The Limitation of a Pneumatically Operated Automatic Control System

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

Q24: The disadvantage of die casting process is<br>A)Cost

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

Q30: During continuous chip formation the maximum heat