16. Pick out the wrong statement. A. O2, NO and NO2 exhibit paramagnetic propert

Question

16. Pick out the wrong statement. A. O2, NO and NO2 exhibit paramagnetic properties as a result of unpaired electrons. B. CO2 is the strongest paramagnetic gas. C. Paramagnetic susceptibility of gases decreases with temperature. D. Paramagnetic susceptibility of gases permits the measurement of their concentration. 2 The __________ of a vapor pressure thermometer is a functioning element. A. pointer B. bourdon tube C. bulb D. none of these 3. A negative gain margin expressed in decibels means a/an __________ system. A. stable B. unstable C. critically damped D. none of these 4. Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an A. insulator B. conductor C. solid semi-conductor D. liquid semi-conductor 5. Flapper nozzle is used in a/an __________ controller. A. electronic B. hydraulic C. pneumatic D. none of these

Explanation / Answer

16. C. Paramagnetic susceptibility of gases decreases with temperature

2..C. bulb

3.B.unstable

4.C.solid semi-conductor

5.A.electronic

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