## Seraj Uddin is teaching live on Unacademy Plus

100 MOST REPEATED R. . . QUESTIONS ANALYSIS Detailed explanation the course By:- Seraj Uddin Rate and Review unacademy

01 R. . . was developed and first used by A) Joseph Monier B) John Smeaton C) Fronsis Coignet D) Joseph Aspdin

02. Modulus of elasticity of concrete,E is calculated using: A) E 5000Vfck B) E 500Vfck C) E 50Vfck D) E 5Vfck

As pet . DE Shoot term, time da Creep enlent -tluing, ow'ck i cluds Propos concvet Condition cun Concre te proportion cement. qu> Hix ,Tgpa

03 Mild steel used in RCC structures conforms to A) IS 43:2 B) IS-1556 C) IS 1786 D) IS 2062

04 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 A) 20 cm B) 25.26 cm C) 35 cm D) 55.26 cm

^) Given

05. If the modular ratio is m,steel ratio is r and overall depth of a beam is d, the depth of the critical neutral axis of the beam is A) (m/m-r) d B) (m/m+r) d C) fm+r/m) d D) None of these

iven Steel overall clopth a he know thal, CbC

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