Question # 1

The direction of the streamlines is the same as the direction of the

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force

torque

velocity

weight

Blood pressure is measured in torr. Which of the following units could belong to torr?

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N m^-1

N m^-2

N m

N^-1m^-2

The SI unit of viscosity is

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kg m^-1s^-1

kg ms^-1

kg m^-1s^-2

kg m^-1s

Blood has a density

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Equal to water

Greater then water

Lesser then water

None of these

According to Stoke's law, drag force depends on

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Initial velocity

Final velocity

Terminal velocity

Instantaneous velocity

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

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1 cm

2 cm

8 cm

None

A body is moving through a viscous medium eventually comes to rest because of:

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Force of gravity

Force of friction

Its weight

Both A and C

The fluid which is incompressible and non viscous is called

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Ideal fluid

Non-ideal fluid

Prefect fluid

All

At high speed, fluid friction _____ and fuel consumption ___,:

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Increases, decreases

Increases, increases

Decreases, increases

None of these

The equation of continuity is

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A₁A_{2 = V}₁V₂

A_1/_V_{1 =}A_2/V₂

_V_1/A₁₌V_2/A₂

A₁_V_{1 =}A₂V₂

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

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speed

height

none of them

both of them

What are the SI base units of the coefficient of viscosity

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Kg m s^-2

kgm² s^-2

Kg m s^-1

kg m^-1s^-1

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

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low

zero

high

all of them

The value of viscosity of a fluid is dependent on (at constant temperature)

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the fluid itself

the fluid and its container

anything in contact with the fluid

all of the above

Blood pressure is measured by the instrument

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stethoscope

sphygmomanometer

barometer

none of them

One torr is equal to

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13.33 N/m²

760 N/m²

760 mm Hg

133.3 N/m²

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