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There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

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In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

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70 – 100 A

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Created on February 08, 2024 By

Ace/Undergragra

MEE 203

1 / 40

1. Lami's theroem states that

A. three forces acting at a point are always in equilibrium

B. three coplaner forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two

C. three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two

D. if three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium

2 / 40

2. The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

A. 137.5 cm4

B. 337.5 cm4

C. 437.5 cm4

D. 237.5 cm4

3 / 40

3. The units of moment of inertia of an area, are

A. kg/m2

B. m4

C. kg-m2.

D. kg/m

4 / 40

4. If a spherical body is symmetrical about its perpendicular axes, the moment of inertia of the body about an axis passing through its centre of gravity as given by Routh's rule is obtained by dividing the product of the mass and the sum of the squares of two semi-axes by n where n is

A. 5

B. 3

C. 4

D. 2

5 / 40

5. A retarding force on a body does not.

A. introduce the motion of the body

B. change the motion of the body

C. retard the motion of the body

D. none of these.

6 / 40

6. The resultant of two forces acting at right angles is A/34 kg and acting at 60? is 70 kg. The forces are

A. 3 kg and 5 kg

B. 1 kg and 4 kg

C. 3 kg and 1 kg

D. 2 kg and 3 kg

7 / 40

7. The angle of friction is :

A. The ratio of the friction and the normal reaction

B. The force of friction at which the body is just about to move.

C. The angle between the normal reaction and the resultant of normal raction and limiting friction

D. The force of friction when the body is in motion

8 / 40

8. The Centre of gravity of a 10 x 15 x 5 cm T section from its bottom, is

A. 7.85 cm

B. 8.75 cm

C. 7.50 cm

D. 5.0 cm

9 / 40

9. A point subjected to a number of forces will be in equilibrium, if

A. algebraic sum of the moments of the forces about the point is zero

B. two resolved parts in any two directions at right angles are equal

C. sum of resolved parts in any two directions at right angles, are both zero

D. algebraic sum of the forces is zero

10 / 40

10. The C.G. of a right circular cone lies on its axis of symmetry at a height of
A.
B.
C.
D.

A. h/2

B. h/3

C. hI5

D. hI4

11 / 40

11. The centre of gravity of a plane lamina will not be at its geometrical centre if it is a

A. equilateral triangle

B. rectangle

C. circle

D. right angled triangle.

12 / 40

12. According to Law of Triangle of Forces

A. three forces acting at a point, can be represented by the sides of a triangle, each side being in proportion to the force

B. if the forces acting on a particle be represented in magnitude and direction by the two sides of a triangle taken in order, their resultant will be represented in magnitude and direction by the third side of the triangle, taken in opposite order.

C. three forces acting along the sides of a triangle are always in equilibrium

D. if three forces acting on a point can be represented in magnitude and direction, by the sides of a triangle taken in order, these will be in equilibrium

13 / 40

13. The Law of Polygon of Forces states that

A. if forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium

B. if forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side of the polygon taken in opposite order

C. if a polygen representing the forces acting at point in a body is closed, the forces are in equilibrium

D. if forces acting on a point can be epresented in magnitde and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by the closing side of the polygon

14 / 40

14. If two forces of 3 kg and 4 kg act at right angles to each other, their resultant force will be equal to

A. 7 kg

B. 117 kg

C. 1 kg

D. 5 kg

15 / 40

15. If two forces.P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is

A. P ? Q

B. Q1P

C. PIQ

D. P + Q

16 / 40

16. If two forces each equal to T in magnitude act at right angles, their effect may be neutralised by a third force acting along their bisector in opposite direction whose magnitude will be

