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Total Questions : 543 | Page 49 of 55 pages
Question 481. Which of the following statement is correct?
  1.    The primary unbalanced force is less than the secondary unbalanced force
  2.    The primary unbalanced force is maximum twice in one revolution of the crank
  3.    The unbalanced force due to reciprocating masses varies in magnitude and direction both
  4.    The magnitude of swaying couple in locomotives is inversely proportional to the distance between the two cylinder center lines
 Discuss Question
Answer: Option B. -> The primary unbalanced force is maximum twice in one revolution of the crank
Question 482. Which of the following statement is correct?
  1.    The power absorbed in operating the piston valve is less than D-slide valve
  2.    The wear of the piston valve is less than the wear of the D-slide valve
  3.    The D-slide valve is also called outside admission valve
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 483. Which of the following statement is correct?
  1.    For constant velocity ratio transmission between two gears, the common normal at the point of contact must always pass through a fixed point on the line joining the centers of rotation of gears.
  2.    For involute gears, the pressure angle changes with the change in center distance between gears.
  3.    The epicyclic gear trains involve rotation of at least one gear axis about some other gear axis.
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 484. Idler pulley is used
  1.    For changing the direction of motion of the belt
  2.    For applying tension
  3.    For increasing velocity ratio
  4.    All of the above
 Discuss Question
Answer: Option B. -> For applying tension
Question 485. When a point at the end of a link moves with constant angular velocity, its acceleration will have
  1.    Radial component only
  2.    Tangential component only
  3.    Coriolis component only
  4.    Radial and tangential components both
 Discuss Question
Answer: Option A. -> Radial component only
Question 486. Sense of tangential acceleration of a link
  1.    Is same as that of velocity
  2.    Is opposite to that of velocity
  3.    Could be either same or opposite to velocity
  4.    Is perpendicular to that of velocity
 Discuss Question
Answer: Option C. -> Could be either same or opposite to velocity
Question 487. When a point moves along a straight line, its acceleration will have
  1.    Radial component only
  2.    Tangential component only
  3.    Coriolis component only
  4.    Radial and tangential components both
 Discuss Question
Answer: Option B. -> Tangential component only
Question 488. For a kinematic chain to be considered as mechanism
  1.    Two links should be fixed
  2.    One link should be fixed
  3.    None of the links should be fixed
  4.    There is no such criterion
 Discuss Question
Answer: Option B. -> One link should be fixed
Question 489. The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is
  1.    0° and 90°
  2.    180° and 360°
  3.    Both (A) and (B)
  4.    None of these
 Discuss Question
Answer: Option C. -> Both (A) and (B)
Question 490. The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is
  1.    0° and 90°
  2.    0° and 180°
  3.    90° and 180°
  4.    180° and 360°
 Discuss Question
Answer: Option B. -> 0° and 180°

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