1
GATE PI 2015
Numerical
+2
-0
During the measurement of internal taper of a part using standard balls of diameter $$15$$ $$mm$$ and $$20$$ $$mm$$, the large ball is found to protrude by $$5$$ $$mm$$ $$\left( {{h_1}} \right)$$ and the top of small ball is found to be $$35$$ $$mm$$ $$\left( {{h_2}} \right)$$ below the top face of the gauge. The taper angle, in degree, is ________________. GATE PI 2015 Metrology - Metrology and Inspection Question 6 English
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2
GATE PI 2015
Numerical
+2
-0
A surface is prepared specially for an application with the profile as shown in the figure. GATE PI 2015 Metrology - Metrology and Inspection Question 5 English

The theoretical $${R_a}$$ value for this surface, in $$\mu m,$$ is _______________.

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3
GATE PI 2014
MCQ (Single Correct Answer)
+2
-0.6
The alignment test ''Spindle square with base plate'' is applied to the radial drilling machine. A dial indicator is fixed to the cylindrical spindle and the spindle is rotated to make the indicator touch the base plate at different points. The test inspects whether the GATE PI 2014 Metrology - Metrology and Inspection Question 4 English
A
Spindle vertical feed axis is perpendicular to the base plate
B
Axis of symmetry of the cylindrical spindle is perpendicular to the base plate.
C
Axis of symmetry, the rotational axis and the vertical feed axis of the spindle are all coincident
D
Spindle rotational axis is perpendicular to the base plate.
4
GATE PI 2013
MCQ (Single Correct Answer)
+2
-0.6
Cylindrical pins of $${25^{\matrix{ { + 0.020} \cr { + 0.010} \cr } }}\,\,mm$$ diameter are electroplated in a shop. Thickness of the plating is $$30 \pm 0.2$$ micron. Neglecting gage tolerances, the size of the $$GO$$ gage in $$mm$$ to inspect the plated components is
A
$$25.042$$
B
$$25.052$$
C
$$25.074$$
D
$$25.084$$
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