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than
Q.37
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span
Q.38
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
Q.39
Which of the following do not have identical dimensions?
Q.40
The centre of gravity of a right circular solid cone is at a distance of _________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)
Q.41
The time of flight (t) of a projectile on a horizontal plane is given by
Q.42
The range of a projectile is maximum, when the angle of projection is
Q.43
In actual machines
Q.44
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either
Q.45
A block of mass m₁, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m₂, which moves vertically downwards as shown in the below figure. The tension in the string is
Engineering Mechanics mcq question image
Q.46
Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is
Engineering Mechanics mcq question image
Q.47
If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be
Engineering Mechanics mcq question image
Q.48
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is
Q.49
The minimum force required to slide a body of weight 'W' on a rough horizontal plane is
Q.50
The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)
0 h : 0 m : 1 s