Objective Questions and Answers Structural Design Specifications - Set 08 - ObjectiveBooks

# Practice Test: Question Set - 08

1. The greater clear dimension of web of thickness 't' should not exceed
(A) 180 t
(B) 200 t
(C) 240 t
(D) 270 t

2. The permissible bending stresses Pbet for steel slab bases should not exceed
(A) 1500 kg/cm2
(B) 1650 kg/cm2
(C) 1800 kg/cm2
(D) 1890 kg/cm2

3. The total area of side face reinforcement, in case of a deep beam should not be less than
(A) 0.1% of web area
(B) 0.2% of web area
(C) 0.3% of web area
(D) 0.4% of web area

4. A simply supported beam shall be deemed to be a deep beam if the ratio of its effective span to overall depth, is
(A) 2.0
(B) 2.5
(C) Less than 2
(D) Less than 2.5

5. The grade of reinforced concrete to be used in sea water or structures exposed to sea water should be
(A) M 10
(B) M 15
(C) M 20
(D) M 30

6. If ‘l’ is the effective span in meters and ‘D’ is overall depth of the section in mm, the structure may be accepted after 24 hour load test, provided the maximum deflection in mm is less than
(A) 10l2/D
(B) 20l2/D
(C) 30l2/D
(D) 40l2/D

7. The ratio of the effective length to the least radius of gyration of a tie member of a roof truss, which gets subjected to reversal of stress shall not exceed
(A) 180
(B) 200
(C) 240
(D) 350

8. For the plain reinforcing bars in compression, the permissible design bond stress in tension, is increased by
(A) 10 %
(B) 15 %
(C) 20 %
(D) 25 %

9. The staggered pitch is the distance between two consecutive rivets measured
(A) Parallel to the direction of stress in the member
(B) Perpendicular to the direction of stress in the member
(C) Diagonally
(D) None of these

10. If a column is subjected to dead load and super imposed load only, the maximum ratio 1/r should not be greater than
(A) 180
(B) 250
(C) 350
(D) 400

11. The pH value of water to be used in concrete shall generally be
(A) Not more than 7
(B) Not less than 6
(C) Not less than 5
(D) Not more than 6

12. Moist sand may contain surface water by mass upto
(A) 7.5 %
(B) 5.0 %
(C) 2.5 %
(D) 1.25 %

13. The development length of each bar of three bars bundled together is increased by
(A) 10 %
(B) 20 %
(C) 33 %
(D) 50 %

14. The maximum area of compression reinforcement in a beam of cross section B × D is limited to
(A) 0.02 BD
(B) 0.03 BD
(C) 0.04 BD
(D) 0.05 BD

15. 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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