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MCQs

Total Questions : 206 | Page 18 of 21 pages
Question 171. In which power transmitting drive polygon effect is observed?
  1.    Belt drive
  2.    Chain drive
  3.    Both a. and b.
  4.    None of the above
 Discuss Question
Answer: Option B. -> Chain drive
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 172. What is meant by gear ratio?
  1.    The ratio of pinion speed and gear speed
  2.    The ratio of number of teeth on pinion and number of teeth on gear
  3.    Both a. and b.
  4.    None of the above
 Discuss Question
Answer: Option A. -> The ratio of pinion speed and gear speed
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 173. Deformation per unit length is called as ________
  1.    strain
  2.    stress
  3.    modulus of elasticity
  4.    none of the above
 Discuss Question
Answer: Option A. -> strain
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 174. In stress-strain diagram, up to proportional limit ______
  1.    stress is inversely proportional to strain
  2.    force is directly proportional to displacement
  3.    stress is directly proportional to strain
  4.    strain is directly proportional to stress
 Discuss Question
Answer: Option C. -> stress is directly proportional to strain
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 175. Which gears are used to connect two intersecting shaft axes?
  1.    Crossed helical gear
  2.    Worm and worm wheel
  3.    Bevel gears
  4.    All of the above
 Discuss Question
Answer: Option C. -> Bevel gears
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 176. Factor of safety is the ratio of _________
  1.    working stress and ultimate strength
  2.    yield strength and endurance strength
  3.    ultimate strength and yield strength
  4.    yield strength and working stress
 Discuss Question
Answer: Option D. -> yield strength and working stress
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 177. Which of the following statements is/are true for alloy steels?
  1.    They contain carbon more than 1.7%
  2.    They are ductile
  3.    They have low resilience and toughness
  4.    All of the above
 Discuss Question
Answer: Option B. -> They are ductile
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 178. Which of the following materials do not have a well defined yield point?
  1.    Heat treated steel
  2.    Concrete
  3.    Carbon fiber
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 179. Copper when alloyed with zinc is known as
  1.    Brass
  2.    Bronze
  3.    Babbits
  4.    All of the above
 Discuss Question
Answer: Option A. -> Brass
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 180. Which of the following is a ferrous alloy?
  1.    Brass
  2.    Aluminum alloys
  3.    Cast steel
  4.    All of the above
 Discuss Question
Answer: Option C. -> Cast steel
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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