Government Polytechnic 2010 Diploma in Hospital Management Metrology & Instrumentation - Question Paper

Q.1 (a) State the elements of measuring systems & also factors affecting every of
the system.
07
(b) Draw a neat sketch of "dial- indicator" & discuss its working in brief.
Also list the precautions to be taken while using dial-indicator.
07
Q.2
(a) discuss with neat sketch working of vernier bevel protector & tag its
parts.
07
(b) discuss the measurement of straight ness of straight edge with the help
of wedge method.
07
OR
(b) describe the subsequent terms (any three)
1. CLA value 2. Roughness 3. Waviness 4. RMS value 5. Mean line.
07
Q.3
(a) Write short note on subsequent.
1. Gear tooth vernier caliper
2. Important elements of spur gear with neat sketch.
07
(b) Attempt any (two)
1. Classify the gauges
2. Gauge tolerance & wear allowance
3. discuss "Taylor's principle' for limit gauge design.
07
OR
Q.3 (a) List the methods to measure the effctive diameter of the screw thread.
discuss "three wire method" of measuring effective diameter of screw
thread.
07
(b) Draw a neat sketch of Parkinson's gear tester & discuss its working. List
the errors which can be obtained out by the method.
07
Q.4
(a) discuss the working principle and advantages & disadvantages of
capacitance kind & inductance kind transducer.
07
(b) State the principle of thermo electric emf & list 3 common
combinations of metals used in thermo couple along with its
temperature range.
07
OR
Q. four (a) discuss working principle of optical pyrometer with the help of diagram
also state advantages & applications of these pyrometers.
07
(b) Name various kinds of elastic gauges used for pressure measurement &
discuss any one.
Q.5
(a) discuss the working principle of hot wire anemometer with sketch &
provide its applications.
07
(b) Classify automatic control system. Also discuss on-off control system
or proportional system.
07
OR
Q.5 (a) Why it is necessary to calibrate a measuring instrument? Write standard
procedure to calibrate micrometer.
07
(b) Write short notes on any three.
1. Rota meter
2. Hydraulic control system
3. Open loop control system
4. Venturimeter.

Earning:   Approval pending.