Production Engineering

1
.Lathe bed is made of
A. mild steel
B. alloy steel
C. pig iron
D. chilled cast iron

2

The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)

A. VnT = C
B. VTn = C
C. Vn/T = C
D. V/Tn = C

3

Tumbler gears in lathe are used to

A. reduce the spindle speed
B. cut gears
C. give desired direction of movement to the lathe carriage
D. drill a workpiece

4
  A numerical method of identification of tool is known as tool signature.
A. Correct
B. Incorrect

5

The point angle of a drill, for drilling stainless steel, is

A. `90^circ`
B. `118^circ`
C. `135^circ`
D. `150^circ`