1
GATE PI 2011
+2
-0.6
Observation of a slip gauge on a flatness interferometer produced fringe counts numbering $$10$$ and $$14$$ for two readings. The second reading is taken by rotating the setup by $${180^ \circ }$$ Assume that both faces of the slip gauge are flat and the wavelength of the radiation is $$0.5086$$ $$\mu m.$$ The parallelism error (in $$\mu m.$$) between the two faces of the slip gauge is
A
$$0.2543$$
B
$$1.172$$
C
$$0.5086$$
D
$$0.800$$
2
GATE PI 2010
+2
-0.6
A small bore is designated as $$25H7.$$ The lower (minimum) and upper (maximum) limits of the bore are $$25.000mm$$ and $$25.021$$ respectively. When the bore is designated as $$25H8,$$ then the upper limit is $$25.033mm.$$ When the bore is designated as $$25H6,$$ then the upper limit of the bore in $$mm$$ is
A
$$25.001$$
B
$$25.005$$
C
$$25.009$$
D
$$25.013$$
3
GATE PI 2009
+2
-0.6
An autocollimator is used to
A
Measure small angular displacements on flat surfaces
B
Compare known and unknown dimensions
C
Measure the flatness error
D
Measure roundness error between centers
4
GATE PI 2009
+2
-0.6
Match the following
A
$$P - 4,\,\,Q - 3,\,\,R - 1,\,\,S - 2$$
B
$$P - 1,\,\,Q - 2,\,\,R - 3,\,\,S - 4$$
C
$$P - 1,\,\,Q - 4,\,\,R - 3,\,\,S - 2$$
D
$$P - 4,\,\,Q - 3,\,\,R - 2,\,\,S - 1$$
GATE PI Subjects
Engineering Mechanics
Theory of Machines
Machine Design
Fluid Mechanics
Thermodynamics
Casting
Joining of Materials
Metal Forming
Machine Tools and Machining
Metrology
Industrial Engineering
EXAM MAP
Medical
NEET