Q.1
A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at 3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is
Q.2
Total no of instantaneous centers of a machine having ‘n’ links, is
Q.3
The acceleration of a train starting from rest at any instant is 1/6(V + 1) m/sec² where ‘V’ is the velocity of the train in m/sec. The train will attain a velocity of 36 km/hour after travelling a distance of
Q.4
A particle moves in a straight line and its position is defined by the equation x = 6 t² - t3 where t is expressed in seconds and ‘x’ in meters. The maximum velocity during the motion is
Q.5
The member which does not carry zero force in the structure shown in below figure, is
Applied Mechanics and Graphic Statics mcq question image
Q.6
A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is,
Q.7
The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is
Q.8
A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is
Q.9
For a self-locking machine, the efficiency should be
Q.10
A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The mechanical advantage of the lifting machine is
Q.11
A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The velocity ratio of the lifting machine is
Q.12
The centre of gravity of the trapezium as shown in below figure from the side is at a distance of
Applied Mechanics and Graphic Statics mcq question image
Q.13
A disc of mass 4 kg, radius 0.5 m and moment of inertia 3 kg.m² rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is
Q.14
A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be
Q.15
The angle which an inclined surface makes with the horizontal when a body placed on it is on the point of moving down, is called
Q.16
The resultant of two forces acting at right angles is √34 kg and acting at 60° is 70 kg. The forces are
Q.17
A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2A, the energy becomes
Q.18
A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be
Q.19
The moment of inertia of a circular lamina of diameter ‘d’, about an axis perpendicular to the plane of the lamina and passing through its centre, is
Q.20
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is
Q.21
If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is
Q.22
A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is
Applied Mechanics and Graphic Statics mcq question image
Q.23
Instantaneous center is at infinity when the angular velocity is
Q.24
A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is
Q.25
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is
Q.26
If two equal forces of magnitude ‘P’ act at an angle ‘θ’, their resultant, will be
Q.27
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is
Q.28
‘P’ is the force acting on a body whose mass is ‘m’ and acceleration is ‘f’. The equation P - mf= 0, is known as
Q.29
For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is
Q.30
A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration
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