ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

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ECAT Physics Chapter 6 Important MCQ's

Sr.#	Question	Answer
1	Above a certain velocity of a fluid is called	A. turbulent flow B. steady flow C. either of them D. both of them
2	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
3	According to Stoke's law, drag force depends on	A. Initial velocity B. Final velocity C. Terminal velocity D. Instantaneous velocity
4	Unit of viscosity is:	A. Kg m^-1sec^-1 B. N s m^-2 C. J s m^-3 D. All of these
5	With increase of temperature, the viscosity of liquid and gases	A. Increases for both B. Decreases for both C. Increases for liquids and decreases for gases D. Decreases for liquids and increases for gases
6	When the different streamlines cannot cross each other, then this condition is known as	A. continuity condition B. turbulent flow condition C. steady flow condition D. none of them
7	Surface tension of water is due to	A. Inter molecular attractions B. Inter molecular spaces C. Inter molecular repulsion D. None of above
8	When the velocity of a liquid flowing steadily in a tube increases, its pressure?	A. Decreases B. Increases C. Remains same D. Zero
9	The electrical forces between the molecules of a liquid are	A. Repulsive B. Attractive C. Both A and B D. None
10	Surface tension of water is reduced by adding	A. Detergents B. Camphor C. Plastic D. Both A and B

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ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

ECAT Physics Chapter 6 Fluid Dynamics

Rate of flow can be expressed in

Blood vessels can be stretch like rubber, therefore they are

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

According to Stoke's law, drag force depends on

The study of fluid in motion basically involves law of conservation of:

Internal friction of fluid is called

The mass of fluid passing through any cross-section per unit time is called

Fluid friction is _____ the friction between two solid surfaces:

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

Bernoulli's equation is applicable for

Viscosity of water is ______ that of air but ___ that of plasma.

Drag force increases if speed of the object moving through the fluid:

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Which of the following options correctly states the equation of continuity for an ideal fluid?

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:

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

ECAT Physics Chapter 6 Important MCQ's

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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

Viscosity of water is ____ that of air but _ that of plasma.

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: