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

Related Mcqs:

1. 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)

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

   A. Orifice meter
   B. Cipolletti weir
   C. Rectangular weir
   D. V-notch

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

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

4. Liquid argon level in a pressurised storage tank (at 3 kg/cm2) is measured by a/an ____________________?

   A. Gage glass
   B. External float gage
   C. Differential pressure gage
   D. None of these

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 flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop?

   A. Tank 1
   B. Tank 2
   C. Tank 3
   D. Tank 4

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. 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

9. Liquid levels in autoclaves are measured by ________________?

   A. Simple float
   B. Differential float type manometer
   C. Glass gauge
   D. None of these

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

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