Related Questions

The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
A Equal to
B Less than
C More than
D None of these
The machanism involved in the removal of metal in drilling operation is by
A Compression
B Extrusion
C Shearing
D Both A & C
In lapping operation, the amount of metal removed is
A 0.005 to 0.01 mm
B 0.01 to 0.1 mm
C 0.05 to 0.1 mm
D 0.5 to 1 mm
The cutting speed for counter-boring should be _________ that of drilling operation.
A Equal to
B Less than
C Greater than
D None of these
The main purpose of a boring operation, as compared to drilling, is to
A Drill a hole
B Finish the drilled hole
C Correct the hole
D Enlarge the existing hole
The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as
A Drawing
B Squeezing
C Coining
D Planishing
If 1/2 of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after four strokes ?
A 15/16
B 7/8
C 1/4
D 1/8
The average of five numbers is 25. After one if the numbers is removed, the average of the remaining is 31. What number has been removed?
A 7
B 6
C 4
D 1
If 1/2 of the air in a tank is removed with each stroke of a vacuum pump,what fraction of the original amount of air has been removed after 4 strokes?
A 15/16
B 7/8
C 1/4
D 1/8
The average of six numbers is 7 . If two of the six numbers are removed , the average of the remaining numbers is 8. What is the sum of the two numbers which were removed?
A 15
B 13
C 11
D 10

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