MCQs

Total Questions : 2607 | Page 42 of 261 pages
Question 411. In case of V belt drive
  1.    The belt should touch the bottom of groove in the pulley
  2.    The belt should not touch the bottom of groove in the pulley
  3.    The belt should not touch the sides of groove in the pulley
  4.    None of the above
 Discuss Question
Answer: Option B. -> The belt should not touch the bottom of groove in the pulley
Question 412. In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to
  1.    Reduce vibration
  2.    Reduce slip
  3.    Ensure uniform loading
  4.    Ensure proper alignment
 Discuss Question
Answer: Option C. -> Ensure uniform loading
Question 413. The allowable static stress for steel gears is approximately __________ of the ultimate tensile stress.
  1.    One-fourth
  2.    One-third
  3.    One-half
  4.    Double
 Discuss Question
Answer: Option B. -> One-third
Question 414. In a butt welded joint, the size of weld is __________ the throat of weld.
  1.    0.5 times
  2.    Equal to
  3.    2 times
  4.    Double
 Discuss Question
Answer: Option B. -> Equal to
Question 415. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
  1.    0.5 times
  2.    Equal to
  3.    2 times
  4.    Double
 Discuss Question
Answer: Option C. -> 2 times
Question 416. The radial distance of a tooth from the pitch circle to the top of the tooth is called
  1.    Addendum
  2.    Dedendum
  3.    Clearance
  4.    Working depth
 Discuss Question
Answer: Option A. -> Addendum
Question 417. When the screw in a mechanical screw jack rotates, the load kept on the top of it moves
  1.    Axially upwards
  2.    Axially downwards
  3.    Axially upwards or downwards
  4.    None of these
 Discuss Question
Answer: Option C. -> Axially upwards or downwards
Question 418. In a steam engine, the piston rod is usually connected to the cross-head by means of a
  1.    Knuckle joint
  2.    Cotter joint
  3.    Oldham coupling
  4.    Universal joint
 Discuss Question
Answer: Option B. -> Cotter joint
Question 419. If a material fails below its yield point, failure would be due to
  1.    Straining
  2.    Fatigue
  3.    Creep
  4.    Sudden loading
 Discuss Question
Answer: Option B. -> Fatigue
Question 420. A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called
  1.    Hydrostatic lubricated bearing
  2.    Hydrodynamic lubricated bearing
  3.    Boundary lubricated bearing
  4.    Zero film bearing
 Discuss Question
Answer: Option A. -> Hydrostatic lubricated bearing

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