1
GATE PI 2008
MCQ (Single Correct Answer)
+2
-0.6
Brittle materials are machined with tools having zero or negative rake angles because it
A
Results in lower cutting force
B
Improves surface finish
C
Provides adequate strength to cutting forces
D
Results in more accurate dimensions
2
GATE PI 2008
MCQ (Single Correct Answer)
+2
-0.6
During machining, the wear land $$(h)$$ has been plotted against machining time $$(T)$$ as given in the following figure. GATE PI 2008 Machine Tools and Machining - Metal Cutting Question 3 English

For a critical wear land of $$1.8mm,$$ the cutting tool life (in $$min$$) is

A
$$52.00$$
B
$$51.67$$
C
$$51.50$$
D
$$50.00$$
3
GATE PI 2008
MCQ (Single Correct Answer)
+2
-0.6
The quick return mechanism used in shaper has rocker arm drive of length $$200mm.$$ If the crank radius is $$50mm$$ and the offset between crank center and rocker arm pivot is $$20mm,$$ length of the stroke (in meters) is
A
$$0.5$$
B
$$1.0$$
C
$$1.5$$
D
$$2.0$$
4
GATE PI 2008
MCQ (Single Correct Answer)
+2
-0.6
Suppose point $$P1$$ in $$APT$$ (Automatically programmed Tool) programming is coded by statement
$$P1 = POINT/XSMALL,\,\,\,INTOF,\,\,\,LN1,\,\,CR1$$

The coded geometric situation without causing error is

A
GATE PI 2008 Machine Tools and Machining - Advance Machine Tools Question 12 English Option 1
B
GATE PI 2008 Machine Tools and Machining - Advance Machine Tools Question 12 English Option 2
C
GATE PI 2008 Machine Tools and Machining - Advance Machine Tools Question 12 English Option 3
D
GATE PI 2008 Machine Tools and Machining - Advance Machine Tools Question 12 English Option 4
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