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Total Questions : 936 | Page 44 of 94 pages
Question 431.

.In a cold chamber die casting machine, only non-ferrous alloys with __________ are casted.


  1.    low melting temperature
  2.    high melting temperature
 Discuss Question
Answer: Option B. -> high melting temperature


Question 432.


A mortise gauge is a


  1.    striking tool
  2.    planing tool
  3.    boring tool
  4.    marking tool
 Discuss Question
Answer: Option D. -> marking tool


Question 433.

.When the weld is made from left to right, it is known as back-hand welding.


  1.    Agree
  2.    Disagree
 Discuss Question
Answer: Option A. -> Agree


Question 434.

 
In order to check the clearance between two mating surfaces, a __________ gauge should be used.


  1.    ring
  2.    plug
  3.    feeler
 Discuss Question
Answer: Option C. -> feeler


Question 435.

The current in electric resistance welding can be regulated by


  1.    varying the input supply
  2.    changing the primary turns of the transformer
  3.    changing the secondary turns of the transformer
  4.    any one of the above
 Discuss Question
Answer: Option B. -> changing the primary turns of the transformer


Question 436.
 
Scab is a casting defect which occurs as sand patches on the upper surface of a casting.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True


Question 437.


The cutting edge of a chisel should be


  1.    hardened
  2.    tempered
  3.    hardened and tempered
  4.    case hardened
 Discuss Question
Answer: Option C. -> hardened and tempered


Question 438.


Most of the oxy-acetylene welding is done with


  1.    neutral flame
  2.    oxidising flame
  3.    carburising flame
  4.    all of these
 Discuss Question
Answer: Option A. -> neutral flame


Question 439.

 
For welding plates of thickness more than 12.5 mm, its edges


  1.    do not require bevelling
  2.    should be bevelled to a single-V or U-groove
  3.    should have a double-V or U-groove on one side
  4.    should have a double-V or U-groove on both sides
 Discuss Question
Answer: Option D. -> should have a double-V or U-groove on both sides


Question 440.


In electric resistance welding, voltage required for heating is


  1.    1 to 5 volts
  2.    6 to 10 volts
  3.    11 to 20 volts
  4.    50 to 100 volts
 Discuss Question
Answer: Option B. -> 6 to 10 volts


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