The Following Section consists of Multiple Choice Questions on Applied Mechanics.
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Applied Mechanics MCQ
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Question 1 of 20
1. Question
1 pointsThe centre of gravity of a triangle is at the point where three
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Question 2 of 20
2. Question
1 pointsThe forces which meet at one point and have their lines of action in different planes are called
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Question 3 of 20
3. Question
1 pointsAt a given instant ship A is travelling at 6 km/h due east and ship B is travelling at 8 km/h due north. The velocity of B relative to A is
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Question 4 of 20
4. Question
1 pointsThe locus of the instantaneous centre of a moving rigid body, is
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Question 5 of 20
5. Question
1 pointsA projectile is thrown at an angle a to the horizontal with α velocity v. It will have the maximum centripetal acceleration
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Question 6 of 20
6. Question
1 pointsIf a body moves in such a way that its velocity increases by equal amount in equal intervals of time, it is said to be moving with
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Question 7 of 20
7. Question
1 pointsIf the gravitational accelerational at any place is doubled, the weight of a body, will
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Question 8 of 20
8. Question
1 pointsA 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
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Question 9 of 20
9. Question
1 pointsThe Law of Polygon of Forces states that
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Question 10 of 20
10. Question
1 pointsWhich one of the following statements is true ?
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Question 11 of 20
11. Question
1 pointsEngineer’s units of force, is
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Question 12 of 20
12. Question
1 pointsJoule is the unit of
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Question 13 of 20
13. Question
1 pointsThe maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is
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Question 14 of 20
14. Question
1 pointsThe angle which an inclined surface makes with the horiontal when a body placed on it is on the point of moving down, is called
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Question 15 of 20
15. Question
1 pointsWork may be defined as
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Question 16 of 20
16. Question
1 pointsA bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be
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Question 17 of 20
17. Question
1 pointsThe tension in a cable supporting a lift
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Question 18 of 20
18. Question
1 pointsA satellite moves in its orbit around the earth due to
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Question 19 of 20
19. Question
1 pointsIf three rigid rods are hinged together to form a triangle and are given rotary as well as translatory motion, the number of instantaneous centres of the triangle, will be
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Question 20 of 20
20. Question
1 pointsThe mechanical advantage of an ideal machine is 100. For moving the local through 2 m, the effort moves through
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Applied Mechanics MCQ 2
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Question 1 of 20
1. Question
1 pointsWhen a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as
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Question 2 of 20
2. Question
1 pointsIf the radius of the earth is 600 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is
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Question 3 of 20
3. Question
1 pointsThe total time of collision and restitution of two bodies, is called
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Question 4 of 20
4. Question
1 pointsThe length of a Second’s pendulum, is
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Question 5 of 20
5. Question
1 pointsA 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 efficiency of the lifting machine is
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Question 6 of 20
6. Question
1 pointsA string of length 90 cm is fastened to two points A and B at the same level 60 cm apart. A ring weighing 120 g is slided on the string. A horizontal force P is applied to the ring such that it is in equilibrium vertically below B. The value of P is :
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Question 7 of 20
7. Question
1 pointsTwo forces act an angle of 120°. If the greater force is 50 kg and their resultant is perpendicular to the smaller force, the smaller force is
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Question 8 of 20
8. Question
1 pointsA uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is
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Question 9 of 20
9. Question
1 pointsIf a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is
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Question 10 of 20
10. Question
1 pointsThe following factor affects the orbit of a satellite up to an altitude of 720 km from the earth’s surface
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Question 11 of 20
11. Question
1 pointsNewton’s law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation
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Question 12 of 20
12. Question
1 pointsTwo forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of
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Question 13 of 20
13. Question
1 pointsA projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is
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Question 14 of 20
14. Question
1 pointsA body is said to move with Simple Harmonic Motion if its acceleration, is
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Question 15 of 20
15. Question
1 pointsOne end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The reaction between the sphere and the wall of the arrangement made is
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Question 16 of 20
16. Question
1 pointsEffect of a force on a body depends upon its
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Question 17 of 20
17. Question
1 pointsThe resultant of the forces acting on a body will be zero if the body
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Question 18 of 20
18. Question
1 pointsA ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be
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Question 19 of 20
19. Question
1 pointsA Seconds pendulum executes
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Question 20 of 20
20. Question
1 pointsA Second’s pendulum gains 2 minutes a day. To make it to keep correct time its length
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Applied Mechanics MCQ 3
