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	An object moving through a fluid experiences a retarding force called a	A. frictional force B. terminal force C. opposing force D. drag force
2	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
3	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
4	The terminal velocity of a small size spherical body of radius R moving in a fluid varies as	A. R B. R² C. 1/R D. (1/R)²
5	Where the streamlines are very far apart from each other, the pressure will be	A. low B. zero C. high D. all of them
6	Internal friction of fluid is called	A. Surface tension B. Viscosity C. Resistance D. Cohesive force
7	The term Brownian movement refers to	A. irregular motions of small particles suspended in a fluid B. convection currents in a liquid or gas C. convection currents in a gas but not in a liquid D. the stretching of a body beyond its elastic limit
8	Above a certain velocity of a fluid is called	A. turbulent flow B. steady flow C. either of them D. both of them
9	Matter is made up of very tiny particles called	A. Atoms B. Molecules C. Ions D. None of these
10	The fluid is incompressible, if itsdensity is	A. zero B. constant C. very high D. very small