RCC Structures Design Mock Test -4|| Civil Engineering Mock Tests Welcome to your RCC structures Design Mock test - 4 Take an exciting test in RCC structures Design You have only 20 mins to complete the test (25 Questions) Wish you all the best!!! Name Email 1. According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than A. 5 cm B. 10 cm C. 15 cm D. 20 cm2. For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed A. 10 B. 15 C. 20 D. 253. The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept A. 0.7 B. 0.8 C. 0.9 D. 0.64. In a prestressed member it is advisable to use A. low strength concrete only B. high strength concrete only C. low strength concrete but high tensile steel D. high strength concrete and high tensile steel5. The self-weight of the footing, is A. not considered for calculating the upward pressure on footing B. also considered for calculating the upward pressure on footihg C. not considered for calculating the area of the footing D. both (b) and (c)6. The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is A. 1400 kg/cm2 B. 190 kg/cm2 C. 260 kg/cm2 D. 230 kg/cm27. A circular slab subjected to external loading, deflects to form a A. semi-hemisphere B. ellipsoid C. parabolloid D. none of these.8. The live load to be considered for an accessible roof, is A. Nil B. 75 kg/m3 C. 150 kg/m2 D. 200 kg/cm29. An under-reinforced section means A. Steel is provided at the under side only B. Steel provided is insufficient C. Steel provided on one face only D. Steel will yield first.10. If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept A. 4.5 m B. 4.0 m C. 3.5 m D. 3.0 m11. The ratio of the breadth to effective depth of a beam is kept A. 0.25 B. 0.50 C. 0.70 D. 0.7512. Lapped splices in tensile reinforcement are generally not used for bars of size larger than A. 18 mm diameter B. 24 mm diameter C. 30 mm diameter D. 36 mm diameter13. In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed A. 10 mm B. 15 mm C. 20 mm D. 25 mm14. In a slab, the pitch of the main reinforcement should not exceed its effective depth A. three times B. four times C. five times D. two times.15. For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is A. 0.6 B. 0.7 C. 0.8 D. 0.916. Spacing of stirrups in a rectangular beam, is A. kept constant throughout the length B. decreased towards the centre of the beam C. increased at the ends D. increased at the centre of the beam.17. An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2, the beam A. is safe in shear B. is safe with stirrups C. is safe with stirrups and inclined bars D. needs revision of section18. On piles, the drop must be at least A. 80 cm B. 100 cm C. 120 cm D. 140 cm19. The steel generally used in R.C.C. work, is A. stainless B. mildsteel C. high carbon steel D. high tension steel.20. The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than A. 4 mm B. 5 mm C. 6 mm D. 7 mm21. A foundation is called shallow if its depth, is A. one-fourth of its width B. half of its width C. three-fourth of its width D. equal to its width22. An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is\ A. safe in shear B. is safe with stirrups C. is safe with stirrups and inclined members D. needs revision of the section.23. The minimum head room over a stair must be A. 200 cm B. 205 cm C. 210 cm D. 200 cm24. he diameter of the column head support a flat slab, is generally kept A. 0.25 times the span length B. 0.25 times the diameter of the column C. 4.0 cm larger than the diameter of the column D. 5.0 cm larger than the diameter of the column25. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is A. square B. rectangular C. trapezoidal D. triangular. Share to all