MCQOPTIONS
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MCQOPTIONS
This section includes 82 Mcqs, each offering curated multiple-choice questions to sharpen your Java knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For M20 Grade of concrete, modular ratio would be: |
| A. | 13.23 |
| B. | 15.54 |
| C. | 12.89 |
| D. | 11.56 |
| Answer» B. 15.54 | |
| 2. |
Dead load comprises of: - |
| A. | Permanently attached loads |
| B. | Temporarily attached loads |
| C. | Permanent as well as temporary loads |
| D. | Snow load |
| Answer» B. Temporarily attached loads | |
| 3. |
In a spherical dome subjected to concentrated lead at crown or uniformly distributed load, the meridional force is always |
| A. | zero |
| B. | tensile |
| C. | compressive |
| D. | tensile or compressive |
| Answer» D. tensile or compressive | |
| 4. |
As compared to the working stress method of design, the limit state method of design premises that the concrete can admit |
| A. | A lower stress level |
| B. | A higher stress level |
| C. | Occasionally higher, but usually lower, stress level |
| D. | Only the same stress level |
| Answer» C. Occasionally higher, but usually lower, stress level | |
| 5. |
As per IS 456-2000 for the design of reinforced concrete beam, the maximum allowable shear stress (τcmax) depends on the: |
| A. | grade of concrete and grade of steel |
| B. | grade of concrete only |
| C. | grade of steel only |
| D. | grade of concrete and percentage of reinforcement |
| Answer» C. grade of steel only | |
| 6. |
Evaluate the tensile strength of concrete of grade M40. |
| A. | 4.42 N/mm2 |
| B. | 4.70 N/mm2 |
| C. | 4.14 N/mm2 |
| D. | 4.95 N/mm2 |
| Answer» B. 4.70 N/mm2 | |
| 7. |
If p is the net downward pressure per unit area, the maximum negative bending moment near counterforts will be: |
| A. | \(\dfrac{(pl^2)}{12}\) |
| B. | \(\dfrac{(pl^2)}{24}\) |
| C. | \(\dfrac{(pl^3)}{24}\) |
| D. | \(\dfrac{(pl^4)}{8}\) |
| E. | \(\dfrac{(pl^3)}{48}\) |
| Answer» B. \(\dfrac{(pl^2)}{24}\) | |
| 8. |
In the design of pre-stressed concrete structures, which of the following limit states will qualify as limit states will qualify as the limit states of serviceability?1. Flexural2. Shear3. Deflection4. Cracking |
| A. | 1 and 2 only |
| B. | 3 and 4 only |
| C. | 1 and 4 only |
| D. | 2 and 3 only |
| Answer» C. 1 and 4 only | |
| 9. |
For structural purpose, the minimum grade of concrete as per the code is: |
| A. | M40 |
| B. | M20 |
| C. | M60 |
| D. | M15 |
| Answer» C. M60 | |
| 10. |
Alligator cracking is mainly due to |
| A. | Fatigue |
| B. | Foundation failure |
| C. | Poor subgrade |
| D. | Excessive bitumen |
| E. | Bitumen deficiency |
| Answer» B. Foundation failure | |
| 11. |
A load value obtained by multiplying the characteristic load with load factor is known as: |
| A. | Dead load |
| B. | Designed load |
| C. | Fatigue load |
| D. | Design spectrum |
| Answer» C. Fatigue load | |
| 12. |
Ordinary moment resisting frames should not be used in seismic: |
| A. | zones IV, V |
| B. | zone II |
| C. | zone III with importance factor greater than I |
| D. | zone II, III |
| E. | can used in all 5 zones |
| Answer» B. zone II | |
| 13. |
Creep coefficient at the age of 7-days loading is: |
| A. | 2.2 |
| B. | 1.6 |
| C. | 1.1 |
| D. | 0.9 |
| Answer» B. 1.6 | |
| 14. |
Maximum reinforcement in a beam of width b and depth D should not be greater than __________. |
| A. | 0.06 b D |
| B. | 0.08 b D |
| C. | 0.05 b D |
| D. | 0.04 b D |
| Answer» E. | |
| 15. |
