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	When a fluid is in motion, its flow can be considered as	A. turbulent B. streamline C. either or them D. neither of them
2	The smooth or steady streamline flow is known as	A. laminar flow B. turbulent flow C. both of them D. none of them
3	What are the SI base units of the coefficient of viscosity	A. Kg m s^-2 B. kgm² s^-2 C. Kg m s^-1 D. kg m^-1s^-1
4	The equation of continuity A₁V₁= A₂V₂is for the flow of	A. an ideal fluid B. an incompressible fluid C. a non visconcous fluid D. all of the above
5	If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm²will be	A. 1 cm B. 2 cm C. 8 cm D. None
6	The resistance offered by a fluid to a solid moving inside it is called:	A. Drag force B. Surface force C. Viscosity D. None of these
7	When weight of an object falling freely becomes equal to the drag force, then the body will move with	A. increasing speed B. decreasing speed C. constant speed D. none of them
8	The pressure will be low where the speed of the fluid is	A. Zero B. High C. Low D. Constant
9	Viscosity of water is ______ that of air but ___ that of plasma.	A. More, more B. Less, more C. Less, less D. More, less
10	The law of conservation of energy gives us	A. equation of continuity B. Bernoulli's theorem C. both of them D. none of them