Practice Test: Question Set - 05
1. 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 rotations
- (D) Three rotations
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 - 3j
3. The carryover factor in a prismatic member whose far end is fixed is
- (A) 0
- (B) 1/2
- (C) 3/4
- (D) 1
4. Effects of shear force and axial force on plastic moment capacity of a structure are respectively to
- (A) Increase and decrease
- (B) Increase and increase
- (C) Decrease and increase
- (D) Decrease and decrease
5. The degree of kinematic indeterminacy of a pin-jointed space frame is
- (A) 2j - r
- (B) 3j - r
- (C) j - 2r
- (D) j - 3r
Where ‘j’ is number of joints and ‘r’
is reaction components
6. The maximum bending moment due to a train of wheel loads on a simply supported girder
- (A) Always occurs at centre of span
- (B) Always occurs under a wheel load
- (C) Never occurs under a wheel load
- (D) None of the above
7. Consider the following statements:
Sinking of an intermediate support of a
continuous beam
- Reduces the negative moment at support.
- Increases the negative moment at support.
- Reduces the positive moment at support.
- Increases the positive moment at the centre of span.
Of these statements
- (A) 1 and 4 are correct
- (B) 1 and 3 are correct
- (C) 2 and 3 are correct
- (D) 2 and 4 are correct
8. When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when
- (A) The centre of gravity of the load system is midway
between the centre of span and wheel load under consideration
- (B) The centre of span is midway between the centre of
gravity of the load system and the wheel load under consideration
- (C) The wheel load under consideration is midway
between the centre of span and the centre of gravity of the load system
- (D) None of the above
9. Castigliano's first theorem is applicable
- (A) For statically determinate structures only
- (B) When the system behaves elastically
- (C) Only when principle of superposition is
valid
- (D) None of the above
10. Number of unknown internal forces in each member of a rigid jointed plane frame is
- (A) 1
- (B) 2
- (C) 3
- (D) 6
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