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Total Questions : 936 | Page 41 of 94 pages
Question 401.

 
According to Indian standards, the total number of tolerance grades are


  1.    8
  2.    12
  3.    18
  4.    20
 Discuss Question
Answer: Option C. -> 18


Question 402.


The torch used for oxygen cutting is same as for oxy-acetylene welding.


  1.    Yes
  2.    No
 Discuss Question
Answer: Option B. -> No


Question 403.

 
If neutral flame
is used in oxy-acetylene welding, both oxygen and acetylene cylinders
of the same capacity will be emptied at the same time.


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


Question 404.

 
Which of the following material can be used for making patterns ?


  1.    Aluminium
  2.    Wax
  3.    Lead
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these


Question 405.


The upsetting is a process of


  1.    increasing the cross-section of a bar
  2.    reducing the cross-section of a bar
  3.    joining the two surfaces of metal under pressure after heating
  4.    bending of a bar
 Discuss Question
Answer: Option A. -> increasing the cross-section of a bar


Question 406.

 
The welding set up is said to have straight polarity, when


  1.    work is connected to the positive terminal and the electrode holder to the negative terminal
  2.    work is connected to the negative terminal and the electrode holder to the positive terminal
  3.    work is connected to the positive terminal and the electrode holder is earthed
  4.    work is connected to the negative terminal and the electrode holder is earthed
 Discuss Question
Answer: Option A. -> work is connected to the positive terminal and the electrode holder to the negative terminal


Question 407.

 
The most preferred process for casting gas turbine blades is


  1.    die casting
  2.    shell moulding
  3.    investment moulding
  4.    sand casting
 Discuss Question
Answer: Option B. -> shell moulding


Question 408.

 
A moving mandrel is used in


  1.    wiredrawing
  2.    tube drawing
  3.    metal cutting
  4.    forging
 Discuss Question
Answer: Option B. -> tube drawing


Question 409.

 
In die casting, machining allowance is


  1.    small
  2.    large
  3.    very large
  4.    not provided
 Discuss Question
Answer: Option D. -> not provided


Question 410.

The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called


  1.    shearing
  2.    piercing
  3.    punching
  4.    blanking
 Discuss Question
Answer: Option B. -> piercing


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