1
GATE PI 2017
Numerical
+1
-0
A steel wire of $$2$$ $$mm$$ diameter is to be drawn from a wire of $$5mm$$ diameter. The value of true strain developed is _____________ (up to three decimal places)
Your input ____
2
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
A metallic strip having a thickness of $$12$$ $$mm$$ is to be rolled using two steel rolls, each of $$800$$ $$mm$$ diameter. It is assumed that there is no change in width of the strip during rolling. In order to achieve $$10\% $$ reduction in cross-sectional area of the strip after rolling, the angle subtended (in degrees) by the deformation zone at the center of the roll is
A
$$1.84$$
B
$$3.14$$
C
$$6.84$$
D
$$8.23$$
3
GATE PI 2017
MCQ (Single Correct Answer)
+1
-0.3
Accuracy of a measuring instrument is expressed as
A
true value - measured value
B
measured value - true value
C
$$1 - \left| {{{true\,\,value\,\, - \,\,measured\,\,value} \over {true\,\,value}}} \right|$$
D
$$1 + \left| {{{true\,\,value\,\, - \,\,measured\,\,value} \over {true\,\,value}}} \right|$$
4
GATE PI 2017
MCQ (Single Correct Answer)
+1
-0.3
A machined surface with standard symbols indicating the surface texture is shown in the Figure. (ALL dimensions in the Figure are in micrometer). GATE PI 2017 Metrology - Metrology and Inspection Question 29 English

The waviness height (in micrometer) of the surface is

A
$$1$$
B
$$50$$
C
$$60$$
D
$$120$$
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