MCQOPTIONS
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MCQOPTIONS
This section includes 1888 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
Due to some point load anywhere on a fixed beam, the maximum free bending moment is . The sum of fixed end moment is |
| A. | 1.5 |
| B. | 2.0 |
| C. | 3.0 |
| Answer» B. 2.0 | |
| 252. |
Which of the following pairs in respect of ordinary Portland cement (OPC) are correctly matched1. Initial setting time....30 minutes2. Final setting time....10 hours3. Normal consistency....10%Select the correct answer from the codes given below : |
| A. | 1, 2 and 3 |
| B. | 2 and 3 |
| C. | 1 and 2 |
| D. | 1 and 3 |
| Answer» D. 1 and 3 | |
| 253. |
A bar of length is uniformly tapering from a diameter at one and to a diameter at the other end. The bar is subjected to an axial tensile loads. What is the total elongation (where = Young's modulus of elasticity. ) |
| A. | 4 + |
| Answer» B. | |
| 254. |
For a state of plane stress σ = σ = 40 , and σ = σ = 20. What are the values of the maximum in-plane shearing stress and absolute maximum shearing stress ? |
| A. | (± 10, 20) |
| B. | (± 10, 10) |
| C. | (± 20, 10) |
| D. | (± 20, 20) |
| Answer» B. (± 10, 10) | |
| 255. |
Consider the following statements :1. Pumps in series operation allow the head to increase.2. Pumps in series operation increase the flow rate.3. Pumps ill parallel operation increase the flow rate.4. Pumps in parallel operation allow the head to increase.Which of these statements are correct ? |
| A. | 1 and 3 |
| B. | 1 and 4 |
| C. | 2 and 4 |
| D. | 3 and 4 |
| Answer» B. 1 and 4 | |
| 256. |
A reinforced concrete beam is designed for the limit states of collapse in flexure a shear. Which of the following limit states of serviceability have to be checked ? 1. Deflection 2. Cracking 3. Durability Select the correct answer using the codes given below : |
| A. | 1 alone |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1, 2 and 3 |
| Answer» D. 1, 2 and 3 | |
| 257. |
A T-beam roof section has the following particulars :Thickness of slab 100 mmWidth of rib 300 mmDepth of beam 500 mmCentre to centre distance of beams 3.0 mEffective span of beams 6.0 mDistance between points of contraflexure is 3.60 m.The effective width of flange of the beam is |
| A. | 3000 mm |
| B. | 1900 mm |
| C. | 1600 mm |
| D. | 1500 mm |
| Answer» E. | |
| 258. |
A circular plate 100 mm diameter is welded to another plate by means of 6 mm fillet weld. If the permissible shearing stress in the weld equals 10 kg/mm, then the greatest twisting moment that can be resisted by the weld will be |
| A. | 424 π kg.m |
| B. | 300 π kg.m |
| C. | 212 π kg.m |
| D. | 60 π kg.m |
| Answer» D. 60 π kg.m | |
| 259. |
Consider the following statements in respect of the critical depth of flow in a prismatical rectangular channel:1. For known specific emergy, discharge is minimum.2. For known discharge, the specific energy is minimum.Which of the statements given above is/are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | neither 1 nor 2 |
| Answer» D. neither 1 nor 2 | |
| 260. |
Consider the following statements :Curing of concrete is necessary because(a) concrete needs more water for chemical reaction(b) it is necessary to protect the water initially mixed in concrete from being lost during evaporation(c) penetration of surrounding water increases the strength of concrete Which of the statements given above is/are correct ? |
| A. | 1, 2 and 3 |
| B. | 1 and 3 only |
| C. | 2 only |
| D. | 3 only |
| Answer» D. 3 only | |
| 261. |
Given that for a soil deposit, = earth pressure coefficient at rest, = active earth pressure coefficient, = passive earth pressure coefficient and = Poisson's ratio, the value of (1 - μ) is given by |
| A. | 1/ |
| Answer» E. | |
| 262. |
Consider the following statements :1. Mastic asphalt is a mixture of hard grade bitumen or blown bitumen, minerals filter and fine aggregates.2. % of binder content in the mastic asphalt is 17-20 percent by weight of the aggregates. Which of the statements given above is/are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 263. |
Which of the following should be employed to provide lateral support to the beams ?1. Bracing of compression flanges.2. Shear connectors.3. Bracing of tension flanges4. Embedding compression flanges into R.C.C. slab.Select the correct answer using the codes given below : |
| A. | 1 only |
| B. | 1 and 4 |
| C. | 2 and 3 |
| D. | 1, 2 and 4 |
| Answer» E. | |
| 264. |
If a circular shaft is subjected to a torque and a bending moment '' the ratio of the maximum shear stress to the maximum bending stress is given by : |
| A. | 2 |
| Answer» C. | |
| 265. |
Force in the member of the frame shown in the given figure will be: |
