**If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is:**

Options are :

- 60°
- 57°
- 59°
- 58°

**Answer :**58°

**The distance of the c.g. of a semi-circular arc of radius r from its diameter along the radius of symmetry, is:**

**A.**

**B.**

**C.**

**D.**

Options are :

- B
- A
- D
- C

**Answer :**D

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 8

**To avoid bending action at the base of a pier:**

Options are :

- Suspension cable and anchor cables are attached to a saddle mounted on rollers on top of the pier
- Suspension and anchor cables are kept at the same level
- None the these
- Suspension and anchor cables are fixed to pier top

**Answer :**Suspension and anchor cables are fixed to pier top

**A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length:**

Options are :

- Is not changed but weight of the bob is decreased
- Must be decreased
- Is not changed but weight of the bob is increased
- Must be increased
- None of these

**Answer :**Must be increased

**The units of moment of inertia of an area, are:**

Options are :

- m^(3)
- kg/m^(2)
- m^(4)
- kg-m^(2)
- kg/m

**Answer :**m^(4)

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 9

**The
ratio of the ranges on the inclined plane with motion upward and with
motion downward for a given velocity, angle of projection will be:**

**A.**

**B.**

**C.**

**D.**

Options are :

- B
- A
- D
- C

**Answer :**B

*One
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:**

Options are :

- 110 kg
- 105.5 kg
- 108.5 kg
- 102.5 kg

**Answer :**102.5 kg

*One
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:**

Options are :

- 19.5 kg
- 17.5 kg
- 22.5 kg
- 25 kg

**Answer :**22.5 kg

**The resolved part of the resultant of two forces inclined at an angle ? in a given direction is:**

Options are :

- Algebraic sum of the resolved parts of the forces in the direction
- Sum of the forces multiplied by the sine ?
- Arithmetical sum of the resolved parts of the forces in the direction
- Sum of the forces multiplied by the tangent ?°
- Difference of the forces multiplied by cosine ?°

**Answer :**Algebraic sum of the resolved parts of the forces in the direction

**A
particle moves with a velocity of 2 m/sec in a straight line with a
negative acceleration of 0.1 m/sec2. Time required to traverse a
distance of 1.5 m, is:**

Options are :

- 10 sec
- 15 sec
- 40 sec
- 30 sec
- 20 sec

**Answer :**20 sec

**The following is not a law of static friction:**

Options are :

- The force of friction depends upon the roughness of the surface
- The force of friction is dependent upon the area of contact
- The force of friction always acts in a direction opposite to that in which the body tends to move
- The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces

**Answer :**The force of friction always acts in a direction opposite to that in which the body tends to move

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 1

**Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of:**

Options are :

- 10 Newtons
- 12 Newtons
- 8 Newtons
- 5 Newtons

**Answer :**10 Newtons

**The shape of a suspended cable under its own weight, is:**

Options are :

- Parabolic
- Circular
- Catenary
- Elliptical

**Answer :**Catenary

**Lami's theroem states that:**

Options are :

- Three forces acting at a point are always in equilibrium
- 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
- None of these
- 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
- 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

**Answer :**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

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 2

**For the system of the loads shown in below figure, the time required for the 6.6 kg load to fall on the edge, is:**

Options are :

- 3 sec
- 4 sec
- 5 sec
- 1 sec
- 2 sec

**Answer :**3 sec

**The resultant of the forces acting on a body will be zero if the body:**

Options are :

- Moves with variable velocity in a straight line
- Rotates
- Moves along a curved path
- Does not move at all

**Answer :**Does not move at all

**A body is said to move with Simple Harmonic Motion if its acceleration, is:**

Options are :

- Proportional to the distance from the point of reference and directed towards it
- Inversely proportion to the distance from the point of reference
- None of these
- Proportional to the square of the distance from the point of reference
- Always directed away from the centre, the point of reference

**Answer :**Proportional to the distance from the point of reference and directed towards it

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 3

**The following statement is one of the laws of Dynamic friction:**

Options are :

- The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction
- For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed
- All the above
- The force of friction always acts in a direction opposite to that in which a body is moving

**Answer :**All the above

**According to Law of Triangle of Forces:**

Options are :

- If three forces acting at a point are in equilibrium each force is proportional to the sine of the angle between the other two
- Three forces acting at a point, can be rep-resented by the sides of a triangle, each side being in proportion to the force
- Three forces acting along the sides of a triangle are always in equilibrium
- 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
- 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

**Answer :**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

**Pick up the correct statement from the following for the structure shown in below figure.**

Options are :

- The horizontal reaction at C is 2?3t ?
- The horizontal reaction at A is 2?3t ?
- The vertical reaction at A is zero
- The vertical reaction at C is 2 t ?
- All the above

**Answer :**All the above

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 4

**Power can be expressed as:**

Options are :

- Work/energy
- Work/time
- Work x time
- Work/distance

**Answer :**Work/time

**The velocity ratio of the differential wheel and axle is:**

**A.**

**B.**

**C.**

**D.**

Options are :

- D
- C
- B
- A

**Answer :**B

**If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called:**

Options are :

- Zero work
- Imaginary work
- Virtual work
- Negative work

**Answer :**Negative work

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 5

**The velocity of a moving body, is:**

Options are :

- A vector quantity
- None of these
- A scalar quantity
- A scalar as well as a vector quantity

**Answer :**A vector quantity

**If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along:**

Options are :

- None of these
- The same line in opposite sense
- The perpendicular to both the lines
- The same line in the same sense

**Answer :**The same line in opposite sense

**A
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:**

Options are :

- 70 m/sec
- 80 m/sec
- 85 m/sec
- 75 m/sec
- 90 m/sec

**Answer :**90 m/sec

**Equation of motion of a point in a straight line, is:**

**A.**

*v* = *u* + *ft*

**B.**

*S* = *ut* +

**C.**

2*fS* = *v*2 - *u*2

**D.**

All the above

Options are :

- D
- A
- C
- B

**Answer :**D

**A particle executes a simple harmonic motion. While passing through the mean position, the particle possesses:**

Options are :

- Minimum kinetic, energy and minimum potential energy
- Maximum kinetic energy and maximum potential energy
- Minimum kinetic energy and maximum potential energy
- Maximum kinetic energy and minimum potential energy
- None of these

**Answer :**Maximum kinetic energy and minimum potential energy

**A projectile is fired at an angle ? to the vertical. Its horizontal range will be maximum when ? is:**

Options are :

- 45°
- 90°
- 0°
- 60°
- 30°

**Answer :**45°

**According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centres lie on:**

Options are :

- A point
- Two straight lines
- A straight line
- A triangle

**Answer :**A straight line

- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 2
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 4
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 7
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 3
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 8
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 5
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 9