Cracks that are developed due to incorrect design and overloading on soil are called as_________. |
| A. | diagonal cracks |
| B. | vertical cracks |
| C. | structural cracks |
| D. | non-structural cracks |
| Answer» D. non-structural cracks | |
| 16. |
In surface irrigation, water is distributed across the land by |
| A. | gravity |
| B. | pump |
| C. | Both (1) and (2) |
| D. | None of the above |
| Answer» B. pump | |
| 17. |
For a reinforced concrete beam with M 20 concrete with Fe 415 steel, the working moment corresponding to ‘balanced failure’ by the Limit Sate Method of Design is A times of the relatable magnitude of the working moment computed by the Working Stress Method. This value of A is nearly |
| A. | 1 |
| B. | 1.5 |
| C. | 2 |
| D. | 2.5 |
| Answer» D. 2.5 | |
| 18. |
If the characteristic cube compressive strength of concrete is 36 N/mm2, then the flexural tensile strength of the concrete is |
| A. | 6.0 N/mm2 |
| B. | 5.4 N/mm2 |
| C. | 4.8 N/mm2 |
| D. | 4.2 N/mm2 |
| Answer» E. | |
| 19. |
Maximum allowed deflection in a simply supported RC beam (span, L) under uniformly distributed load including long term elastic and shrinkage effect is: |
| A. | \(\frac{L}{{350}}\) |
| B. | \(\frac{L}{{250}}\) |
| C. | \(\frac{L}{{200}}\) |
| D. | \(\frac{L}{{175}}\) |
| Answer» C. \(\frac{L}{{200}}\) | |
| 20. |
As per Indian Standard specifications, standard concrete is designated into |
| A. | 3 grades |
| B. | 5 grades |
| C. | 7 grades |
| D. | 10 grades |
| Answer» D. 10 grades | |
| 21. |
Consider the following statements:1. Modulus of Elasticity of concrete increases with increase in compressive strength of concrete.2. Brittleness of concrete increases with decrease in compressive strength of concrete.3. Shear strength of concrete increase with increase in compressive strength of concrete.Which of the above statements are correct? |
| A. | 1 and 2 only |
| B. | 1, 2 and 3 |
| C. | 1 and 3 only |
| D. | 2 and 3 only |
| Answer» D. 2 and 3 only | |
| 22. |
For a wall, 36 m long and having an effective height of 5 m when designed according to empirical method and subjected only to in-plane vertical load, the minimum thickness shall be |
| A. | 500 |
| B. | 167 |
| C. | 250 |
| D. | 333 |
| E. | 417 |
| Answer» C. 250 | |
| 23. |
If the estimated modulus of elasticity is 30 GPa, then the probable variation (according to IS 456) of the actual values (in GPa) could be between |
| A. | 27 - 33 |
| B. | 24 - 36 |
| C. | 25.5 - 34.5 |
| D. | 28.5 - 31.5 |
| E. | 25 - 35 |
| Answer» C. 25.5 - 34.5 | |
| 24. |
In a reinforced concrete section, shear stress distribution is diagrammatically |
| A. | Wholly Parabolic |
| B. | Wholly Rectangular |
| C. | Parabolic above NA and Rectangular below NA |
| D. | Rectangular above NA and Parabolic below NA |
| Answer» D. Rectangular above NA and Parabolic below NA | |
| 25. |
In the reinforced beam section shown in the figure (not drawn to scale), the nominal cover provided at the bottom of the beam as per IS 456-2000, is |
| A. | 36 mm |
| B. | 50 mm |
| C. | 30 mm |
| D. | 42 mm |
| Answer» D. 42 mm | |
| 26. |
Limit state of serviceability of prestressed concrete sections should satisfy ________. |
| A. | Cracking, deflection and maximum compression |
| B. | Cracking only |
| C. | Deflection and cracking |
| D. | Deflection and maximum compression |
| Answer» B. Cracking only | |
| 27. |
In bending, the maximum strain in concrete at the outer-most compression fibre is taken as_____ |
| A. | 0.002 |
| B. | 0.0025 |
| C. | 0.0035 |
| D. | None of these |
