SSC-JUNIOR ENGINEER (Civil & Structural) Online Exam 2017 (Part-IV)

Total Questions: 50

31. Read the question given below

Correct Answer: C.
Solution:

32. The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth are 62.5 kg/cm² and 250 kg/cm² respectively. If m = 15 , the depth of its neutral axis is

Correct Answer: C. 30 cm
Solution:No explanation given in the book

33. A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis

Correct Answer: A. remains within the flange
Solution:A T-beam behave as a rectangular beam of a width equal to its flange when its neutral axis remains within the flange. In this condition the depth of Neutral axis is calculated given

34. If the maximum bending moment of a simply supported slab is M Kg. cm, the effective depth of the slab is: (It is given that Q is M.R. factor)

Correct Answer: D. None of these
Solution:

35. The percentage of minimum reinforcement should of the gross sectional area in slabs is

Correct Answer: C. 0.0015
Solution:No explanation given in the book

36. In a combined footing if shear stress does not exceed 5 kg /cm², the nominal stirrups provided are

Correct Answer: B. 8 legged
Solution:In a combined footing if shear stress does not exceed 5 kg/cm² the nominal stirrups provided are 8 legged.

37. On piles, the drop must be at least

Correct Answer: C. 120 cm
Solution:On piles, the drop must be at least 120 cm, piles are used when for economic, constructional or soil condition considerations it is desirable to transmit loads to strata beyond the practical reach of shallow foundations.

38. Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of

Correct Answer: B. h/3
Solution:Total pressure on vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of h/3.

39. The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span is

Correct Answer: B. 2/3
Solution:No explanation given in the book

40. The maximum deflection of a simply supported beam of span L carrying an isolated load at the centre of the span, flexural rigidity being El is

Correct Answer: D. WL³/48EI
Solution:The following table shows the different slope and deflections of different types of beams.