What Is The Si Unit Of Viscosity Mcq

The SI unit of viscosity is the pascal second (Pa·s) or kg·m−1·s−1. The SI unit of kinematic viscosity is square metre per second or m2/s.

What is the SI unit of coefficient of viscosity Mcq?

The SI unit of viscosity is the pascal second (Pa·s).

Is Decapoise the SI unit of viscosity?

SI unit of Viscosity is Decapoise (Kg/ms) or pascal second. This is the property of liquids and gases both.

What is the SI unit of viscosity by Testbook?

Detailed Solution Viscosity: The state of being sticky, thick, and semi-fluid inconsistency, due to internal friction is called viscosity. The SI unit of viscosity is newton-second per square meter (N·s/m 2).

Is poise a SI unit?

poise
Unit system	Centimetre–gram–second system of units
Unit of	Dynamic viscosity
Symbol	P
Named after	Jean Léonard Marie Poiseuille

What is the SI unit of velocity?

The SI unit of velocity is metre per second (m/s). Alternatively, the velocity magnitude can also be expressed in centimetres per second (cm/s).

What is the viscosity index Mcq?

Explanation: The rate of the change of the viscosity with raise in temperature is measured by an arbitrary scale called as viscosity index. The viscosity index is found by comparing the viscosity of the oil under the temperature of 1000F with two standard oils.

What is SI unit of viscosity coefficient in gas?

so SI unit of the coefficient of viscosity is Nsm−2.

Is the SI unit of dynamic viscosity?

Dynamic viscosity: The SI physical unit of dynamic viscosity (μ) is the Pascal-second (Pa s), which is identical to 1 kg m−1 s−1.

What quantity is viscosity?

The standard viscosity definition is a fluid's resistance to flow and to deformation through shear stress. The standard SI unit of viscosity is Newton-second per square meter ( Ns/m2 N s / m 2 ), which is usually shortened to Pa-second (Pa s ), that is because 1 Pa is equal to 1 N/m2 N / m 2 .

What is viscosity number?

It's what the numbers and letters stand for on motor oil bottles — 10W-30 for example. Viscosity measures how much the motor oil can resist flow. Imagine pouring motor oil out of the bottle; how fast it comes out indicates the viscosity.

How is viscosity measured?

The viscosity of a liquid (see Viscosity) is measured using a viscometer, and the best viscometers are those which are able to create and control simple flow fields.

What is the SI unit called?

The International System of Units, known by the international abbreviation SI in all languages and sometimes pleonastically as the SI system, is the modern form of the metric system and the world's most widely used system of measurement.

What is SI and CGS unit of viscosity?

Solution : SI unit of viscosity is Pa-s and cgs unit of viscosity is `dyn e cm^(-2)s` or poise, where `1 Pa-s = 10 dyn e cm^(-2)s = 10 poise`.

What is the SI unit of density?

Though the SI unit of density is kg/m³, for convenience we use g/cm³ for solids, g/ml for liquids, and g/L for gases. Density can be explained as the relationship between the mass of the substance and the volume it takes up. In a qualitative term, it shows how much heavy an object is at constant volume.

What is the SI unit for mass?

The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.

What is the SI unit of momentum?

SI Unit of Momentum As mentioned above, the units of momentum will be the product of the units of mass and velocity. Mass is measured in kg and velocity in ms-1, therefore, the SI unit of momentum will be kgm/s(-1).

What is viscosity index and its unit?

The viscosity index (VI) is an arbitrary, unit-less measure of a fluid's change in viscosity relative to temperature change. It is mostly used to characterize the viscosity-temperature behavior of lubricating oils. The lower the VI, the more the viscosity is affected by changes in temperature.

What is the formula of viscosity class 11?

Units of Viscosity Hence, η = dynes × cm / cm2 ×cm/sec. Therefore we may write: η = dynes cm-2 sec or the units of viscosity are dynes sec cm-2.

What is viscosity index formula?

Viscosity Index Calculator Y = kinematic viscosity at 100 °C of the petroleum product whose viscosity index needs to be calculated, mm2 /s. H = kinematic viscosity of an oil at 40 °C of 100 viscosity index having the same kinematic viscosity at 100 °C as the oil whose viscosity index needs to be calculated, mm2 /s.