Practice Test: Question Set - 06
1. Pick up the correct statement from the following:
- (A) The distance
between centers of two adjacent rivets in line with the direction of stress
shall not exceed 16 t or 200 mm whichever is less in tension
members
- (B) The distance
between the centers of two adjacent rivets in line with the direction of stress
shall not exceed 12 t or 203 mm whichever is less in
compression members
- (C) The
minimum pitch of rivets should not be less than 2.5 times the diameter of the
rivet hole
- (D) All the above
2. If fbt and fs are the numerical values of bending tension and shear stresses, the equivalent stress fe, is
- (A) √(fbt2
+ fs2)
- (B) √(fbt
+ fs)
- (C) √(fbt2
+ 3fs2)
- (D) √(fbt2
+ 2fs2)
3. For concreting of heavily reinforced sections without vibration, the workability of concrete should be
- (A) Very low
- (B) Low
- (C) Medium
- (D) High
4. The distance of the critical section for shear from the periphery of the column or drop panel is at a distance (where d is effective depth of flat slab).
- (A) d
- (B) d/2
- (C) d/3
- (D) d/5
5. If D is the overall thickness of the slab, the diameter of the reinforcing bars should not exceed
- (A) 1/4 × D
- (B) 1/5 × D
- (C) 1/6 × D
- (D) 1/8 × D
6. For the proportions
- (A) 1
: 1½ the maximum size of aggregates, is 10 mm
- (B) 1 : 2 the
maximum size of aggregates, is 20 mm
- (C) 1 : 2½
the maximum size of aggregates, is 40 mm
- (D) All the
above
7. If the ratio of effective span to overall depth of a simply supported beam is equal or greater than 1 but less than or equal to 2, the lever arm, is
- (A) 0.2 (l +
2D)
- (B) 0.3 (l +
3D)
- (C) 0.2 (l +
3D)
- (D) 0.3 (l +
2D)
8. The value of the constant K in the formula AS = K.bd/fS for determining the minimum area of tension reinforcement in a beam is
- (A) 0.95
- (B) 0.90
- (C) 0.85
- (D) 0.80
9. The distance between, rivet line and the nearest edge of a joint not exposed to weather, is taken (where t is thickness in mm of the thinner outside plate).
- (A) 6 t
- (B) 8 t
- (C) 10 t
- (D) 12 t
10. The structure which is subjected to an imposed load after 72 hours for a period of 24 hours, is deemed to be unacceptable if it fails to recover the net deflection less than
- (A) 90 %
- (B) 85 %
- (C) 80 %
- (D) 75 %
11. In adverse circumstances, the reinforced concrete member immersed in sea water or subjected to sea spray, the maximum permissible cover for the reinforcing bars, should not exceed
- (A) 40 mm
- (B) 50 mm
- (C) 70 mm
- (D) 75 mm
12. The minimum length of the side or diameter of the column base shall not be less than (where d is the minimum diameter of the column).
- (A) (d + 75) mm
- (B) 1.2 (d - 75) mm
- (C) 1.5 (d + 75) mm
- (D) 1.6 (d + 75) mm
13. A solid slab spanning in two directions at right angles and carrying a uniformly distributed load is supported on beams. If the length of two such beams A and B perpendicular to each other are x and y (x<y), the load shared by the beam A, is
- (A) ½ xy
- (B) ⅓ xy
- (C) ¼ x2
- (D) ¼ y2
14. The thickness of flat single lacing is, taken (where l is effective length of the bar).
- (A) l/20
- (B) l/25
- (C) l/30
- (D) l/40
15. If b is actual width of a flange, Dt is the thickness of the flange, bω is the breath of the web, lo is the distance between the points of zero moments in a beam, the effective width of the flange, is
- (A) [lo/(lo/b) + 2] + bω
- (B) [lo/(lo/b) + 3] + 2bω
- (C) [lo/(lo/b) + 4] + bω
- (D) [0.5lo/(lo/b) + 4] + bω
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