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

Subject: Structural Design Paper 1

**Part 1: List for questions and answers of Structural Design I**

**Q1.As per I.S. 456 – 1978, the ph value of water shall be**

a) Less than 6

b) Equal to 6

c) Not less than 6

d) Equal to 7

**Q2. The minimum number of main steel bars provided in R.C.C.**

a) Rectangular columns is 4

b) Circular columns is 6

c) Octagonal columns is 8

d) All the above

**Q3.An R.C.C. column is treated as long if its slenderness ratio is greater than**

a) 30

b) 35

c) 50

d) 60

**Q4.Pick up the correct statement from the following:**

a) A pile is a slender member which transfers the load through its lower end on a

strong strata

b) A pile is a slender member which transfers its load to the surrounding soil

c) A pile is a slender member which transfers its load by friction

d) A pile is a cylindrical body of concrete which transfers the load at a depth greater

than its width

**Q5.If the average bending stress is 6 kg/cm^2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is**

a) 38 d

b) 48 d

c) 58 d

d) 95 d

**Q6.Thickened part of a flat slab over its supporting column, is technically known as**

a) Drop panel

b) Capital

c) Column head

d) None of these

**Q7.An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at**

a) 35°

b) 45°

c) 55°

d) 60°

**Q8.For initial estimate for a beam design, the width is assumed**

a) 1/20th of span

b) 1/25th of span

c) 1/30th of span

d) 1/40th of span

**Q9.The advantage of a concrete pile over a timber pile, is**

a) No restriction on length

b) Higher bearing capacity

c) Not necessary to cut below the water mark

d) All the above

**Q10.The transverse reinforcements provided at right angles to the main reinforcement**

a) Distribute the load

b) Resist the temperature stresses

c) Resist the shrinkage stress

d) All the above

**Q11.If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is**

a) 45

b) 50

c) 55

d) 60

**Q12.The percentage of minimum reinforcement of the gross sectional area in slabs, is**

a) 0.12%

b) 0.15%

c) 0.18%

d) 0.20%

**Q13.High strength concrete is used in prestressed member**

a) To overcome bursting stresses at the ends

b) To provide high bond stresses

c) To overcome cracks due to shrinkage

d) All the above

**Q14.The radius of a bar bend to form a hook, should not be less than**

a) Twice the diameter

b) Thrice the diameter

c) Four times the diameter

d) Five times the diameter

**Q15.In a simply supported slab the minimum spacing of distribution reinforcement, should be four times the effective thickness of the slab or**

a) 30 cm

b) 40 cm

c) 50 cm

d) 60 cm

**Q16.If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied**

a) 0.2

b) 0.3

c) 0.4

d) 0.5

**Q17.Steel beam theory is used for**

a) Design of simple steel beams

b) Steel beams encased in concrete

c) Doubly reinforced beams ignoring compressive stress in concrete

d) Beams if shear exceeds 4 times allowable shear stress

**Q18.The advantage of reinforced concrete, is due to**

a) Fire-resisting and durability

b) Economy because of less maintenance cost

c) Moulding in any desired shape

d) All the above

**Q19.The shear reinforcement in R.C.C. is provided to resist**

a) Vertical shear

b) Horizontal shear

c) Diagonal compression

d) Diagonal tension

**Q20.According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than**

a) 20 cm

b) 30 cm

c) 40 cm

d) 50 cm

**Part 1: List for questions and answers of Structural Design**

Q1. Answer: c

Q2. Answer: d

Q3. Answer: c

Q4. Answer: b

Q5. Answer: c

Q6. Answer: a

Q7. Answer: b

Q8. Answer: c

Q9. Answer: d

Q10. Answer: d

Q11. Answer: c

Q12. Answer: b

Q13. Answer: d

Q14. Answer: a

Q15. Answer:

Q16. Answer: d

Q17. Answer: c

Q18. Answer: d

Q19. Answer: d

Q20. Answer: b