1. 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 ✅ The correct answer is option A.
2. Moist sand may contain surface water by mass upto__________________? A. 1.25% B. 2.5% C. 5.0% D. 7.5% ✅ The correct answer is option B.
3. The spans of filler joists supporting a slab may be considered approximately equal if the longest span does not exceed the shortest span more than__________________? A. 5% B. 10% C. 15% D. 25% ✅ The correct answer is option C.
4. Removal of props under______________? A. slabs spanning upto 4.5 m is 14 days B. beams spanning upto 6 m is 14 days C. slabs spanning upto 4.5 m is 7 days D. All the above ✅ The correct answer is option D.
5. Pick up the correct statement for the web stiffeners? A. d is the distance between flange angles or the clear distance between flanges B. vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d C. for horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange D. all the above ✅ The correct answer is option D.
6. The anchorage value of standard U-type hook of a reinforcing bar of diameter d in tension, is______________? A. 4 d B. 8d C. 12 d D. 16 d ✅ The correct answer is option D.
7. All reinforcement should be free from_________________? A. paints B. loose rust C. loose mill scales D. All the above ✅ The correct answer is option D.