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Question 1 of 20
1. Question
1 pointsThe following is not a law of static friction :
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Question 2 of 20
2. Question
1 pointsThe velocity of a moving body, is
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Question 3 of 20
3. Question
1 pointsA spring scale in a stationary lift shows a reading of 60 kg for a man standing on it. If the lift starts descending at an acceleration of g/5, the scale reading would be
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Question 4 of 20
4. Question
1 pointsA 50 kg boy climbs up a 8 m rope in gymnasiam in 10 sec. The average power developed by the boy is approximately
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Question 5 of 20
5. Question
1 pointsPick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,
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Question 6 of 20
6. Question
1 pointsIf two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along
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Question 7 of 20
7. Question
1 pointsFor 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
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Question 8 of 20
8. Question
1 pointsPower can be expressed as
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Question 9 of 20
9. Question
1 pointsIf the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called
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Question 10 of 20
10. Question
1 pointsTo avoid bending action at the base of a pier,
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Question 11 of 20
11. Question
1 pointsFor a body moving with simple harmonic motion, the number of cycles per second, is known as its
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Question 12 of 20
12. Question
1 pointsIf the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is
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Question 13 of 20
13. Question
1 pointsThe shape of a suspended cable under its own weight, is
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Question 14 of 20
14. Question
1 pointsTime required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is
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Question 15 of 20
15. Question
1 pointsBall A of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after impact would be
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Question 16 of 20
16. Question
1 pointsOne end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The tension in the string is
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Question 17 of 20
17. Question
1 pointsThe inherent property of a body which offers reluctance to change its state of rest or uniform motion, is
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Question 18 of 20
18. Question
1 pointsA 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
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Question 19 of 20
19. Question
1 pointsThe angle of friction is :
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Question 20 of 20
20. Question
1 pointsThree forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and
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Applied Mechanics MCQ 4
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Question 1 of 20
1. Question
1 pointsFor perfectly elastic bodies, the value of coefficient of restitution is
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Question 2 of 20
2. Question
1 pointsThe maximum frictional force which comes into play, when a body just begins to slide over the surface of a an other body, is known
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Question 3 of 20
3. Question
1 pointsIf two forces of 3 kg and 4 kg act at right angles to each other, their resultant force will be equal to
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Question 4 of 20
4. Question
1 pointsTwo shots fired simultaneously from the top and bottom of a vertical tower with elevations of 30° and 45° respectively strike a target simultaneously. If horizontal distance of the target from the tower is 1000 m, the height of the tower is
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Question 5 of 20
5. Question
1 pointsA 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,
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Question 6 of 20
6. Question
1 pointsThe ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is
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Question 7 of 20
7. Question
1 pointsThe apparent weight of a man in a moving lift is less than his real weight when it is going down with
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Question 8 of 20
8. Question
1 pointsP is the force acting on a body whose mass is m and acceleration is f. The equation P – mf = 0, is known as
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Question 9 of 20
9. Question
1 pointsNewtons’s Law of Motion is :
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Question 10 of 20
10. Question
1 pointsTwo particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is
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Question 11 of 20
11. Question
1 pointsA trolley wire weighs 1 kg per metre length. The ends of the wire are attached to two poles 20 m apart. If the horizontal tension is 1000 kg, the central dip of the cable is
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Question 12 of 20
12. Question
1 pointsPrinciple of Transmissibility of Forces states that, when a force acts upon a body, its effect is
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Question 13 of 20
13. Question
1 pointsA ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is
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Question 14 of 20
14. Question
1 pointsIf the linear velocity of a point on the rim of a wheel of 10 m diameter, is 50 m/sec, its angular velocity will be
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Question 15 of 20
15. Question
1 pointsA marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is
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Question 16 of 20
16. Question
1 pointsA number of forces acting simultaneously on a particle of a body
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Question 17 of 20
17. Question
1 pointsThe force acting on a point on the surface of a rigid body may be considered to act
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Question 18 of 20
18. Question
1 pointsA satellite is said to move in a synchronous orbit if it moves at an altitude of 36, 000 km with a maximum velocity of about
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Question 19 of 20
19. Question
1 pointsPick up the incorrect statement from the following :
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Question 20 of 20
20. Question
1 pointsA 49 kg lady stands on a spring scale in an elevator. During the first 5 sec, starting from rest, the scale reads 69 kg. The velocity of the elevator will be
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