Multiple Choice
Which of the following defect in castings is caused by the molten metal?
A) Scab
B) Swell
C) Shrinkage
D) Blowholes
E) All of the above
Correct Answer:

Verified
Correct Answer:
Verified
Q17: Unequal lengths of lips of a twist
Q18: Accuracy is<br>A)The repeatability of a measuring process<br>B)Error
Q19: For resistance welding<br>A)Voltage is low and current
Q20: In a Brinell hardness test the hardness
Q21: Presence of oxygen in copper<br>A)gives it yellow
Q23: Aluminium gears are generally used in<br>A)Compressors<br>B)Speed reducers<br>C)Instruments<br>D)Worm
Q24: The disadvantage of die casting process is<br>A)Cost
Q25: The limitation of a pneumatically operated automatic
Q26: In EDM, the tool and work piece
Q27: The gold point temperature is<br>A)569°C<br>B)863°C<br>C)100°C<br>D)1000°C<br>E)1063°C