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MCQs

Total Questions : 543 | Page 50 of 55 pages
Question 491. The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as
  1.    Completely constrained motion
  2.    Incompletely constrained motion
  3.    Successfully constrained motion
  4.    None of these
 Discuss Question
Answer: Option A. -> Completely constrained motion
Question 492. In elliptical trammels
  1.    All four pairs are turning
  2.    Three pairs turning and one pair sliding
  3.    Two pairs turning and two pairs sliding
  4.    One pair turning and three pairs sliding
 Discuss Question
Answer: Option C. -> Two pairs turning and two pairs sliding
Question 493. The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.
  1.    Inner edge
  2.    Outer edge
  3.    Corners
  4.    None of these
 Discuss Question
Answer: Option A. -> Inner edge
Question 494. If some links are connected such that motion between them can take place in more than one direction, it is called
  1.    Incompletely constrained motion
  2.    Partially constrained motion
  3.    Completely constrained motion
  4.    Successfully constrained motion
 Discuss Question
Answer: Option A. -> Incompletely constrained motion
Question 495. Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts?
  1.    Theory of machines
  2.    Applied mechanics
  3.    Mechanisms
  4.    Kinetics
 Discuss Question
Answer: Option D. -> Kinetics
Question 496. The frequency of oscillation of a torsional pendulum is
  1.    $$\frac{{2\pi {\text{k}}}}{{\text{r}}}\sqrt {\frac{{\text{g}}}{l}} $$
  2.    $$\frac{{\text{r}}}{{2\pi {\text{k}}}}\sqrt {\frac{l}{{\text{g}}}} $$
  3.    $$\frac{{2\pi {\text{r}}}}{{\text{k}}}\sqrt {\frac{{\text{g}}}{l}} $$
  4.    $$\frac{{\text{r}}}{{2\pi {\text{k}}}}\sqrt {\frac{{\text{g}}}{l}} $$
 Discuss Question
Answer: Option D. -> $$\frac{{\text{r}}}{{2\pi {\text{k}}}}\sqrt {\frac{{\text{g}}}{l}} $$
Question 497. The unbalanced force due to reciprocating masses
  1.    Varies in magnitude but constant in direction
  2.    Varies in direction but constant in magnitude
  3.    Varies in magnitude and direction both
  4.    Constant in magnitude and direction both
 Discuss Question
Answer: Option A. -> Varies in magnitude but constant in direction
Question 498. If the number of links in a mechanism is equal to $$l$$, then the numbers of possible inversions are equal to
  1.    $$l$$ - 2
  2.    $$l$$ - 1
  3.    $$l$$
  4.    $$l$$ + 1
 Discuss Question
Answer: Option C. -> $$l$$
Question 499. The moment on the pulley which produces rotation is called
  1.    Inertia
  2.    Momentum
  3.    Moment of momentum
  4.    Torque
 Discuss Question
Answer: Option D. -> Torque
Question 500. The length of a simple pendulum which gives the same frequency as the compound pendulum, is
  1.    $${\text{kG}} + {l_1}$$
  2.    $${\text{k}}{{\text{G}}^2} + {l_1}$$
  3.    $$\frac{{{\text{k}}{{\text{G}}^2} + l_1^2}}{{{l_1}}}$$
  4.    $$\frac{{{\text{kG}} + l_1^2}}{{{l_1}}}$$
 Discuss Question
Answer: Option C. -> $$\frac{{{\text{k}}{{\text{G}}^2} + l_1^2}}{{{l_1}}}$$

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