1
GATE ME 2015 Set 1
Numerical
+1
-0
Under certain cutting conditions, doubling the cutting speed reduces the tool life to $${\left( {{1 \over {16}}} \right)^{th}}$$ of the original. Taylor’s tool life index $$(n)$$ for this tool workpiece combination will be ______________
Your input ____
2
GATE ME 2015 Set 1
Numerical
+2
-0
An orthogonal turning operation is carried out under the following conditions; rake angle $$ = {5^ \circ },$$ spindle rotational speed $$=400$$ $$rpm,$$ axial feed $$=0.4$$ $$m/min$$ and radial depth of $$cut = 5mm$$. The chip thickness, $${t_c},$$ is found to be $$3mm.$$ The shear angle (in degrees) in this turning process is ________________
Your input ____
3
GATE ME 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Holes of diameter $${25.0^{\matrix{ { + 0.040} \cr { + 0.020} \cr } }}\,\,mm$$ are assembled interchangeably with the pins of diameter $${25.0^{\matrix{ { + 0.005} \cr { + 0.008} \cr } }}\,\,mm.$$

The minimum clearance in the assembly will be

A
$$0.048$$ $$mm$$
B
$$0.015$$ $$mm$$
C
$$0.005$$ $$mm$$
D
$$0.008$$ $$mm$$
4
GATE ME 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
The function of interpolator in a $$CNC$$ machine controller is to
A
control spindle speed
B
coordinate feed rates of axes
C
control tool rapid approach speed
D
perform Miscellaneous $$(M)$$ functions (tool change, coolant control etc.)
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