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MCQs

Total Questions : 2607 | Page 118 of 261 pages
Question 1171.
Two shafts of the same length and material are joined in series. If the
ratio of their diameters is 2, then the ratio of their angles of twist
will be
  1.    2
  2.    4
  3.    8
  4.    16
 Discuss Question
Answer: Option D. -> 16


Question 1172.

The strength of the un-riveted plate (P) per pitch length is equal to



  1.    p.d.`sigma`
  2.    p.t.`sigma`
  3.    (p - d)`sigma`t
  4.    (p - d)t`sigma`t
 Discuss Question
Answer: Option B. -> p.t.`sigma`


Question 1173.

The property of a
bearing material which has the ability to accomodate small particles of
dust, grit etc. without scoring the material of the journal, is called


  1.    bondability
  2.    embeddability
  3.    comformability
  4.    fatigue strength
 Discuss Question
Answer: Option B. -> embeddability


Question 1174.

When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is


  1.    0.20
  2.    0.35
  3.    0.50
  4.    0.65
 Discuss Question
Answer: Option C. -> 0.50


Question 1175.

The root angle of a bevel gear is equal to


  1.    pitch angle - addendum angle
  2.    pitch angle + addendum angle
  3.    pitch angle - dedendum angle
  4.    pitch angle + dedendum angle
 Discuss Question
Answer: Option C. -> pitch angle - dedendum angle


Question 1176.

The lead angle of a worm is `22.5^circ`. Its helix angle will be



  1.    `22.5^circ`
  2.    ` 45^circ`
  3.    `67.5^circ`
  4.    ` 90^circ`
 Discuss Question
Answer: Option C. -> `67.5^circ`


Question 1177.

Which of the following formula is used in designing a connecting rod ?


  1.    Euler's formula
  2.    Rankine's formula
  3.    Johnson's straight line formula
  4.    Johnson's parabolic formula
 Discuss Question
Answer: Option B. -> Rankine's formula


Question 1178.

In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called


  1.    normal pitch
  2.    axial pitch
  3.    diametral pitch
  4.    module
 Discuss Question
Answer: Option B. -> axial pitch


Question 1179.


The dedendum is the radial distance from the


  1.    pitch circle to the top of a tooth
  2.    pitch circle to the bottom of a tooth
  3.    top of a tooth to the bottom of a tooth
  4.    addendum circle to the clearance circle
 Discuss Question
Answer: Option B. -> pitch circle to the bottom of a tooth


Question 1180.

 
In a steam engine, the valve rod is connected to an eccentric rod by means of


  1.    cotter joint
  2.    knuckle joint
  3.    universal joint
  4.    flange coupling
 Discuss Question
Answer: Option B. -> knuckle joint


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