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Total Questions : 2100 | Page 4 of 210 pages
Question 31. Peaucellier’s mechanism has
  1.     Eight links
  2.     Six links
  3.     Four links
  4.     Twelve links
 Discuss Question
Answer: Option A. ->  Eight links
Question 32. If ‘d₁’ and ‘d₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to
  1.     D₁/D₂
  2.     D₂/D₁
  3.     D₁.D₂
  4.     D₁
 Discuss Question
Answer: Option D. ->  D₁
Question 33. If ‘d₁’ and ‘d₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to
  1.     D₁/D₂
  2.     D₂/D₁
  3.     D₁.D₂
  4.     D₁
 Discuss Question
Answer: Option D. ->  D₁
Question 34. If ‘d₁’ and ‘d₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to
  1.     D₁/D₂
  2.     D₂/D₁
  3.     D₁.D₂
  4.     D₁
 Discuss Question
Answer: Option D. ->  D₁
Question 35. If ‘d₁’ and ‘d₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to
  1.     D₁/D₂
  2.     D₂/D₁
  3.     D₁.D₂
  4.     D₁
 Discuss Question
Answer: Option D. ->  D₁
Question 36. When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a
  1.    Screw pair
  2.    Spherical pair
  3.    Turning pair
  4.    Sliding pair
 Discuss Question
Answer: Option A. -> Screw pair
Question 37. The main disadvantage of the sliding pair is that it is
  1.    Bulky
  2.    Wears rapidly
  3.    Difficult to manufacture
  4.    Both (A) and (B) above
 Discuss Question
Answer: Option D. -> Both (A) and (B) above
Question 38. The mechanism in which two are turning pairs and two are sliding pairs, is called a
  1.    Double slider crank chain
  2.    Elliptical trammel
  3.    Scotch yoke mechanism
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 39. In a pantograph, all the pairs are
  1.    Turning pairs
  2.    Sliding pairs
  3.    Spherical pairs
  4.    Self-closed pairs
 Discuss Question
Answer: Option A. -> Turning pairs
Question 40. Frequency of vibrations is usually expressed in
  1.    Number of cycles per hour
  2.    Number of cycles per minute
  3.    Number of cycles per second
  4.    None of these
 Discuss Question
Answer: Option C. -> Number of cycles per second

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