ECAT Pre Engineering Physics Chapter 6 online mcq test with answers for chapter 6 (Fluid Dynamics)

Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics Online Test

Sr. #	Questions	Answers Choice
1	If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term	P 1/2 fv<sup>2</sup> pgh none of them
2	Where the streamlines are very far apart from each other, the pressure will be	low zero high all of them
3	Where the streamlines are very close to each other, the pressure will be	low zero high all of them
4	According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be	low zero high all of them
5	The velocity gained by the fluid in falling through the distance (h_{1 - h}_{2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the}	orifices efflux fluid none of them
6	In deriving the Bernoulli's equation, we assume that the fluid is	incompressible no viscous flows in a steady manner all of them
7	Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid	speed height none of them both of them
8	The pressure will change in the pipe, as the fluid moves through that pipe of varying	cross-section height none of them both of them
9	The mass of fluid passing through any cross-section per unit time is called	electric flux magnetic flux mass flux none of them
10	Rate of flow can be expressed in	litre/sec litre-sec sec/litre sec/litre-m
11	The un-steady streamline flow is called	laminar flow turbulent flow both of them none of them
12	The smooth or steady streamline flow is known as	laminar flow turbulent flow both of them none of them
13	A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms^-1then velocity at second cross-section is	5000 cms<sup>-1</sup> 500 cms<sup>-1</sup> 50 cms<sup>-1</sup> 0.5 cm/s
14	The equation of continuity is	A<sub>1</sub>A<sub>2 = V</sub><sub>1</sub>V<sub>2</sub> A<sub>1/</sub><sub>V</sub><sub>1 =</sub>A<sub>2/</sub>V<sub>2</sub> <sub>V</sub><sub>1/</sub>A<sub>1=</sub>V<sub>2/</sub>A<sub>2</sub> A<sub>1</sub><sub>V</sub><sub>1 =</sub>A<sub>2</sub>V<sub>2</sub>
15	Above a certain velocity of a fluid is called	turbulent flow steady flow either of them both of them

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