1
GATE PI 1994
True or False
+1
-0
The composition of an oxy-acetylene flame for cutting of steel contain more oxygen.
A
TRUE
B
FALSE
2
GATE PI 1994
MCQ (Single Correct Answer)
+1
-0.3
Machinability of steels is improved by the addition of
A
Sulphur
B
Silicon
C
Phosporous
D
all of the above
3
GATE PI 1994
MCQ (Single Correct Answer)
+1
-0.3
In metal cutting $$BUE$$ formation results in
A
improvement in surface finish
B
reduction in cutting force
C
deterioration of surface finish
D
improvement in tool life
4
GATE PI 1994
MCQ (Single Correct Answer)
+1
-0.3
Only negative rake angles are used with the following tool material
A
$$HSS$$
B
Carbon tool steels
C
Carbides
D
Diamonds
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