Design Of Machine Elements Set 14

Mechanical Engineering

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This set of Design of Machine Elements Multiple Choice Questions & Answers (MCQs) focuses on Design Of Machine Elements Set 14

Q1 | Zerol gears give lesser contact ratio.
  • true
  • no, larger contact ratio
  • zero contact
  • none of the listed
Answer: no, larger contact ratio
Q2 | The bearing characteristic number shown in the graph is directly proportional to the unit bearing pressure.
  • true
  • false
Answer: false
Q3 | Hydrodynamic lubrication takes place in region?
  • bc
  • cd
  • both bc and cd
  • none of the mentioned
Answer: cd
Q4 | Coefficient of friction is minimum at
  • it is same at each point
  • b
  • c
  • d
Answer: c
Q5 | Bearing modulus is the bearing characteristic number at
  • b
  • c
  • d
  • none of the listed
Answer: c
Q6 | If viscosity of the lubricant is very low than BCN will lie in the region
  • bc
  • point c
  • cd
  • can’t be determined
Answer: bc
Q7 | The fundamental equation for viscous flow is given by ∆pbhᵌ/6µl where symbols have their usual meanings.
  • 6 is to be replaced by 3
  • 6 is to be replaced by 12
  • 6 is to be replaced by 9
  • 6 is to be replaced by 15
Answer: 6 is to be replaced by 12
Q8 | A single transverse weld is preferred over double transverse fillet weld.
  • true
  • false
Answer: false
Q9 | Transverse fillet weld can be designed using the same equations as of parallel fillet weld.
  • true
  • false
Answer: false
Q10 | 5 SELECTION OF ROLLING CONTACT BEARINGS
  • thrust
  • radial
  • longitudinal
  • transversal
Answer: thrust
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