Bernoulli’s equation is obtained by applying the law of conservation of ________________?

Related Mcqs:

1. The equation of continuity is obtained by applying in the law of conservation of_____________?

   A. Mass
   B. Energy
   C. Momentum
   D. All

2. A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 in height further, find the magnitude of the force. Consider g = 10m/s 2

   A. 22N
   B. 16N
   C. 20N
   D. 4N

   Submitted by: Huzaifa Naseer

3. Bernoulli’s equation is applicable for_________________?

   A. Laminar flow
   B. Turbulent flow
   C. Both laminar and turbulent flow
   D. None of these

4. An alternating current is represented by the equation I = I∫sinπt which of the following equation represents an alternating current of frequency and amplitude twice that of the above current ?

   A. I = 2I∫Sin(πt/2)
   B. I = 2I∫Sin(2πt)
   C. I = 2ISinπt
   D. I = I∫sin(2πt)

5. Which law of motion is also called law of inertia ?

   A. 1st law
   B. 2nd law
   C. 3rd law
   D. all 1st, 2nd and 3rd laws

6. According to equation of continuity A1V1 = A2V2 = constant. The constant is equal to_______________?

   A. Flow rate
   B. Volume of fluid
   C. Mass of fluid
   D. The density of the fluid

7. A three-dimensional image is obtained by________________?

   A. Electron microscope
   B. Scanning electron microscope
   C. Magnetic imaging
   D. None of the above

8. The simplest type of rectification known as half wave rectification is obtained by____________________?

   A. using a transistor
   B. suppressing the harmonics in A.C voltage
   C. suppressing half wave of A.C supply by using diode
   D. using a Coolidge tube

9. In full wave rectification the output D.C. voltage across the load is obtained for_____________?

   A. The positive half cycle of input A.C.
   B. The negative half cycle of input A.C.
   C. The complete cycle of input A.C.
   D. All of the above.

10. In half-wave rectification the output D.C. voltages is obtained across the load for_______________?

    A. The negative half cycle of A.C.
    B. The positive half cycle of A.C.
    C. The positive and negative half cycles
    D. Either positive or negative half of A.C.