MCQOPTIONS
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MCQOPTIONS
This section includes 122 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the permissible stress in steel in tension is 140 N/mm , then the depth of neutral axis for a singly reinforced rectangular balanced section will be |
| A. | 0.35 d |
| B. | 0.40 d |
| C. | 0.45 d |
| D. | dependent on grade of concrete also |
| Answer» C. 0.45 d | |
| 2. |
The internal dimensions of a ware house are 15 m 5.6 m, and the maximum height of piles is 2.70 m, the maximum number of bags to be stored in two piles, are |
| A. | 1500 bags |
| B. | 2000 bags |
| C. | 2500 bags |
| D. | 3000 bags |
| Answer» E. | |
| 3. |
For a continuous slab of 3 m 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is |
| A. | 50 mm |
| B. | 75 mm |
| C. | 100 mm |
| D. | 120 mm |
| Answer» C. 100 mm | |
| 4. |
If the size of panel in a flat slab is 6 m 6 m, then as per Indian Standard Code, the widths of column strip and middle strip are |
| A. | 3.0 m and 1.5 m |
| B. | 1.5 m and 3.0 m |
| C. | 3.0 m and 3.0 m |
| D. | 1.5 m and 1.5 m |
| Answer» D. 1.5 m and 1.5 m | |
| 5. |
The top diameter, bottom diameter and the height of a slump mould are: |
| A. | 10 cm, 20 cm, 30 cm |
| B. | 10 cm, 30 cm, 20 cm |
| C. | 20 cm, 10 cm, 30 cm |
| D. | 20 cm, 30 cm, 10 cm |
| Answer» B. 10 cm, 30 cm, 20 cm | |
| 6. |
An ordinary Portland cement when tested for its fineness, should not leave any residue on I.S.sieve No. 9, more than |
| A. | 5 % |
| B. | 10 % |
| C. | 15 % |
| D. | 20 % |
| Answer» C. 15 % | |
| 7. |
If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of aconcrete mixer of 150 litre capacity, is |
| A. | 15,900 litres |
| B. | 16,900 litres |
| C. | 17,900 litres |
| D. | 18,900 litres |
| Answer» E. | |
| 8. |
Percentage of pozzolanic material containing clay upto 80% used for the manufacture of pozzolanacement, is |
| A. | 30 % |
| B. | 40 % |
| C. | 50 % |
| D. | 60 % |
| Answer» B. 40 % | |
| 9. |
The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 forobtaining the aggregates of F.M. 5.4, is |
| A. | 30 % |
| B. | 40 % |
| C. | 50 % |
| D. | 60 % |
| Answer» D. 60 % | |
| 10. |
Maximum percentage reinforcement in case of slabs is limited to |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 11. |
For a continuous slab of 3 m × 3.5 m size, the minimum overall depth of slab to satisfy verticaldeflection limits is |
| A. | 50 mm |
| B. | 75 mm |
| C. | 100 mm |
| D. | 120 mm |
| Answer» C. 100 mm | |
| 12. |
The process of proper and accurate measurement of concrete ingredients for uniformity ofproportion, is known |
| A. | grading |
| B. | curing |
| C. | mixing |
| D. | batching |
| Answer» E. | |
| 13. |
If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentageof water is, |
| A. | 20 % |
| B. | 25 % |
| C. | 30 % |
| D. | 35 % |
| Answer» C. 30 % | |
| 14. |
The most commonly used admixture which prolongs the setting and hardening time is |
| A. | gypsum |
| B. | calcium chloride |
| C. | sodium silicate |
| D. | all of the above |
| Answer» B. calcium chloride | |
| 15. |
A T-shaped retaining wall mainly consists of |
| A. | one cantilever |
| B. | two cantilevers |
| C. | three cantilevers |
| D. | four cantilevers |
| Answer» D. four cantilevers | |
| 16. |
The rock which is not calcareous, is: |
| A. | lime stone |
| B. | chalk |
| C. | laterite |
| D. | none of these |
| Answer» E. | |
| 17. |
In working stress design, permissible bond stress in the case of deformed bars is more than that inplain bars by |
| A. | 10 % |
