**The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is:**

Options are :

- 1.885 m/sec
- 0.18845 m/sec
- 188.5 m/sec
- 18.85 m/sec

**Answer :**1.885 m/sec

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 2

**The Law of Polygon of Forces states that:**

Options are :

- 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
- If forces acting on a point can be represented 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
- If forces acting on a point can be represented of a polygon taken in order, their 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
- If a polygen representing the forces acting at point in a body is closed, the forces are in equilibrium

**Answer :**If forces acting on a point can be represented of a polygon taken in order, their 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

**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:**

Options are :

- The diagonal of the parallelogram which does not pass through the point of intersection of the forces"
- The diagonal of the parallelogram which passes through the point of intersection of the forces"
- Its shorter side"
- Half the sum of the diagonals"
- Its longer side"

**Answer :**The diagonal of the parallelogram which passes through the point of intersection of the forces"

**The equation of motion of a particle starting from rest along a straight line is x = t^(3) - 3t^(2) + 5. The ratio of the accelerations after 5 sec and 3 sec will be:**

Options are :

- 5
- 4
- 3
- 2

**Answer :**2

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 3

**If
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:**

Options are :

- A uniform retardation
- A uniform acceleration
- None of these
- A variable retardation
- A variable acceleration

**Answer :**A variable acceleration

**If
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:**

Options are :

- 1
- 2
- 5
- 4
- 3

**Answer :**3

**The resultant of two forces P and Q acting at an angle ?, is:**

**A.**

*P^*(2) + *Q^*(2) + 2*P* sin ?

**B.**

*P^*(2) + *Q^*(2) + 2*P* cos ?

**C.**

*P^*(2) + *Q^*(2) + 2*P* tan ?

**D.**

**E.**

Options are :

- C
- B
- D
- A

**Answer :**D

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 4

**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:**

Options are :

- 20 kg
- 40 kg
- 35 kg
- 25 kg
- 30 kg

**Answer :**25 kg

**At 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:**

Options are :

- 1 km/hrs
- 10 km/hrs
- 14 km/hrs
- 7 km/hrs
- 2 km/hrs

**Answer :**10 km/hrs

**The product of mass and velocity of a moving a body, is called:**

Options are :

- Impulse
- Moment
- Power
- Momentum

**Answer :**Momentum

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 5

*A
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:**

Options are :

- 100 g
- 40 g
- 80 g
- 60 g

**Answer :**80 g

**The tension in a cable supporting a lift:**

Options are :

- Is less when the lift is moving upwards
- Is less when the lift is moving downwards
- Remains constant whether its moves downwards or upwards
- Is more when the lift is moving downwards

**Answer :**Is less when the lift is moving downwards

**A
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:**

Options are :

- 1.00 m/sec
- 0.01 m/sec
- 0.05 m/sec
- 1.5 m/sec

**Answer :**0.05 m/sec

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 6

**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.**

**B.**

**C.**

**D.**

Options are :

- A
- C
- B
- D

**Answer :**C

**Pick up the correct statement from the following:**

Options are :

- The gravitational intensity declines with height
- All the above
- Nature plays an important role in the launch of a satellite
- The earth's gravity reduces the speed of a satellite by 32 km per second
- The gravitational force relents as the satellite climbs higher

**Answer :**All the above

**The C.G. of a right circular cone lies on its axis of symmetry at a height of:**

Options are :

- h/3
- h/4
- h/6
- h/2
- h/5

**Answer :**h/4

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 7

**The angle which an inclined surface makes with the horiontal when a body placed on it is on the point of moving down, is called:**

Options are :

- None of these
- Angle of friction
- Angle of inclination
- Angle of repose

**Answer :**Angle of repose

**The unit of Moment of Inertia of a body, is:**

Options are :

- m^(4)
- m^(3)
- None of these
- m^(2)
- m

**Answer :**m^(4)

**The centre of gravity of a triangle is at the point where three:**

Options are :

- None of these
- Medians of the triangle meet
- Bisectors of the angle of the triangle meet
- Perpendicular bisectors of the sides of the triangle meet

**Answer :**Medians of the triangle meet

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 8

**Engineer's units of force, is:**

Options are :

- All the above
- Newton in absolute units
- Newton and dyne in absolute units
- Dyne in absolute units

**Answer :**Newton in absolute units

**The c.g. of the shaded area of the below figure whose curve OM is a parabola from y-axis, is:**

**A.**

**B.**

**C.**

**D.**

**E.**

Options are :

- B
- D
- E
- C
- A

**Answer :**B

**The c.g. of a thin hollow cone of height h, above its base lies on the axis, at a height of:**

**A.**

**B.**

**C.**

**D.**

Options are :

- A
- B
- C
- D

**Answer :**C

Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 9

**The length of a Second's pendulum, is:**

Options are :

- 101.10 cm
- 101 cm
- 99.4 cm
- 100 cm
- 99.0 cm

**Answer :**99.4 cm

**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 efficiency of the
lifting machine is:**

Options are :

- 55%
- 40%
- 30%
- 50%

**Answer :**40%

**One Newton force, is:**

Options are :

- 10^(3) dynes
- 10^(6) dynes
- 10^(7) dynes
- 10^(4) dynes
- 10^(5) dynes

**Answer :**10^(5) dynes

**The locus of the instantaneous centre of a moving rigid body, is:**

Options are :

- Straight line
- Centroid
- Involute
- Spiral

**Answer :**Centroid

**Which one of the following statements is true ?**

Options are :

- The tangent of the angle of repose is equal to coefficient of friction
- The angle of repose is equal to angle of friction
- The tangent of the angle of friction is equal to coefficeint of friction
- All the above

**Answer :**All the above

**If the gravitational accelerational at any place is doubled, the weight of a body, will:**

Options are :

- None of these
- Not be affected
- Be reduced to half
- Be doubled

**Answer :**Be doubled

**The vertical reaction at the support A of the structure shown in below figure, is**

Options are :

- 3 t
- 2 t
- 1 t
- 2.5 t

**Answer :**3 t

**To attain the synchronous orbit, the launch of a satellite, is done from a place:**

Options are :

- on 30° latitude
- on the poles
- on 60° latitude
- on 45° latitude
- on equator

**Answer :**on equator

- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 4
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 5
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 6
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 9
- 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 2
- Applied Mechanics MCQ Practice Questions (Civil Engineering) Set 8