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MCQs

Total Questions : 936 | Page 39 of 94 pages
Question 381.

A basic shaft is one whose


  1.    lower deviation is zero
  2.    upper deviation is zero
  3.    lower and upper deviations are zero
  4.    none of these
 Discuss Question
Answer: Option B. -> upper deviation is zero


Question 382.

The width of slot cut by a hacksaw blade is __________ the width of the blade.


  1.    equal to
  2.    less than
  3.    greater than
 Discuss Question
Answer: Option C. -> greater than


Question 383.

Thermit, used in thermit welding, is a mixture of


  1.    charcoal and iron oxide
  2.    charcoal and aluminium
  3.    iron oxide and aluminium
  4.    charcoal, iron oxide and aluminium
 Discuss Question
Answer: Option C. -> iron oxide and aluminium


Question 384.
 
In spot welding, the distance between the nearest edge of the plate and centre of weld should be equal to
  1.    d
  2.    1.5 d
  3.    3 d
  4.    6 d
 Discuss Question
Answer: Option B. -> 1.5 d


Question 385.
 
In fore-hand welding, the weld is made
  1.    from left to right
  2.    from right to left
  3.    first from left to right and then from right to left
  4.    either from left to right or from right to left
 Discuss Question
Answer: Option B. -> from right to left


Question 386.
The material which can be best cut with oxygen cutting process is
  1.    mild steel
  2.    brass
  3.    copper
  4.    aluminium
 Discuss Question
Answer: Option A. -> mild steel


Question 387.

 
In fore-hand welding, the angle between the welding rod and the work is kept as


  1.    `30^circ`-`40^circ`
  2.    `40^circ`-`50^circ`
  3.    `50^circ`-`60^circ`
  4.    `60^circ`-`70^circ`
 Discuss Question
Answer: Option A. -> `30^circ`-`40^circ`


Question 388.

 
When two metal
pieces of different thicknesses are to be welded by projection welding,
then the projections should be made on __________ metal piece.


  1.    thinner
  2.    thicker
 Discuss Question
Answer: Option B. -> thicker


Question 389.


The minimum size of a bloom is


  1.    5 cm x 5 cm
  2.    10 cm x 10 cm
  3.    15 cm x 15 cm
  4.    20 cm x 20 cm
 Discuss Question
Answer: Option C. -> 15 cm x 15 cm


Question 390.

 
The binder commonly used in making oil sand, is


  1.    clay-type binder
  2.    organic-type binder
  3.    inorganic-type binder
  4.    any one of these
 Discuss Question
Answer: Option B. -> organic-type binder


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