Civil Engineering MCQ. PWD, CPWD, RRB, SSC, Mock Test Paper

Subject: Structural design 9

**Part 3: List for questions and answers of Structural design II**

**Q1. The maximum ratio of span to depth of a cantilever slab, is?**

a) 8

b) 10

c) 12

d) 14

**Q2. In a singly reinforced beam, the effective depth is measured from its compression edge to?**

a) Tensile edge

b) Tensile reinforcement

c) Neutral axis of the beam

d) Longitudinal central axis

**Q3. If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than?**

a) 4 mm

b) 5 mm

c) 6 mm

d) 10 mm

**Q4. The length of the straight portion of a bar beyond the end of the hook, should be at least?**

a) Twice the diameter

b) Thrice the diameter

c) Four times the diameter

d) Seven times the diameter

**Q5. The maximum diameter of a bar used in a ribbed slab, is?**

a) 12 mm

b) 6 mm

c) 20 mm

d) 24 mm

**Q6. Design of R.C.C. cantilever beams, is based on the resultant force at?**

a) Fixed end

b) Free end

c) Mid span

d) Mid span and fixed support

**Q7. Piles are usually driven by?**

a) Diesel operated hammer

b) Drop hammer

c) Single acting steam hammer

d) All the above

**Q8. The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is?**

a) 30°

b) 40°

c) 45°

d) All the above

**Q9. The thickness of the flange of a Tee beam of a ribbed slab is assumed as?**

a) Width of the rib

b) Depth of the rib

c) Thickness of the concrete topping 0d) half the thickness of the rib

d) Twice the width of the rib

**Q10. In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called?**

a) Under-reinforced section

b) Over reinforced section

c) Economic section

d) Critical section

**Q11. A pre-stressed concrete member?**

a) Is made of concrete

b) Is made of reinforced concrete

c) Is stressed after casting

d) Possesses internal stresses

**Q12. A part of the slab may be considered as the flange of the T-beam if?**

a) Flange has adequate reinforcement transverse to beam

b) It is built integrally with the beam

c) It is effectively bonded together with the beam

d) All the above

**Q13. An R.C.C. roof slab is designed as a two way slab if?**

a) It supports live loads in both directions

b) The ratio of spans in two directions is less than 2

c) The slab is continuous over two supports

d) The slab is discontinuous at edges

**Q14. A raft foundation is provided if its area exceeds the plan area of the building by?**

a) 10%

b) 20%

c) 30%

d) 50%

**Q15. If H is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is?**

a) 0.3 H

b) 0.4 H

c) 0.5 H

d) 0.7 H

**Q16. If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is?**

a) 200 cm

b) 300 cm

c) 150 cm

d) 100 cm

**Q17. In a combined footing if shear stress does not exceed 5 kg/cm^2, the nominal stirrups provided are?**

a) 6 legged

b) 8 legged

c) 10 legged

d) None of these

**Q18. A flat slab is supported?**

a) On beams

b) On columns

c) On beams and columns

d) On columns monolithically built with slab

**Q19. If diameter of a reinforcement bar is d, the anchorge value of the hook is?**

a) 4d

b) 8d

c) 12d

d) 16d

**Q20. Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than?**

a) One diameter of thinner bar

b) One diameter of thicker bar

c) Twice the diameter of thinner bar

d) None of these

**Part 3: List for questions and answers of Structural design II**

Q1. Answer: c

Q2. Answer: b

Q3. Answer: b

Q4. Answer: d

Q5. Answer: d

Q6. Answer: a

Q7. Answer: d

Q8. Answer: d

Q9. Answer: c

Q10. Answer: b

Q11. Answer: d

Q12. Answer: d

Q13. Answer: b

Q14. Answer: d

Q15. Answer: d

Q16. Answer: c

Q17. Answer: b

Q18. Answer: d

Q19. Answer: d

Q20. Answer: b