ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

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

Sr.#	Question	Answer
1	Viscosity is defined as	A. the friction between fluid and its container's walls B. the internal friction between two layers of fluid C. the resistance to flow a fluid experiences D. the extent to which outside factors effect the fluid's flow
2	The direction of the streamlines is the same as the direction of the	A. force B. torque C. velocity D. weight
3	Unit of viscosity is:	A. Kg m^-1sec^-1 B. N s m^-2 C. J s m^-3 D. All of these
4	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}	A. orifices B. efflux C. fluid D. none of them
5	Matter is made up of very tiny particles called	A. Atoms B. Molecules C. Ions D. None of these
6	The drag force acting on a spherical droplet of radius 10^-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10^-7m/sec. The units comes out to be:	A. 10^-16N B. 10^-14N C. 10^-12N D. 10^-10N
7	Internal friction of fluid is called	A. Surface tension B. Viscosity C. Resistance D. Cohesive force
8	The smooth or steady streamline flow is known as	A. laminar flow B. turbulent flow C. both of them D. none of them
9	When a fluid is in motion, its flow can be considered as	A. turbulent B. streamline C. either or them D. neither of them
10	Bernoulli's equation is applicable for	A. turbulent flow B. streamline flow C. both (a) and (b) D. all kinds of flows