| B. | 20 % |
| C. | 30 % |
| D. | 40 % |
| Answer» E. | |
| 18. |
In a spherical dome subjected to concentrated load at crown or uniformly distributed load, themeridional force is always |
| A. | zero |
| B. | tensile |
| C. | compressive |
| D. | tensile or compressive |
| Answer» D. tensile or compressive | |
| 19. |
Maximum distance between expansion joints in structures as per IS: 456 1978 is |
| A. | 20 m |
| B. | 30 m |
| C. | 45 m |
| D. | 60 m |
| Answer» D. 60 m | |
| 20. |
The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl isgiven by |
| A. | fcr - fcs = fcl |
| B. | fcr > fcs > fcl |
| C. | fcr < fcs < fcl |
| D. | fcs > fcr > fcl |
| Answer» C. fcr < fcs < fcl | |
| 21. |
If X, Y and Z are the fineness modulli of coarse, fine and combined aggregates, the percentage (P)of fine aggregates to combined aggregates, is |
| A. | p = [(z - x)/(z - y)] × 100 |
| B. | p = [(x - z)/(z - y)] × 100 |
| C. | p = [(x - z)/(z + y)] × 100 |
| D. | p = [(z + x)/(z - y)] × 100 |
| Answer» C. p = [(x - z)/(z + y)] × 100 | |
| 22. |
If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then thebeam is called |
| A. | balanced beam |
| B. | under-reinforced beam |
| C. | over-reinforced beam |
| D. | none of the above |
| Answer» D. none of the above | |
| 23. |
If the storey height is equal to length of RCC wall, the percentage increase in strength is |
| A. | 0 |
| B. | 10 |
| C. | 20 |
| D. | 30 |
| Answer» C. 20 | |
| 24. |
In a pile of length , the points of suspension from ends for lifting it are located at |
| A. | 0.207 l |
| B. | 0.25 l |
| C. | 0.293 l |
| D. | 0.333 l |
| Answer» B. 0.25 l | |
| 25. |
To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at atemperature between |
| A. | 1100° and 1200°c |
| B. | 1200° and 1300°c |
| C. | 1300° and 1400°c |
| D. | 1400° and 1500°c |
| Answer» E. | |
| 26. |
An aggregate which passes through 25 mm I.S. sieve and is retained on 20 mm sieve, is said to beflaky if its least dimension is less than |
| A. | 22.5 mm |
| B. | 18.5 mm |
| C. | 16.5 mm |
| D. | 13.5 mm |
| Answer» E. | |
| 27. |
A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth(1/D) is less than |
| A. | 1.5 |
| B. | 2.0 |
| C. | 2.5 |
| D. | 3.0 |
| Answer» D. 3.0 | |
| 28. |
Modulus of elasticity of steel as per IS: 4561978 shall be taken as |
| A. | 20 kn/cm² |
| B. | 200 kn/cm² |
| C. | 200 kn/mm² |
| D. | 2 × 106 n/cm² |
| Answer» D. 2 × 106 n/cm² | |
| 29. |
Cube strength of controlled concrete to be used for pre-tensioned and post-tensioned workrespectively should not be less than |
| A. | 35 mpa and 42 mpa |
| B. | 42 mpa and 35 mpa |
| C. | 42 mpa and 53 mpa |
| D. | 53 mpa and 42 mpa |
| Answer» C. 42 mpa and 53 mpa | |
| 30. |
According to Whitney's theory, ultimate strain of concrete is assumed to be |
| A. | 0.03 % |
| B. | 0.1 % |
| C. | 0.3 % |
| D. | 3 % |
| Answer» D. 3 % | |
| 31. |
Sands of zone I are: |
| A. | course |
| B. | medium |
| C. | medium to fine |
| D. | fine |
| Answer» B. medium | |
| 32. |
If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose watercement ratio is 0.6, the weight of water required for harsh mix, is |
| A. | 8 kg |
| B. | 10 kg |
| C. | 12 kg |
| D. | 14 kg |
| Answer» D. 14 kg | |
| 33. |
The percentage of reinforcement in case of slabs, when high strength deformed bars are used isnot less than |
| A. | 0.15 |
| B. | 0.12 |
| C. | 0.30 |
| D. | 1.00 |
| Answer» C. 0.30 | |
| 34. |
If a beam fails in bond, then its bond strength can be increased most economically by |
| A. | increasing the depth of beam |
