Test: Space Trusses

# Test: Space Trusses

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## 11 Questions MCQ Test | Test: Space Trusses

Test: Space Trusses for Civil Engineering (CE) 2022 is part of Civil Engineering (CE) preparation. The Test: Space Trusses questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Space Trusses MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Space Trusses below.
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Test: Space Trusses - Question 1

### What is the simplest element of a space truss

Detailed Solution for Test: Space Trusses - Question 1

Answer: b
Explanation: Simplest element of a space truss is built on a basic triangle.

Test: Space Trusses - Question 2

### How many additional members are required to make a simple space truss from a basic tetrahedral element?

Detailed Solution for Test: Space Trusses - Question 2

Answer: c
Explanation: Three additional members forming 1 extra joint are needed to form multi-connected tetrahedrons aka simple space truss.

Test: Space Trusses - Question 3

### How many equations are solved per joints while solving space trusses?

Detailed Solution for Test: Space Trusses - Question 3

Answer: c
Explanation: 3 equations are solved per joint. Forces are conserved in all the three directions.
B= no. of bars of the truss
R= total no. of external support reaction
J= total no. of joints.

Test: Space Trusses - Question 4

If B=6, R=6 and J= 4, then the truss is:-

Detailed Solution for Test: Space Trusses - Question 4

Answer: a
Explanation: B + R = 12 = 3*J. So, truss is statically determinate. Without further insight, we can’t predict stability.

Test: Space Trusses - Question 5

If, in the above question R= 7 then the truss are:-

Detailed Solution for Test: Space Trusses - Question 5

Answer: b
Explanation: B + R = 13 > 3*J. So, truss is statically indeterminate. Without further insight, we can’t predict stability.

Test: Space Trusses - Question 6

If, in the above question R= 5 then the truss is:-

Detailed Solution for Test: Space Trusses - Question 6

Answer: d
Explanation: B + R = 11 < 3*J. So, the truss will be unstable.

Test: Space Trusses - Question 7

The external stability of the space truss requires that the support reactions keep the truss in force equilibrium about all the axes.
State whether the above statement is true or false.

Detailed Solution for Test: Space Trusses - Question 7

Answer: b
Explanation: They require moment equilibrium about all the axes as well.

Test: Space Trusses - Question 8

What is the degree of freedom of space roller joint?

Detailed Solution for Test: Space Trusses - Question 8

Answer: b
Explanation: It can move along a slot in the base plane.

Test: Space Trusses - Question 9

According to assumptions, which type of joints are used in space truss?

Detailed Solution for Test: Space Trusses - Question 9

Answer: b
Explanation: To treat every member of a space truss as axial- force members, every joint is assumed to be of ball & socket type.

Test: Space Trusses - Question 10

How many reaction forces are involved in a short link type of joint?

Detailed Solution for Test: Space Trusses - Question 10

Answer: a
Explanation: One force is unknown which acts in line with the link.

Test: Space Trusses - Question 11

How many reaction forces are involved in a roller type of joint?

Detailed Solution for Test: Space Trusses - Question 11

Answer: a
Explanation: One unknown force acts perpendicular to the plane of roller.

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