Which of the following is not a variable area flow meter ?

Related Mcqs:

1. Which of the following is not a differential pressure flow meter ?

   A. Rotameter
   B. Flow nozzle
   C. Orificemeter
   D. Venturimeter

2. The experimental response of the controlled variable y(t) for a step change of magnitude ‘P’ in the manipulated variable x(t) is shown below: The appropriate transfer function of the process is_________________?

   A. (Q/P) e-(Q/R)S/(TdS + 1)
   B. (Q/R) e-TdS/(Q/P) (S + 1)
   C. (Q/P) e-TdS/(Q/R) (S + 1)
   D. (Q/R) e-(P/Q)S/(TdS + 1)

3. In an exothermic chemical reactor, the manipulated variable is the flow rate of_______________?

   A. Coolant
   B. Reactants
   C. Product
   D. None of these

4. In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the ______________ variable?

   A. Load
   B. Controlled
   C. Manipulated
   D. None of these

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

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

6. 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

7. 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)

8. pH meter has ____________________?

   A. One cell
   B. Two cells
   C. Three cells
   D. No cell

9. In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the ____________ variable?

   A. Load
   B. Manipulated
   C. Controlled
   D. None of these

10. In a closed loop system, the process to be controlled is an integrating process with transfer function 1/2s. The controller proposed to be used in an integral controller with transfer function 1/T1s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit__________________?

    A. Overdamped response
    B. Underdamped response
    C. Undamped response
    D. Unstable response