Questions and answers for exam Preparation

MCQs

Total Questions : 1284 | Page 5 of 129 pages

Question 41. If ‘l’ is the span of a light suspension bridge who’s each cable carries total weight (w) and the central dip is ‘y’, the horizontal pull at each support, is

wl/4y
wl/8y
wl/2y
wl

Discuss Question

Answer: Option B. -> wl/8y

Question 42. If ‘l’ is the span of a light suspension bridge who’s each cable carries total weight (w) and the central dip is ‘y’, the horizontal pull at each support, is

wl/4y
wl/8y
wl/2y
wl

Discuss Question

Answer: Option B. -> wl/8y

Question 43. If ‘l’ is the span of a light suspension bridge who’s each cable carries total weight (w) and the central dip is ‘y’, the horizontal pull at each support, is

wl/4y
wl/8y
wl/2y
wl

Discuss Question

Answer: Option B. -> wl/8y

Question 44. Newton’s law of motion is:

Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
To every action, there is always an equal and opposite reaction
All the above

Discuss Question

Answer: Option D. -> All the above

Question 45. Newton’s law of motion is:

Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
To every action, there is always an equal and opposite reaction
All the above

Discuss Question

Answer: Option D. -> All the above

Question 46. Newton’s law of motion is:

Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
To every action, there is always an equal and opposite reaction
All the above

Discuss Question

Answer: Option D. -> All the above

Question 47. Newton’s law of motion is:

Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
To every action, there is always an equal and opposite reaction
All the above

Discuss Question

Answer: Option D. -> All the above

Question 48. ‘u₁’ and ‘u₂’ are the velocities of approach of two moving bodies in the same direction and their corresponding velocities of separation are ‘v₁’ and ‘v₂’. as per newton's law of collision of elastic bodies, the coefficient of restitution (e) is given by

e = v₁ - v₂/u₂ - u₁
e = u₂ - u₁/v₁ - v₂
e = v₂ - v₁/u₁ - u₂
e = v₁ - v₂/u₂ + u₁

Discuss Question

Answer: Option C. -> e = v₂ - v₁/u₁ - u₂

Question 49. ‘u₁’ and ‘u₂’ are the velocities of approach of two moving bodies in the same direction and their corresponding velocities of separation are ‘v₁’ and ‘v₂’. as per newton's law of collision of elastic bodies, the coefficient of restitution (e) is given by

e = v₁ - v₂/u₂ - u₁
e = u₂ - u₁/v₁ - v₂
e = v₂ - v₁/u₁ - u₂
e = v₁ - v₂/u₂ + u₁

Discuss Question

Answer: Option C. -> e = v₂ - v₁/u₁ - u₂

Question 50. ‘u₁’ and ‘u₂’ are the velocities of approach of two moving bodies in the same direction and their corresponding velocities of separation are ‘v₁’ and ‘v₂’. as per newton's law of collision of elastic bodies, the coefficient of restitution (e) is given by