Q.1
According to Lami’s theorem
Q.2
According to principle of moments
Q.3
The resolved part of the resultant of two forces inclined at an angle 'θ' in a given direction is equal to
Q.4
One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring.)
Q.5
The moment of inertia of a sphere of mass 'm' and radius 'r', about an axis tangential to it, is
Q.6
The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is
Q.7
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is
Q.8
A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act
Q.9
A ladder is resting on a smooth ground and leaning against a rough vertical wall. The force of friction will act
Q.10
The moment of inertia of a rectangular section 3 cm wide and 4 cm deep about X-X axis is
Q.11
The product of either force of couple with the arm of the couple is called
Q.12
If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is _________ the momentum of body having mass m2.
Q.13
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as
Q.14
Which of the following is the example of lever of first order?
Q.15
Which of the following are vector quantities?
Q.16
Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to
Q.17
The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is
Q.18
A framed structure, as shown in the below figure, is a
Engineering Mechanics mcq question image
Q.19
Which of the following are vector quantities?
Q.20
The C.G. of a right circular solid cone of height h lies at the following distance from the base
Q.21
The maximum frictional force which comes into play when a body just begins to slide over another surface is called
Q.22
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
Q.23
When a body of mass 'm' attains a velocity 'v' from rest in time 't', then the kinetic energy of translation is
Q.24
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is
Q.25
According to principle of transmissibility of forces, the effect of a force upon a body is
Q.26
When the spring of a watch is wound, it will possess
Q.27
The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)
Q.28
The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.)
Q.29
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
Q.30
A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure. The center of gravity of the section will lie
Engineering Mechanics mcq question image
Q.31
The maximum height of a projectile on a horizontal plane, is
Q.32
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.
Q.33
The force induced in the string BC due to the load 'W' as shown in the below figure is
Engineering Mechanics mcq question image
Q.34
The angle between two forces when the resultant is maximum and minimum respectively are
Q.35
The mechanical advantage of a lifting machine is the ratio of
Q.36
The efficiency of a lifting machine is the ratio of
Q.37
Center of gravity of a thin hollow cone lies on the axis at a height of
Q.38
The time of flight of a projectile on downward inclined plane depends upon
Q.39
In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is
Q.40
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.
Q.41
Which of the following is not the unit of energy?
Q.42
Which one of the following statements is not correct?
Q.43
The forces, whose lines of action are parallel to each other and act in the same directions, are known as
Q.44
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is
Q.45
According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)
Q.46
The friction experienced by a body, when at rest, is known as
Q.47
The energy possessed by a body, for doing work by virtue of its position, is called
Q.48
The coefficient of friction depends upon
Q.49
For any system of coplanar forces, the condition of equilibrium is that the
Q.50
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be
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