Multiple Choice
The disadvantage of die casting process is
A) Cost is less
B) Surface finish is poor
C) Heavy section can be easily cast
D) High production rates are not possible
E) Only certain non-ferrous alloys can be cast economically
Correct Answer:
Verified
Correct Answer:
Verified
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
Q22: Which of the following defect in castings
Q23: Aluminium gears are generally used in<br>A)Compressors<br>B)Speed reducers<br>C)Instruments<br>D)Worm
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
Q28: In electrical resistance welding when the current
Q29: The coolant generally used while machining with