| Answer» D. None of these | |
| 28. |
Because of large stream discharge, ______ irrigation is more suitable for permeable soil. |
| A. | Free flooding |
| B. | Check flooding |
| C. | Check basin |
| D. | Furrow |
| Answer» C. Check basin | |
| 29. |
An RCC structure with fundamental time period of 1.2 sec vibrates at a forcing frequency of 10 rad/sec. The maximum dynamic displacement is X% of static displacement. The Value of X is |
| A. | 10.1 |
| B. | 28.9 |
| C. | 37.7 |
| D. | 50.2 |
| Answer» D. 50.2 | |
| 30. |
In the border strip method of irrigation, the width of the strip is |
| A. | 5 – 10 m |
| B. | 10 – 20 m |
| C. | 20 – 30 m |
| D. | 25 – 30 m |
| Answer» C. 20 – 30 m | |
| 31. |
Empirical relationship between tensile strength and compressive strength of concrete is given by: |
| A. | Tensile strength = 0.47*fck |
| B. | fck = 0.47*tensile strength |
| C. | Tensile strength = k (compressive strength)n |
| D. | \(\rm K=\dfrac{compressive \ strength}{tensile \ strength \ *fck}\) |
| Answer» D. \(\rm K=\dfrac{compressive \ strength}{tensile \ strength \ *fck}\) | |
| 32. |
According to IS : 875 Part 3, the design wind speed acting on industrial roof is estimated based on the basic wind speed by multiplying it by factors K1, K2 and K2, where K1 is called |
| A. | Terrain height factor |
| B. | Structure size factor |
| C. | Topography factor |
| D. | Risk coefficient |
| Answer» E. | |
| 33. |
For limit state of collapse, the partial safety factors recommended by IS 456 : 2000 for estimating the design strength of concrete and reinforcing steel are respectively- |
| A. | 1.5 and 1.15 |
| B. | 1.0 and 1.0 |
| C. | 1.15 and 1.5 |
| D. | 1.5 and 1.0 |
| Answer» B. 1.0 and 1.0 | |
| 34. |
For a column member, as per IS 456 -2000 the cross-sectional area of longitudinal reinforcement should not be more than: |
| A. | 8 percent of the gross sectional area |
| B. | 12 percent of the gross sectional area |
| C. | 6 percent of the gross sectional area |
| D. | 10 percent of the gross sectional area |
| E. | 9 percent of the gross sectional area |
| Answer» D. 10 percent of the gross sectional area | |
| 35. |
As per IS-456:2000, cracking of concrete in tension zone cannot be avoided but can be limited by1. Adhering to the codal requirements of minimum steel area2. Proper and prolonged curing of concrete3. Increasing water cement ratio to increase workability |
| A. | 1 and 2 only |
| B. | 1 and 3 only |
| C. | 2 and 3 only |
| D. | 1, 2 and 3 |
| Answer» B. 1 and 3 only | |
| 36. |
Cover in reinforcement is essential to ______ |
| A. | Not to be seen by others what reinforcement provided |
| B. | To protect from external harmful substances |
| C. | Aesthetic view |
| D. | If not embedded, may bend due to compression |
| Answer» C. Aesthetic view | |
| 37. |
Minimum spacing between horizontal parallel reinforcement bars of different diameters should not be less than: |
| A. | One diameter of thinner bar |
| B. | One diameter of a thicker bar |
| C. | Sum of the diameters of the thinner and thicker bars |
| D. | Twice the diameter of the thinner bar |
| Answer» C. Sum of the diameters of the thinner and thicker bars | |
| 38. |
Consider the following cases in the design of reinforced concrete members in flexure:1. Over-reinforced section2. Tension failure3. Compression failure4. Under-reinforced sectionWhich of the above cases are considered for safe design of R.C. members in flexure? |
| A. | 1 and 2 only |
| B. | 2 and 4 only |
| C. | 3 and 4 only |
| D. | 1 and 3 only |
| Answer» C. 3 and 4 only | |
