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Test: Zero Force Member - Mechanical Engineering MCQ


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15 Questions MCQ Test - Test: Zero Force Member

Test: Zero Force Member for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Test: Zero Force Member questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Zero Force Member MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Zero Force Member below.
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Test: Zero Force Member - Question 1

Zero force members has _______ loadings.

Detailed Solution for Test: Zero Force Member - Question 1

The zero member force are having no loadings. They doesn’t involve in the loading part of the story in the trusses. They doesn’t provide the stress nor the strain to the body of the structure. Hence they have no load associated with them.

Test: Zero Force Member - Question 2

The zero forces are used to improve__________ of the structure.

Detailed Solution for Test: Zero Force Member - Question 2

The zero forces increase the stability of the structures. That the frames of the structures, which are there present in the structure. The stability of the joints, making them to be in rotational as well as translational equilibrium.

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Test: Zero Force Member - Question 3

Find the force in the member UR.

Detailed Solution for Test: Zero Force Member - Question 3

The direction of the unknown is not known to us. To know the direction of the unknown force we take assumption of it. That is we assume that the particular direction might be the direction of the force and then we do the calculations accordingly. And then we apply the equilibrium equations to the joints.

Test: Zero Force Member - Question 4

We find the zero force members by inspections.

Detailed Solution for Test: Zero Force Member - Question 4

The answer is yes. We find the zero force members by inspection. We do not have a special function or any special method for finding the zero force members of the structure. But yes the zero force members are founded by inspections only.

Test: Zero Force Member - Question 5

If two members of the structure (trusses) forms a truss joint and there is no external force acting on that joint then the two members are called___________

Detailed Solution for Test: Zero Force Member - Question 5

If two members of the structure (trusses) forms a truss joint and there is no external force acting on that joint then the two members are called as zero force members. This is again came from inspection. If we imagine the same, we see that there are no movements, thus they are zero force members.

Test: Zero Force Member - Question 6

If two members of the structure (trusses) form a truss joint and there is no external force acting on that joint then the two members are called___________

Detailed Solution for Test: Zero Force Member - Question 6

If two members of the structure (trusses) forms a truss joint and there is no external force acting on that joint then the two members are called as zero force members. This is again came from inspection. If we imagine the same, we see that there are no movements, thus they are zero force members.

Test: Zero Force Member - Question 7

If two members of the structure (trusses) forms a truss joint and there is an external force acting on that joint then the two members are called as zero force members.

Detailed Solution for Test: Zero Force Member - Question 7

If two members of the structure (trusses) forms a truss joint and there is no external force acting on that joint then the two members are called as zero force members. This is again came from inspection. If we imagine the same, we see that there are no movements, thus they are zero force members.

Test: Zero Force Member - Question 8

Which of following is not considered as the true condition for the three members to be zero force members?

Detailed Solution for Test: Zero Force Member - Question 8

The three members to be having a zero member must have any two of the three members collinear. There must be no external forces acting on the section or the joint which is being selected. And obviously all the members must be attached.

Test: Zero Force Member - Question 9

In three members having one as zero force member in truss, what if there is an external force applied?

Detailed Solution for Test: Zero Force Member - Question 9

For making any one of the member of the truss to be as a zero member all the conditions are to be followed. Like any two of the three members collinear. There must be no external forces acting on the section or the joint which is being selected.

Test: Zero Force Member - Question 10

What will happen if the collinearity of the two members is affected?

Detailed Solution for Test: Zero Force Member - Question 10

For making any one of the member of the truss to be as a zero member all the conditions are to be followed. Like any two of the three members collinear. There must be no external forces acting on the section or the joint which is being selected.

Test: Zero Force Member - Question 11

For the truss shown in the figure, the force in the member QR is

Detailed Solution for Test: Zero Force Member - Question 11

Correct option is D. 

Test: Zero Force Member - Question 12

What will happen if the three members are all perpendicular to each other? No external force is applied to them.

Detailed Solution for Test: Zero Force Member - Question 12

As far as the conditions are required for the equilibrium and for the zero force members, this joint explained will be having a zero force member. Which will be unaffected to shear stress and shear strain. Thus the zero member formation.

Test: Zero Force Member - Question 13

Find the force in the member UT.

Detailed Solution for Test: Zero Force Member - Question 13

The direction of the unknown is not known to us. To know the direction of the unknown force we take assumption of it. That is we assume that the particular direction might be the direction of the force and then we do the calculations accordingly. And then we apply the equilibrium equations to the joints.

Test: Zero Force Member - Question 14

The ___________ forces do not cause the rotation.

Detailed Solution for Test: Zero Force Member - Question 14

The concurrent forces are the which are somewhere touching the axis of rotation. If any of the force is touching that axis, that force is not considered, or is insufficient to cause a rotation. If a force is concurrent then the perpendicular distance of the force from the line of axis is zero, thus no rotation. As we know rotation is caused by moment.

Test: Zero Force Member - Question 15

Find the vertical support reactions at A.

Detailed Solution for Test: Zero Force Member - Question 15

The direction of the unknown is not known to us. To know the direction of the unknown force we take assumption of it. That is we assume that the particular direction might be the direction of the force and then we do the calculations accordingly. And then we apply the equilibrium equations to the joints.

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