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 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
2	Substances that flow easily have	A. large coefficient of viscosity B. small coefficient of viscosity C. either of them D. none of them
3	Fluids resist force, This property is called	A. Stiffness B. Strength C. Ductility D. Elasticity
4	Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:	A. Not affected due to its size B. Twice that of small size ball C. Four times that of small size ball D. 1/4th of that of small size ball
5	At the starting point of the free fall motion of an object, its acceleration will be	A. maximum B. minimum C. zero D. none of them
6	High speed meteors rushing through air reduces to ashes because of:	A. Force of gravity B. High resistance of air C. Drag force D. None of these
7	Matter is made up of very tiny particles called	A. Atoms B. Molecules C. Ions D. None of these
8	During the steady flow, different streamlines	A. cannot across each other B. can across each other C. either of them D. neither of them
9	Where the streamlines are very close to each other, the pressure will be	A. low B. zero C. high D. all of them
10	The equation of continuity is	A. A₁A_{2 = V}₁V₂ B. A_1/_V_{1 =}A_2/V₂ C. _V_1/A₁₌V_2/A₂ D. A₁_V_{1 =}A₂V₂