Rajasthan Technical Education Second Year Paper 2016 – Metrology

Rajasthan Technical Education Second Year Paper 2016 – Metrology

A plug gauge is used for measuring
(a) Cylinders
(b) Cylinderical holes
(c) Spherical holes
(d) Screw threads

Gear tooth vernier is used to measure
(a) Gear tooth profile
(b) Gear tooth thickness
(c) Pitch line thickness of gear tooth
(d) Module

The surface roughness on a drawing is represented
(a) by circles
(b) by squares
(c) by zig-zag lines
(d) by triangles

Profile of a gear tooth is to be checked, which one of the following devices would you choose ?
(a) Optical pyrometer
(b) Bench micrometer
(c) Sine bar
(d) Optical projector

Clinometer is an instrument concerned with
(a) Temperature measurement
(b) Flatness measurement
(c) Linear measurement
(d) Angular measurement

Environmental errors may be due to
(a) change in humidity
(b) change in pressure & temperature
(c) change in gravity and wind velocity
(d) any one of the above

The secondary exture or waviness, or macro-errors on surface, results due to
(a) Normal action of the tool in production process
(b) Vibration and non-uniformity of cutting process
(c) Flaws in materials
(d) Dominant direction of tool marks (lay)

What is the use (or function) of a feeler gauge ?
(a) To check screw pitch
(b) To check surface roughness
(c) To check thickness of clearance
(d) To check radius

In limit and fits, the term älloance”usually refers to
(a) Difference between maximum size and minmum size of the shaft
(b) Difference between maximum and minmum size of a hole
(c) Maximum positive clearance between shaft and hole
(d) None of the above

ON a triple start screw thread
(a) lead = pitch
(b) lead = 3 x pitch
(c) lead = Pitch/2
(d) lead = pitch/3

Bevel protractor is used for
(a) Angular measurement
(b) Linear measurement
(c) Height measurement
(d) Flatness measurement

Tomlinson Recorder is used to measure surface
(a) Flatness
(b) Finish
(c) Curvature
(d) Flaws

The maximum amount by which the results differs from the true value is called
(a) correction
(b) deviation
(c) precision
(d) error

A comparator for its working depends on
(a) Accurately calibrated scale
(b) Comparison with standard such as slip gauges etc.
(c) Accurate micrometer
(d) None of the above