A. 1/2 T

B. 1T

C. 3T

D. 2T

17 / 40

17. The resolved part of the resultant of two forces inclined at an angle 0 in a given direction is

A. algebraic sum of the resolveeparts of the forces in the direction

B. arithmetical sum of the resolved parts of the forces in the direction

C. sum of the forces multiplied by the sine 0

D. difference of the forces multiplied by cosine 0?

18 / 40

18. If two equal forces of magnitude P act at an angle 0, their resultant, will be
.

A. 2P in 0/2

B. P cos 0/2

C. P tan 0/2

D. 2P cos 0/2

19 / 40

19. A number of forces acting simultaneously on a particle of a body

A. may not be replaced by a single force

B. may be replaced by a single force through C.G. of the body

C. may be replaced by a couple

D. may be replaced by a single force

20 / 40

20. The centre of gravity of a quadrant of a circle lies along its central radius at a distance of

A. 0.1R

B. 0.6R

C. 0.2 R

D. 0.3 R

21 / 40

21. The centre of gravity of a homogenous body is the point at which the whole

A. weight of the body is assumed to be concentrated

B. All the options

C. volume of the body is assumed to be concentrated

D. area of the surface of the body is assumed to be concentrated

22 / 40

22. A 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

A. 10 kg

B. 40 kg

C. 100 kg.

D. 60 kg

23 / 40

23. A heavy ladder resting on a floor and against a vertical wall may not be in equilibrium, if

A. floor is rough and the wall is smooth

B. floor and wall both are rough surfaces,

C. floor and wall both are smooth surfaces

D. floor is smooth and the wall is rough

24 / 40

24. Kinetic friction may be defined as

A. friction force acting when the body is in motion

B. angle between normal reaction and resultant of normal reaction and limiting friction

C. ratio of limiting friction and normal reaction.

D. friction force acting when the body is just about to move

25 / 40

25. Two 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

A. 35 kg

B. 25 kg

C. 20 kg

D. 30 kg

26 / 40

26. Centre of gravity of a thin hollow cone lies on the axis of symmmetry at a height of

A. None of the options

B. one-fourth of the total height above base

C. one-half of the total height above base

D. one-third of the total height above base

27 / 40

27. The force acting on a point on the surface of a rigid body may be considered to act.

A. at the centre of gravity of the body

B. on any point on the line of action of the force

C. at any point on the surface normal to the line of action of the force.

D. on the periphery of the body

28 / 40

28. The maximum frictional force which comes into play, when a body just begins to slide over the surface of a an other body, is known

A. None of the options

B. limiting friction

C. Sliding friction

D. rolling friction

29 / 40

29. From a circular plate of a diameter 6 cm is cut out a circle whose diameter is equal to the radius of the plate. The C.G. of the remainder from the centre of circular plate is at a distance of

A. 2.5cm

B. 5 cm

C. 1 cm

D. 0.5 cm.

30 / 40

30. The forces which meet at one point and have their lines of action in different planes are called

A. intersecting forces

B. non-coplaner non-current forces

C. coplaner non-concurrent forces

D. non-coplaner concurrent forces

31 / 40

31. If the resultant of two forces P and Q acting at an angle 0 makes an angle a with P, then tan a equals P sin 0 Q sin 0

A. P + Q tan 0 Q+Psin

B. P - Q cos 0

C. Q sin 0

D. P + Q cos 0 P sin 0

32 / 40

32. Principle of Transmissibility of Forces states that, when a force acts upon a body, its effect is

A. same at every point on its line of action

B. different at different points on its line of action

C. maximum if it acts at the centre of gravity of the body

D. minimum if it acts at the C.G. of the body

33 / 40

33. Parallelogram Law of Forces states, "if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by

A. the diagonal of the parallelogram which passes through the point of intersection of the forces"

B. its shorter side"

C. the diagonal of the parallelogram which does not pass through the point of intersection of the forces"

D. its longer side"

34 / 40

34. A square hole is punched out of a circular lamina, the diagonal of the square being the radius of the circle. If r is the radius of the circle, the C.G. of the remainder from the corner of the square on the circumference will be

A. rift+ 0.25J

B. r(rc + 0.25)

C. rqc_-. 0.25)

D. r(iT - 0.5)Tr -I- 0.25

35 / 40

35. Pick up the incorrect statement from the following :

A. The C.G. of a semicircle is at a distance of r/2 from the centre

B. The C.G. of a rectangle is at the intersection of its diagonals

C. The C.G. of a triangle is at the intersecton of its medians

D. The C.G. of a circle is at its centre

36 / 40

36. The following is not a law of static friction :

A. The force of friction is dependent upon the area of contact

B. The force of friction always acts in a direction opposite to that in which the body tends to move

C. The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces.

D. The force of friction depends upon the roughness of the surface

37 / 40

37. Effect of a force on a body depends upon its

A. magnitude

B. position .

C. direction

D. All the options

38 / 40

38. The necessary condition of equilibrium of a body, is :

A. algebraic sum of vertical components of all the forces must be zero

B. All the options

C. algebraic sum of horizontal components of all the forces must be zero

D. algebraic sum of the moments of the forces about a point must be zero

39 / 40

39. If a body is acted upon by a number of coplaner non-concurrent forces, it may

A. move in any one direction

B. All the options

C. move in any one direction rotating about itself

D. rotate about itself without moving

40 / 40

40. The resultant of two forces P and Q acting at an angle 0, is

A. P2 + Q2 + 2PQ tan 0

B. P2+ Q2 + 2PQ cos 0

C. P2 + Q2 + 2P sin 0

D. P2 + Q2 + 2PQ cos 0

Your score is

The average score is 22%

MEE 203 CBT PRACTICE TEST

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