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MCQs

Total Questions : 2607 | Page 67 of 261 pages
Question 661. According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by (where d and t are in mm)
  1.    d = t
  2.    d = 1.6 t
  3.    d = 2 t
  4.    d = 6 t
 Discuss Question
Answer: Option D. -> d = 6 t
Answer: (d).d = 6 t
Question 662. The value of stress concentration factor depends upon
  1.    material of the part
  2.    geometry of the part
  3.    material and geometry of the part
  4.    none of these
 Discuss Question
Answer: Option C. -> material and geometry of the part
Answer: (c).material and geometry of the part
Question 663. A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called
  1.    zero film bearing
  2.    boundary lubricated bearing
  3.    hydrodynamic lubricated bearing
  4.    hydrostatic lubricated bearing
 Discuss Question
Answer: Option D. -> hydrostatic lubricated bearing
Answer: (d).hydrostatic lubricated bearing
Question 664. The contact ratio is the ratio of
  1.    length of path of contact to the circular pitch
  2.    length of arc of contact to the circular pitch
  3.    length of arc of approach to the circular pitch
  4.    length of arc of recess to the circular pitch
 Discuss Question
Answer: Option B. -> length of arc of contact to the circular pitch
Answer: (b).length of arc of contact to the circular pitch
Question 665. The yield point in static loading is __________ as compared to fatigue loading.
  1.    higher
  2.    lower
  3.    same
  4.    None of these
 Discuss Question
Answer: Option A. -> higher
Answer: (a).higher
Question 666. In case of pressure vessels having closed ends, the fluid pressure induces
  1.    longitudinal stress
  2.    circumferential stress
  3.    shear stress
  4.    none of these
 Discuss Question
Answer: Option D. -> none of these
Answer: (d).none of these
Question 667. A machine part subjected to __________ is called a strut.
  1.    an axial tensile force
  2.    an axial compressive force
  3.    a tangential force
  4.    any one of these
 Discuss Question
Answer: Option B. -> an axial compressive force
Answer: (b).an axial compressive force
Question 668. In order to remove internal stresses produced by hardening the steel, the process usually adopted is
  1.    tempering
  2.    annealing
  3.    normalising
  4.    spheroidising
 Discuss Question
Answer: Option A. -> tempering
Answer: (a).tempering
Question 669. A pressure vessel is said to be a thin shell, if the ratio of wall thickness to its diameter is equal to 1/10.
  1.    Yes
  2.    No
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> No
Answer: (b).No
Question 670. The lower deviation is the algebraic difference between the
  1.    minimum limit and the basic size
  2.    maximum limit and the basic size
  3.    actual size and the corresponding basic size
  4.    none of the above
 Discuss Question
Answer: Option A. -> minimum limit and the basic size
Answer: (a).minimum limit and the basic size

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