Liquid flow rate in an open channel cannot be measured by a/an __________________?

Related Mcqs:

1. Liquid flow rate in a small channel is best measured by a/an____________________?

   A. Weir
   B. Pitot tube
   C. Vane meter
   D. Venturimeter

2. Specific gravity of a liquid cannot be measured by a/an __________________?

   A. Anemometer
   B. Specific gravity bottle
   C. Pycnometer
   D. Hydrometer

3. Liquid discharge from a tank or reservoir cannot be measured by __________________?

   A. Orificemeter
   B. Weirs
   C. Mouthpieces
   D. Notches

4. 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

5. Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is __________________?

   A. Water
   B. Carbon tetrachloride
   C. Paraffin
   D. Ethylene glycol

6. 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)

7. 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

8. Flow rate of a river is measured by a/an____________________?

   A. Pitot tube
   B. Vane meter
   C. Kennison nozzle
   D. Open weir

9. Flow rate of sludge is not measured by a/an_________________?

   A. Orificemeter
   B. Open weir
   C. Kennison nozzle
   D. Both B. & C.

10. Temperature of _____________ cannot be measured by an optical or radiation pyrometer?

    A. Hot blast (air) from stoves
    B. Molten slag flowing out of blast furnace
    C. Combustion space in boilers
    D. Rotary limestone calcination kiln