Civil engineering MCQ and structural analysis MCQ for competitive exam.

## Q. 1 The number of independent equations to be satisfied for static equilibrium of a plane structure is

A. 3

B. 5

C. 4

D. 6

A. 3

## Q. 2 If there are m unknown member forces, r unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin‐jointed plane frame is given by

A. m ‐ r + 2j

B. m + r ‐ 2j

C. m ‐ r + 2j

D. m + r + 2j

B. m + r ‐ 2j

## Q. 3 Number of unknown internal forces in each member of a rigid jointed plane frame is

A. 5

B. 3

C. 2

D. 1

B. 3

## Q. 4 Degree of static indeterminacy of a rigid‐jointed plane frame having 15 members, 3 reaction components and 14 joints is

A. 6

B. 5

C. 1

D. 4

A. 6

## Q. 5Degree of kinematic indeterminacy of a pin‐jointed plane frame is given by

A. 2j ‐ r

B. j ‐ 2r

C. 3j ‐ r

D. 2j + r

A. 2j ‐ r

## Q. 6 Independent displacement components at each joint of a rigid‐jointed plane frame are

A. three linear movements

B. two linear movements and one rotation

C. one linear movement and two rotationsc

D. three rotations

B. two linear movements and one rotation

## Q. 7If in a pin‐jointed plane frame (m + r) > 2j, then the frame is

A. stable and statically determinate

B. stable and statically indeterminate

C. unstable

D. none of the above

**where m is number of members, r is reaction components and j is number of joints**

B. stable and statically indeterminate

## Q. 8 A pin‐jointed plane frame is unstable if

A. (m + r)<2j

B. m + r = 2j

C. (m + r)>2j

D. none of the above

**where m is number of members, r is reaction components and j is number of joints**

A. (m + r)<2j

## Q. 9 A rigid‐jointed plane frame is stable and statically determinate if

A. (m + r) = 3j

B. (3m + r) = 3j

C. (m + r) = 2j

D. (m + 3r) = 3j

**where m is number of members, r is reaction components and j is number of joints**

C. (m + r) = 2j

## Q. 10 The number of independent equations to be satisfied for static equilibrium in a space structure is

A. 5

B. 3

C. 6

D. 2

C. 6