Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an ________________?

Related Mcqs:

1. Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a ________________?

   A. Magnetic flowmeter
   B. Pitot tube
   C. Flow nozzle type flowmeter
   D. Turbine flowmeter

2. Water is entering a storage tank at a temperature T0 and flow rate Q0 and leaving at a flow rate Q and temperature T. There are negligible heat losses in the tank. The area of cross-section of the tank is A0. The model that describes the dynamic variation of temperature of water in the tank with time is given as________________?

   A. Q0(T0 – T) = Ac . h (dT/dt)
   B. Q0T0 – QT = Ac . h (dT/dt)
   C. Q(T0 – T) = Ac . h (dT/dt)
   D. Q(T0 – T) = Ac . (dTH/dt)

3. Measurement of pressure in ammonia reactor is done by __________________?

   A. Bourdon gauge
   B. U-tube manometer
   C. Inclined tube manometer
   D. Pirani gauge

4. Temperature measurement by optical pyrometer is done above ____________ point, which is 1063°C ?

   A. Antimony
   B. Gold
   C. Silver
   D. Nickel

5. Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a __________________?

   A. Thermocouple
   B. Resistance thermometer
   C. Mercury in glass thermometer
   D. Vapor pressure thermometer

6. Measurement of sub-zero Celsius temperature in industry is done most commonly by __________________?

   A. Thermocouples
   B. Resistance thermometers
   C. Gas thermometers
   D. Bi-metallic thermometers

7. Continuous measurement of moisture in paper is done by_______________?

   A. Sling psychrometer
   B. Hair-hygrometer
   C. Weighing
   D. High resistance Wheatstone bridge circuit

8. Continuous measurement of specific gravity of a liquid is done by __________________?

   A. Hydrometer
   B. Contact-type electric indicators
   C. Displacement meter
   D. Both A. and C.

9. Continuous measurement of moisture content of paper in paper industry is done by measuring the_________________?

   A. Thermal conductivity through the paper
   B. Electrical resistance through the paper
   C. Magnetic susceptibility
   D. None of these

10. Which of the following fluid flow measuring devices can measure the largest flow rate ?

    A. V-notch
    B. Rotameter
    C. Orificemeter
    D. Weir