1
GATE PI 2017
MCQ (Single Correct Answer)
+1
-0.3
Turning, drilling, boring and milling are commonly used machining operations. Among these, the operation (s) performed by a single point cutting tool is (are)
A
turning only
B
drilling and milling only
C
turning and boring only
D
boring only
2
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
A schematic diagram of peripheral milling is shown in the Figure.

If $$t$$ is the depth of cut and $$d$$ is the diameter of the milling cutter, then the length of approach $$\left( {la} \right)$$ is expressed as

A
$$\sqrt {d\left( {t - d} \right)}$$
B
$$\sqrt {d\left( {d - t} \right)}$$
C
$$\sqrt {t\left( {d - t} \right)}$$
D
$$\sqrt {t\left( {t - d} \right)}$$
3
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
The preparatory and miscellaneous codes used in $$CNC$$ part programming and the functions are given in the Table

The correct combination of code and the respective function is

A
$$P - 4,\,\,Q - 1,\,\,R - 3,\,\,S - 2$$
B
$$P - 4,\,\,Q - 1,\,\,R - 2,\,\,S - 3$$
C
$$P - 1,\,\,Q - 4,\,\,R - 3,\,\,S - 2$$
D
$$P - 2,\,\,Q - 1,\,\,R - 3,\,\,S - 4$$
4
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
In a numerical control $$(NC)$$ machine positioning system, the measures of precision are expressed by considering a single axis as shown in the Figure.

If $$\sigma$$ is standard deviation of the error distribution, the $$L$$, $$M$$ and $$N$$ are

A
$$L=$$ Accuracy, $$M=$$ Repeatability , $$N=$$ Control resolution
B
$$L=$$ Repeatability, $$M=$$ Accuracy, $$N=$$ Control resolution
C
$$L=$$ Control resolution, $$M=$$ Repeatability , $$N=$$ Accuracy
D
$$L=$$ Accuracy, $$M=$$ Control resolution , $$N=$$ Repeatability
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