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Test: Method Of Joints - Civil Engineering (CE) MCQ


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15 Questions MCQ Test - Test: Method Of Joints

Test: Method Of Joints for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Test: Method Of Joints questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Method Of Joints MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Method Of Joints below.
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Test: Method Of Joints - Question 1

If the whole truss is in equilibrium then all the joints which are connected to that truss is in equilibrium. This is known as:

Detailed Solution for Test: Method Of Joints - Question 1

If the whole truss is in equilibrium then all the joints which are connected to that truss is in equilibrium. This is known as method of joints. This is one of the methods to solve for the forces which are acting along the trusses.

Test: Method Of Joints - Question 2

Find the force in the member vertical at the right, joined by the hinge.

Detailed Solution for Test: Method Of Joints - Question 2

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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Test: Method Of Joints - Question 3

The free body diagram of which part of the section of the truss is made to make use of method of joints?

Detailed Solution for Test: Method Of Joints - Question 3

The free body diagram of joints part of the section of the truss is made to make use of method of joints. Various equations of equilibrium are made to do the calculations. The net force acting on the vertical direction is made zero. Also horizontal direction forces are made to be zero.

Test: Method Of Joints - Question 4

For applying the method of joint at joints the forces need to coplanar.

Detailed Solution for Test: Method Of Joints - Question 4

The forces are coplanar that’s why they are there in the calculations in the method of joints. The forces are resolved in 2D. This makes the condition of the equilibrium fulfilled and hence the method of joints uses the forces in the same plane for its calculation.

Test: Method Of Joints - Question 5

For applying the method of joint at joints the forces need to be concurrent.

Detailed Solution for Test: Method Of Joints - Question 5

The forces are concurrent that’s why they are there in the calculations in the method of joints. The forces are resolved in 2D. This makes the condition of the equilibrium fulfilled by cancelling of various force members and hence the method of joints uses the concurrent forces for its calculation.

Test: Method Of Joints - Question 6

Find the force in the member RQ.

Detailed Solution for Test: Method Of Joints - Question 6

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: Method Of Joints - Question 7

We use the method of joint to find the forces acting over the joints. In this we start from the joint having at least one known force and at the most two unknown forces.

Detailed Solution for Test: Method Of Joints - Question 7

This makes the calculations easy. Also for the solving of any equation one requires equal number of variables as that of equal number of equation. So to do the calculations easily the above mentioned conditions are followed.

Test: Method Of Joints - Question 8

We use the method of joint to find the net force acting over the entire structure.

Detailed Solution for Test: Method Of Joints - Question 8

We use this method for the simplification of the forces in the sections of the structure. Not the entire structure. This means that the statement given is wrong. It should be the joints not the whole structure.

Test: Method Of Joints - Question 9

Which of the following is correct?

Detailed Solution for Test: Method Of Joints - Question 9

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.

Test: Method Of Joints - Question 10

The magnitude of the unknown force can’t be known. But the direction can be founded out.

Detailed Solution for Test: Method Of Joints - Question 10

The first part is wrong. We can determine the magnitude of the unknown force. It can be done by using the equilibrium equations. That equating the forces zero, of the three different axis. Thus making the components of the unknown founded out.

Test: Method Of Joints - Question 11

Find the force in the member PQ.

Detailed Solution for Test: Method Of Joints - Question 11

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: Method Of Joints - Question 12

What is after taking the assumption of the direction of the force, the direction comes opposite?

Detailed Solution for Test: Method Of Joints - Question 12

The direction is comes opposite, means that the assumption was wrong. But that doesn’t means that the question can’t be solved further. One needs to change the sign of the direction and the question is solved. Thus the calculations of the force direction.

Test: Method Of Joints - Question 13

The resultant of three equal vectors having mutual angles being 120 degree and being originated from a single point is zero.

Detailed Solution for Test: Method Of Joints - Question 13

As one can imagine three vectors coming out of a single point and are having a 120 degree angle with their adjacent ones, the resultant would be zero.

Test: Method Of Joints - Question 14

The magnitude of the resultant of the two vectors is always:

Detailed Solution for Test: Method Of Joints - Question 14

Yes, the magnitude of the resultant of the two vectors always depends on the angle between them. It might be greater or smaller than one of the vector’s length. For perfectly saying, it does depends upon the angle between them.

Test: Method Of Joints - Question 15

Find the force in the member PR.

Detailed Solution for Test: Method Of Joints - 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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