Test: Moment Of Inertia For Areas


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Test: Moment Of Inertia For Areas - Question 1

Whenever the distributed loading acts perpendicular to an area its intensity varies __________

Detailed Solution for Test: Moment Of Inertia For Areas - Question 1

The load intensity is varying linearly in the structures. Thus the intensity is not varying parabolically nor is it cubically. It cannot be a vector also. Thus the intensity is linearly varied.

Test: Moment Of Inertia For Areas - Question 2

Determine the moment of inertia of the area about y-axis.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 2

Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. That is the moment of inertia perpendicular to the surface in considerance.

Test: Moment Of Inertia For Areas - Question 3

The calculation of the moment of the body due to the loadings involve a quantity called ____________

Detailed Solution for Test: Moment Of Inertia For Areas - Question 3

The calculation of the moment of the body due to the loadings involve a quantity called moment of inertia. This is having much significance in the various fields in the engineering sector. The main types are the ‘I’ section structures which are being much used.

Test: Moment Of Inertia For Areas - Question 4

Moment of Inertia is the integration of the square of the distance of the centroid and the del area along the whole area of the structure.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 4

The moment of inertia of the section is the integration of the square of the distance of the centroid and the del area along the whole area of the structure. This is having much significance in the various fields in the engineering sector. The main types are the ‘I’ section structures which are being much used.

Test: Moment Of Inertia For Areas - Question 5

There is perpendicular axis theorem for the area.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 5

There is no perpendicular axis theorem for the area. In spite there is the theorem as parallel axis for any area. Thus we have the theorem which is used to add the two mutually perpendicular moment of inertias.

Test: Moment Of Inertia For Areas - Question 6

What is parallel axis theorem and to whom it is applied?

Detailed Solution for Test: Moment Of Inertia For Areas - Question 6

Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. That is the moment of inertia perpendicular to the surface in considerance.

Test: Moment Of Inertia For Areas - Question 7

The parallel axis theorem gives the moment of inertia ______________ to the surface of considerance.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 7

Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. That is the moment of inertia perpendicular to the surface in considerance.

Test: Moment Of Inertia For Areas - Question 8

The parallel axis theorem can add any angle varied moment of inertias to give the perpendicular moment of inertia.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 8

Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. That is the moment of inertia perpendicular to the surface in considerance.

Test: Moment Of Inertia For Areas - Question 9

The parallel axis theorem uses the ____________ of the distance.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 9

Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. And uses the square of the distance from the axis of rotation.

Test: Moment Of Inertia For Areas - Question 10

The distance in the parallel axis theorem is multiplied by ___________

Detailed Solution for Test: Moment Of Inertia For Areas - Question 10

Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. And uses the square of the distance from the axis of rotation multiplied by the area.

Test: Moment Of Inertia For Areas - Question 11

One of the use of the centre of mass or centroid is as in the moment of inertia is that the net force acts at the ___________ of the loading body.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 11

In the moment of inertia calculations we see that the net force acts at the centroid of the loading body. That is if the loading system is in the form of the triangle then the at the distance 2 by 3 of the base the net force of the loading will act. And the load will be half the area of the loading.

Test: Moment Of Inertia For Areas - Question 12

If the non-Uniform loading is of the type of parabola then for calculating the moment of inertia for areas?

Detailed Solution for Test: Moment Of Inertia For Areas - Question 12

The net force will act at the centroid of the parabola. Whether it be a parabola or the cubic curve the centroid is the only point at which the net force act. Force can’t be acted horizontally if the loading is vertical. Hence whatever be the shape of the loading, the centroid is the point of action of net force. Thus the use of centroid.

Test: Moment Of Inertia For Areas - Question 13

If any external force also is applied on the structure and we are determining the moment of inertia then what should we consider?

Detailed Solution for Test: Moment Of Inertia For Areas - Question 13

The external forces are treated differently. They are not added by the force of the distributed loading. That is the force not only acts at the centroid always. It can be shifted also. Depending on the external forces. Thus the use of centroid or centre of mass.

Test: Moment Of Inertia For Areas - Question 14

The body is sometimes acted by two or three force members and we need to find the moment of inertia for the same. The difference between the two and the three force members is:

Detailed Solution for Test: Moment Of Inertia For Areas - Question 14

The definition of the two force member only defines that the forces are being acted on the two points on the body. So does is the definition of the three forces members. The points of action of the three forces are three.

Test: Moment Of Inertia For Areas - Question 15

Determine the moment of inertia of the area about x-axis.

Detailed Solution for Test: Moment Of Inertia For Areas - Question 15

Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. That is the moment of inertia perpendicular to the surface in considerance.

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