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 2014 Set 1
Numerical
+1
-0
If the Taylor's tool life exponent $$n$$ is $$0.2,$$ and the tool changing time is $$1.5$$ $$min,$$ then the tool life (in min) for maximum production rate is ____________
Your input ____
3
GATE ME 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
The main cutting force acting on a tool during the turning (orthogonal cutting) operation of a metal is $$400N.$$ The turning was performed using $$2mm$$ depth of cut and $$0.1mm/rev$$ feed rate. The specific cutting pressure (in $$N/m{m^2}$$ is
A
$$1000$$
B
$$2000$$
C
$$3000$$
D
$$4000$$
4
GATE ME 2014 Set 4
MCQ (Single Correct Answer)
+1
-0.3
Better surface finish is obtained with a large rake angle because
A
the area of shear plane decreases resulting in the decrease in shear force and cutting force
B
the tool becomes thinner and the cutting force is reduced
C
less heat is accumulated in the cutting zone
D
the friction between the chip and the tool is less
GATE ME Subjects
Turbo Machinery
EXAM MAP