78. The minimum diameter of longitudinal reinforcement of a column should not be less than
A. 6 mm
B. 8 mm
C. 10 mm
D. 12 mm

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79. Pick up the correct statement regarding columns.
A. The cross sectional area of longitudinal reinforcement, should not be less than 0 8% nor more than 4% of its gross sectional area
B. The minimum of longitudinal bars provided in rectangular and circular columns are 4 and 6 respectively
C. In helically reinforced column, the minimum number of longitudinal reinforcement should be six
D. All the above.

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80. The pitch of transverse reinforcement of a column is taken as
A. least lateral diamension of the compression member
B. sixteen times the smallest diameter of the longitudinal reinforcement of the column
C. forty eight times the diameter of the transverse reinforcement
D. least value of the above.

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81. Minimum diameter of the lateral ties should not be less than
A. 4 mm
B. 5 rrim
C. 6 mm
D. 10 mm.

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82.  A simply supported beam shall be deemed to be a deep beam if the ratio of its effective span to overall depth, is
A.2
B.2.5
C. less than 2
D. less than 2.5.

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83. A continuous beam shall be deemed to be a deep beam if the ratio of its effective span to overall depth, is
A.2
B.2.5
C. less than 2
D. less than 2.5.

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84.  If the ratio of effective supported beam is equal or equal to 2, the lever arm, is span to overall depth of a simply greater than 1 but less than or
A. 0.2 (1 + 2,D)
B. 0.3 (1 + 3D)
C. 0.2 (1 + 3D)
D. 0.3 (1 + 2D).

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