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	According to the Bernoulli's theorem the pressure velocity are	A. equal to each other B. proportional to each other C. inversely proportional to each other D. none of them
2	During the steady flow, different streamlines	A. cannot across each other B. can across each other C. either of them D. neither of them
3	0.10 cm can be written as:	A. 1.0 x 10^-2m B. 1.0 x 10^-3cm C. 1.0 x 10^-4cm D. 1. x 10^-4m
4	Stock's law holds for:	A. Motion through free space B. Motion through viscous medium C. Bodies of all shapes D. None of these
5	At high speed, fluid friction _____ and fuel consumption ___,:	A. Increases, decreases B. Increases, increases C. Decreases, increases D. None of these
6	The terminal velocity of water droplet of radius 1 x 10^-4m and desity 1000 kg m^-3descending through air of viscosity 19 x 10^-6kg. m^-1s^-1is	A. 2.5 ms^-1 B. 3.2 ms^-1 C. 4.3 ms^-1 D. 1.1 ms^-1
7	A body is floating in a liquid. The up thrust on the body is	A. Equal to weight of liquid displaced B. Zero C. Less than the weight of liquid displaced D. Weight of body-weight of liquid displaced
8	The analysis of fluid motion becomes simplified by using	A. law of conservation B. law of conservation of energy C. both of them D. none of them
9	Internal friction of fluid is called	A. Surface tension B. Viscosity C. Resistance D. Cohesive force
10	Ball pen functions on the principle of	A. Viscosity B. Boyle's law C. Gravitational force D. Surface tnesion