# Engineering Mechanics - Mechanical Engineering (MCQ) questions and answers for Q. 11286

Q.  If a truss consists of 8 joints, 10 members and 4 reaction components then, it is a __________
- Published on 18 Sep 15

a. cantilever truss
b. defficient truss
c. redundant truss
d. none of the above

#### Discussion

• shekhar chaudhary   -Posted on 18 Apr 17
Condition for redundant: n>2J-R
Condition for defficient: n<2J-R
where, n-Member of truss, J- joints, R-reaction

Substituting in the above we get, it is defficient Truss.
• Sravanthi   -Posted on 16 Dec 15
- The condition for redundant truss is n > 2j – R

Given: joints = 8, number of members = 10 and reaction components = 4

Substituting the given values in the condition n > 2j – R

10 > (2 x 8) - 4

10 < 12, hence it is a not a redundant truss

For deficient truss, n < 2j – R

In this condition, 10 < 12

Therefore, the truss is a deficient truss.

## ➨ Post your comment / Share knowledge

Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)