1
GATE ME 2010
+2
-0.6
A shaft has a dimension $$\phi$$ $${35^{\matrix{ { - 0.009} \cr { - 0.025} \cr } }}$$. The respective values of fundamental deviation and tolerance are
A
$$- 0.025,\,\, \pm 0.008$$
B
$$- 0.025,\,\, - 0.008$$
C
$$- 0.009,\,\, \pm 0.008$$
D
$$- 0.009,\,\,0.016$$
2
GATE ME 2010
+2
-0.6
A taper hole is inspected using a $$CMM,$$ with a probe of $$2mm$$ diameter. At a height, $$Z=10mm$$ from the bottom, $$5$$ points are touched and a diameter of circle (not compensated for probe size) is obtained as $$20mm.$$ similarly, a $$40mm$$ diameter is btained at a height $$Z=40mm.$$ The smaller diameter (in $$mm$$) of hole at $$Z=0$$ is
A
$$13.334$$
B
$$15.334$$
C
$$15.442$$
D
$$15.542$$
3
GATE ME 2009
+2
-0.6
What are the upper and lower limits of the shaft represented by $$60{f_8}$$?

Use the following data:
Diameter $$60$$ lies in the diameter step of $$50-80$$ $$mm$$
Fundamental tolerance unit, $$i,$$ in $$\mu m = 0.45\,\,{D^{1/3}} + 0.001D,$$
where $$D$$ is the representative size in $$mm;$$ Tolerance value for $${\rm I}T8 = 25i,$$ Fundamental deviation for $$'âfâ'$$ shaft $$= - 5.5{D^{0.41}}$$

A
Lower limit $$= 59.924mm,$$ Upper Limit $$= 59.970mm$$
B
Lower limit $$= 59.954mm,$$ Upper Limit $$= 60.000mm$$
C
Lower limit $$= 59.970mm,$$ Upper Limit $$= 60.016mm$$
D
Lower limit $$= 60.000mm,$$ Upper Limit $$= 60.046mm$$
4
GATE ME 2008
+2
-0.6
A displacement sensor (a dial indicator) measures the lateral displacement of a mandrel on the taper hole inside a drill spindle. The mandrel axis is an extension of the drill spindle taper hole axis and the protruding portion of the mandrel surface is perfectly cylindrical. Measurement are recorded as $${R_x} =$$ maximum deflection minus minimum deflection, corresponding to sensor position at $$X$$, over one rotation.

If $${R_p} = {R_Q} > 0,$$ which one of the following would be consistent with the observation?

A
The drill spindle rotational axis is coincident with the drill spindle taper hole axis
B
The drill spindle rotational axis intersects the drill spindle taper hole axis at point $$P$$
C
The drill spindle rotational axis is parallel to the drill spindle taper hole axis
D
The drill spindle rotational axis intersects the drill spindle taper hole axis at point $$Q$$
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