Static and Kinematic Equilibrium MCQ

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1. Independent equations to be satisfied for static equilibrium of plane structure is____________

A) 1
B) 2 
C) 3
D) 6

... Answer is C) 3

 

2. If in a rigid jointed space frame, (6m+r)<6j, then the frame is ________

A) Stable and statically determinate
B) Stable and statically indeterminate
C) Unstable
D) Stable

... Answer is C)
The static indeterminacy of the structure is negative.
 

3. The degree of static indeterminacy of a pin jointed space frame is given by

A) m+r-3j
B) m+r-6j
C) 3m+r-3j
D) m+r+3j

... Answer is A)
m+r-3j.
 

4. Number of independent equations to satisfy equilibrium of a Space frame structure is ________

A) 1
B) 2
C) 3
D) 6 

... Answer is D)
6.
 

5. The degree of kinematic indeterminacy of a pin jointed space frame is 

A) 2j-r 
B) 3j-r 
C) 2j+r 
D) 3j+4 

... Answer is B)
3j-r.
 

6. If there are m unknown member forces, r unknown reactions components and j number of joints, then the degree of static indeterminacy of a pin jointed frame is given by

A) m+r+2j 
B) m-r-3j
C) m+r-2j 
D) m+r-3j 

... Answer is C)m+r-2j

 

7. A rigid jointed plane frame is stable and statically determinate if_________

A) (m+r)=2j
B) (m+r) 3j 
C) (m+3r)=3j
D) (3m+r)3j 

... Answer is D)
(3m+r)-3j

 

8. Degree of kinematic indeterminacy of a pin jointed plane frame is_______

A) 3j-r
B) 2j+r
C) 2j-r
D) 3j+r

... Answer isC)
2j-r .
 

9. What are the independent displacement components at each joints of a rigid jointed plane frame are

A) Three linear movements
B) Three rotations
C) Two rotations and one linear movement
D) Two linear movement and one rotation 

... Answer is D)
Two linear movements---- in x and y direction : one rotation about z direction.
 

10. If a pin jointed plane frame (m+r)>2j, then the frame is

A) Stable and statically determinate
B) Unstable
C) Stable and statically indeterminate
D) either stable or unstable  

... Answer is C
Static indetermincay is positive
 

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Static and Kinematic Indeterminac, Methords of Structural, Analysis,Arches