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MCQs

Total Questions : 1187 | Page 66 of 119 pages
Question 651. The periodic time of a particle with simple harmonic motion is __________ proportional to the angular velocity.
  1.    directly
  2.    inversely
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> inversely
Answer: (b).inversely
Question 652. The motion of a particle round a fixed axis is
  1.    translatory
  2.    rotary
  3.    circular
  4.    translatory as well as rotatry
 Discuss Question
Answer: Option C. -> circular
Answer: (c).circular
Question 653. If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
  1.    change
  2.    does not change
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> does not change
Answer: (b).does not change
Question 654. The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ .
  1.    less than
  2.    greater than
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> less than
Answer: (a).less than
Question 655. Which of the following is a scalar quantity?
  1.    Force
  2.    Speed
  3.    Velocity
  4.    Acceleration
 Discuss Question
Answer: Option B. -> Speed
Answer: (b).Speed
Question 656. The loss of kinetic energy during elastic impact is zero.
  1.    Agree
  2.    Disagree
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Agree
Answer: (a).Agree
Question 657. The point, through which the whole weight of the body acts, irrespective of its position, is known as
  1.    moment of inertia
  2.    centre of gravity
  3.    centre of percussion
  4.    centre of mass
 Discuss Question
Answer: Option B. -> centre of gravity
Answer: (b).centre of gravity
Question 658. 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. This statement is known as
  1.    Newton's first law of motion
  2.    Newton's second law of motion
  3.    Newton's third law of motion
  4.    none of these
 Discuss Question
Answer: Option B. -> Newton's second law of motion
Answer: (b).Newton's second law of motion
Question 659. A couple produces
  1.    translatory motion
  2.    rotational motion
  3.    combined translatory and rotational motion
  4.    none of the above
 Discuss Question
Answer: Option B. -> rotational motion
Answer: (b).rotational motion
Question 660. In a screw jack, the effort required to lift the load is given by(where W = Load lifted, α = Helix angle, and φ = Angle of friction.)
  1.    P = W tan (α - φ)
  2.    P = W tan (α + φ)
  3.    P = W tan (φ - α)
  4.    P = W cos (α + φ)
 Discuss Question
Answer: Option B. -> P = W tan (α + φ)
Answer: (b).P = W tan (α + φ)

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