ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics MCQ`s Test

Sr.#	Question	Answer
1	The blood pressure of a person	A. decrease with age B. increase with age C. has no effect with age D. none of them
2	Internal friction of fluid is called	A. Surface tension B. Viscosity C. Resistance D. Cohesive force
3	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	A. P B. 1/2 fv² C. pgh D. none of them
4	A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is	A. 50 m/s B. 20 m/s C. 40 cm/s D. 5 cm/s
5	Bernoulli's equation is based upon law of conversation of	A. mass B. momentum C. Energy D. None
6	According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be	A. low B. zero C. high D. all of them
7	Unit of viscosity is:	A. Kg m^-1sec^-1 B. N s m^-2 C. J s m^-3 D. All of these
8	If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity	A. v/A = constant B. A/v = constant C. Av = constant D. None
9	When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:	A. Starts increasing B. Starts decreasing C. Becomes constant D. Is called escape velocity
10	When a fluid is in motion, its flow can be considered as	A. turbulent B. streamline C. either or them D. neither of them