____________ are analysed using a Polarograph?

Related Mcqs:

1. Polarograph is meant for the analysis of __________________?

   A. Gaseous mixture
   B. Miscible liquids
   C. Solids
   D. Isotopes

2. Stability of a control system containing a transportation lag can be best analysed by_______________?

   A. Routh test
   B. Root locus methods
   C. Frequency response methods
   D. None of these

3. Very low pressure is expressed in microns (μ), which is equal to ____________ mm of Hg column (absolute) at 0°C?

   A. 0.0001
   B. 0.001
   C. 0.01
   D. 0.1

4. Platinum resistance thermometer can be used upto antimony point which is ____________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure?

   A. 961.93
   B. 630.74
   C. 1064.43
   D. 1261.93

5. Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?

   A. No change
   B. Decrease
   C. Increase
   D. Exponential decrease

6. ____________ stability method uses open loop transfer function?

   A. Nyquist
   B. Mikhailov
   C. Ruth
   D. None of these

7. Bode stability method uses ____________ loop transfer function?

   A. Open
   B. Closed
   C. Either A. or B.
   D. Neither A. nor B.

8. Thermistors are used in ____________ devices?

   A. Voltage measuring
   B. Temperature measuring
   C. Temperature compensating
   D. Both B. & C.

9. The ____________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature ?

   A. Pressure
   B. Volume
   C. Viscosity
   D. All A., B. and C.

10. A negative gain margin expressed in decibels means a/an ____________ system?

    A. Stable
    B. Unstable
    C. Critically damped
    D. None of these