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MCQs

Total Questions : 936 | Page 37 of 94 pages
Question 361.

 
A process used for making thin phosphate coating on steel is called parkerising.


  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


Question 362.

 
A large electrode is used in un-shielded arc welding.


  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


Question 363.


Lap joints are employed on plates having thickness


  1.    less than 3 mm
  2.    5 to 10 mm
  3.    12.5 mm
  4.    above 25 mm
 Discuss Question
Answer: Option A. -> less than 3 mm


Question 364.
When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by
  1.    washing it with water
  2.    rubbing on wood
  3.    washing it with dilute acid
  4.    using file card
 Discuss Question
Answer: Option D. -> using file card


Question 365.
 
In back-hand welding, the angle between the welding rod and the work is __________ as compared to fore-hand welding.
  1.    same
  2.    less
  3.    more
 Discuss Question
Answer: Option A. -> same


Question 366.

During cold working process


  1.    grain structure is distorted
  2.    strength and hardness of metal increases
  3.    close dimensional tolerance can be maintained
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above


Question 367.
 
The maximum flame temperature occurs
  1.    at the outer cone
  2.    at the inner cone
  3.    between the outer and inner cone
  4.    at the torch tip
 Discuss Question
Answer: Option B. -> at the inner cone


Question 368.

The advantage of thermit welding is that


  1.    all parts of the weld section are molten at the same time
  2.    weld cools almost uniformly
  3.    results in a minimum problem with internal residual stresses
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above


Question 369.

A gimlet is a __________ tool.


  1.    boring
  2.    marking
 Discuss Question
Answer: Option A. -> boring


Question 370.

Slick is used for repairing and finishing the mould.



  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


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