| B. | using thinner bars but more in number |
| C. | using thicker bars but less in number |
| D. | providing vertical stirrups |
| Answer» C. using thicker bars but less in number | |
| 35. |
The shuttering of a hall measuring 4 m × 5 m, can be removed after |
| A. | 5 days |
| B. | 7 days |
| C. | 10 days |
| D. | 14 days |
| Answer» C. 10 days | |
| 36. |
Poisson's ratio for concrete |
| A. | remains constant |
| B. | increases with richer mixes |
| C. | decreases with richer mixes |
| D. | none of the above |
| Answer» C. decreases with richer mixes | |
| 37. |
Normally pre-stressing wires are arranged in the |
| A. | upper part of the beam |
| B. | lower part of the beam |
| C. | center |
| D. | anywhere |
| Answer» C. center | |
| 38. |
How long will it take for the concrete to achieve 100% of its strength? |
| A. | 7 days |
| B. | 14 days |
| C. | 21 days |
| D. | 28 days |
| Answer» E. | |
| 39. |
The bulk density of aggregates does not depend upon: |
| A. | size and shape of aggregates |
| B. | specific gravity of aggregates |
| C. | grading of aggregates |
| D. | size and shape of the container |
| Answer» E. | |
| 40. |
For a cantilever of effective depth of 0.5 m, the maximum span to satisfy vertical deflection limit is |
| A. | 3.5 m |
| B. | 4 m |
| C. | 4.5 m |
| D. | 5 m |
| Answer» B. 4 m | |
| 41. |
Minimum grade of concrete to be used in reinforced concrete as per IS: 4561978 is |
| A. | m 15 |
| B. | m 20 |
| C. | m 10 |
| D. | m 25 |
| Answer» B. m 20 | |
| 42. |
The critical section for finding maximum bending moment for footing under masonry wall islocated |
| A. | at the middle of the wall |
| B. | at the edge of the wall |
| C. | halfway between the middle and edge of the wall |
| D. | at a distance equal to effective depth of footing from the edge of the wall |
| Answer» D. at a distance equal to effective depth of footing from the edge of the wall | |
| 43. |
For a simply supported beam of span 15 m, the minimum effective depth to satisfy the verticaldeflection limits should be |
| A. | 600 mm |
| B. | 750 mm |
| C. | 900 mm |
| D. | more than 1 m |
| Answer» C. 900 mm | |
| 44. |
For a concrete mix 1:3:6 and water cement ratio 0.6 both by weight, the quantity of waterrequired per bag, is |
| A. | 10 kg |
| B. | 12 kg |
| C. | 14 kg |
| D. | 16 kg |
| Answer» D. 16 kg | |
| 45. |
is the span) |
| A. | l/3 |
| B. | l/5 |
| C. | l/7 |
| D. | l/10 |
| Answer» D. l/10 | |
| 46. |
According to IS: 4561978, minimum slenderness ratio for a short column is |
| A. | less than 12 |
| B. | less than 18 |
| C. | between 18 and 24 |
| D. | more than 24 |
| Answer» B. less than 18 | |
| 47. |
If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singlyreinforced rectangular balanced section will be |
| A. | 0.35 d |
| B. | 0.40 d |
| C. | 0.45 d |
| D. | dependent on grade of concrete also |
| Answer» C. 0.45 d | |
| 48. |
Specified compressive strength of concrete is obtained from cube tests at the end of |
| A. | 3 days |
| B. | 7 days |
| C. | 21 days |
| D. | 28 days |
| Answer» E. | |
| 49. |
The process of mixing, transporting, placing and compacting concrete using Ordinary Port landCement should not take more than |
| A. | 30 minutes |
| B. | 40 minutes |
| C. | 60 minutes |
| D. | 90 minutes |
| Answer» B. 40 minutes | |
| 50. |
The internal dimensions of a ware house are 15 m × 5.6 m, and the maximum height of piles is2.70 m, the maximum number of bags to be stored in two piles, are |
| A. | 1500 bags |
| B. | 2000 bags |
| C. | 2500 bags |
| D. | 3000 bags |
| Answer» E. | |