11. The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to
12. Compositional analysis of __________ is done using mass spectrometer.
13. The inverse Laplace transform of the function $${\text{f}}\left( {\text{s}} \right) = \frac{1}{{{\text{S}}\left( {{\text{S}} + 1} \right)}}$$ is
14. Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C.
15. Measurement of pressure in ammonia reactor is done by
16. With increase in temperature, the electrical conductivity of the platinum used in the resistance thermometer
17. Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by
18. An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a
19. The open loop transfer function of a control system is $$\frac{{{\text{KR}}}}{{1 + {\text{TS}}}}.$$ This represents
20. A negative gain margin expressed in decibels means a/an __________ system.
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