| 39. |
In case of reinforced concrete, what is the minimum grade of concrete that should be used in sea water or when exposed directly along the sea-coast? |
| A. | M15 |
| B. | M20 |
| C. | M25 |
| D. | M30 |
| Answer» E. | |
| 40. |
IS 1893–2002 is related to _______ resistant design of structures. |
| A. | Fire |
| B. | Termite |
| C. | Earthquake |
| D. | Cyclone |
| Answer» D. Cyclone | |
| 41. |
As per BIS 456-2000 (reaffirmed 2005), the minimum grade of concrete, with normal weight aggregate of 20 mm nominal maximum size, specified for a severe exposure condition is |
| A. | M 20 |
| B. | M 25 |
| C. | M 30 |
| D. | M 35 |
| Answer» D. M 35 | |
| 42. |
A reinforced concrete (RC) beam with width of 250 mm and effective depth of 400 mm is reinforced with Fe415 steel. As per the provisions of IS 456-2000, the minimum and maximum amount of tensile reinforcement (expressed in mm2) for the section are, respectively |
| A. | 250 and 3500 |
| B. | 205 and 4000 |
| C. | 270 and 2000 |
| D. | 300 and 2500 |
| Answer» C. 270 and 2000 | |
| 43. |
For limit state of collapse flexure, the maximum strain in concrete at the outermost compression fibre is taken equal to |
| A. | 0.002 |
| B. | 0.02 |
| C. | 0.0035 |
| D. | 0.035 |
| Answer» D. 0.035 | |
| 44. |
According to IS 456-2000, the Maximum compressive strain at the highly compressed extreme fibre in concrete subjected to axial compression and bending and when there is no tension on the section shall be |
| A. | 0.0035 |
| B. | 0.0035 minus 0.75 strain at the least compressed fibre |
| C. | 0.002 |
| D. | 0.002 minus 0.75 strain at the least compressed fibre |
| Answer» C. 0.002 | |
| 45. |
For beams the maximum area of tension reinforcement with HYSD bars shall not exceed: |
| A. | 0.04 bD |
| B. | 0.12 bD |
| C. | 0.06 bD |
| D. | 0.015 bD |
| E. | 0.22 bD |
| Answer» B. 0.12 bD | |
| 46. |
According to IS 456, when assessing the strength of a structure or structural member for the limit state of collapse, the value of partial saftey factor for concrete (material) should be |
| A. | 1.15 |
| B. | 2 |
| C. | 2.5 |
| D. | 1.5 |
| E. | 3 |
| Answer» E. 3 | |
| 47. |
A reinforced cantilever beam of span 4 m has a cross-section of 150 x 500 mm. If checked for lateral stability and deflection, the beam will ________. |
| A. | Fail in deflection only |
| B. | Fail in lateral stability only |
| C. | Fail in both deflection and lateral stability |
| D. | Satisfy the requirements of deflection and lateral stability |
| Answer» D. Satisfy the requirements of deflection and lateral stability | |
| 48. |
In furrow irrigation the depth of furrows from ground level is kept as: |
| A. | 40 to 50 cm |
| B. | 5 to 10 cm |
| C. | 10 to 20 cm |
| D. | 20 to 30 cm |
| Answer» E. | |
| 49. |
As per IS 456:2000, the cross-sectional area of longitudinal reinforcement in a column shall NOT be: |
| A. | less than 1 per cent and more than 7 per cent of the gross sectional area |
| B. | less than 0.8 per cent and more than 6 per cent of the gross sectional area |
| C. | less than 1.2 per cent and more than 4 per cent of the gross sectional area |
| D. | less than 2 per cent and more than 8 per cent of the gross sectional area |
| E. | less than 4 per cent and more than 10 per cent of the gross sectional area |
| Answer» C. less than 1.2 per cent and more than 4 per cent of the gross sectional area | |
| 50. |
Minimum grade of concrete for designing RCC water tank is ______ |
| A. | M 15 |
| B. | M 20 |
| C. | M 25 |
| D. | M 30 |
| Answer» E. | |