| A. | zero |
| B. | |
| Answer» B. | |
| 266. |
A sewer is laid from a manhole to a manhole , 250 m apart along a downward gradient of 1 in 250. If the reduced level of the invert at is 205.75 m and the height of the boring rod is 3 m, then, reduced level of the sight rail at , is |
| A. | 202.75 m |
| B. | 206.75 m |
| C. | 208.75 m |
| D. | 211.75 m |
| Answer» C. 208.75 m | |
| 267. |
A rectangular channel carries a discharge of 5 m/s. The channel is 2 m wide. What is the critical depth of the flow ? |
| A. | 1.25 m |
| B. | 1.07 m |
| C. | 0.565 m |
| D. | 0.86 m |
| Answer» E. | |
| 268. |
The following methods are used for structural analysis :1. Macaulay method 2. Column analogy method3. Kani's method 4. Method of sectionsThose used for indeterminate structural analysis would include |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 2 and 3 |
| D. | 2, 3 and 4 |
| Answer» D. 2, 3 and 4 | |
| 269. |
A right-angled triangular channel, symmetrical in section about the vertical, carries a discharge of 5 m /s with a velocity of 1.25 m/s. What is the approximate value of the Froude number of the flow ? |
| A. | 0.3 |
| B. | 0.4 |
| C. | 0.5 |
| D. | 0.6 |
| Answer» C. 0.5 | |
| 270. |
The given figure shows the arrow diagram for a particular project. The arrow '' is known as |
| A. | critical activity |
| B. | sub-critical activity |
| C. | logic arrow |
| D. | dummy activity |
| Answer» D. dummy activity | |
| 271. |
Consider the following statements :1. The standard penetration test is a reliable method for measuring the relative density of granular soils.2. For a sand having the same relative density, N-values remain the same at all depths.3. For a sand having the same relative density, N-values are different at different depths.Which of the statements given above is/are correct ? |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | only 3 |
| D. | 1 and 3 |
| Answer» E. | |
| 272. |
Which one of the following statements is correct ?The portal method of structural analysis is generally suitable for |
| A. | tall buildings |
| B. | low-rise buildings |
| C. | low-rise buildings with uniform framing |
| D. | low-rise buildings with non-uniform framing. |
| Answer» E. | |
| 273. |
A cantilever beam '' with rectangular cross-section is subjected to a concentrated load at its free end. If width and depth of another cantilever beam '' are twice those of beam , then the deflection at free end of the beam '' as compared to that of '' will be |
| A. | 6.25% |
| B. | 14% |
| C. | 23.6% |
| D. | 28% |
| Answer» B. 14% | |
| 274. |
Consider the following statements regarding specific energy of flow in an open channel :1. There is only one specific energy curve for a given channel.2. Alternate depths are the depths of flow at which the specific energy is the same.3. Critical flow occurs when the specific energy is minimum.Of these statements : |
| A. | 1 and 2 are correct |
| B. | 1 and 3 are correct |
| C. | 2 and 3 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» E. | |
| 275. |
A bar of square section is subjected to a pull of 10000 kg. If the maximum allowable shear stress on any section is 500 kg/cm, then the side of the square section will be |
| A. | cm |
| B. | cm |
| C. | cm |
| D. | cm |
| Answer» C. cm | |
| 276. |
Consider the following statement :1. Hydraulic gradient required to initiate "quick" condition is independent of the ratio of volume of voids of solids in a soil mass.2. Initiation of piping under hydraulic structures can be prevented by increasing the length of flow path of water.3. Seepage pressure is independent of the coefficient of permeability. Of these statement : |
| A. | 1, 2 and 3 are correct |
| B. | 1 and 2 are correct |
| C. | 1 and 3 are correct |
| D. | 2 and 3 are correct |
| Answer» E. | |
| 277. |
Which of the following waste disposal tasks are achieved by a septic tank with its dispersion tranch ?1. Aerobic sluge digestion2. Settling and anaerobic sludge digestion3. Anaerobic sewage stabilisation4. Bio-oxidation of effluentSelect the correct answer using the codes given below : |
| A. | 1 and 3 |
| B. | 3 and 4 |
| C. | 2 and 4 |
| D. | 1 and 4 |
| Answer» D. 1 and 4 | |
| 278. |
In a simply supported beam AB of span L, the midpoint is C. In case-1, the beam is loaded by a central concentrated load . In case-2, the beam is subjected to a U.D.L. of intensity such that = . The ratio of central deflection in case-1 to that in case-2 is |
| A. | 5/3 |
| B. | 3/5 |
| C. | 5/8 |
| D. | 8/5 |
| Answer» E. | |
| 279. |
Consider the following statements :I: To insert a 28 mm nominal diameter rivet, 29.5 mm rivet hole is made.II: Provision is made to allow temperature expansion of the bolt. |
| A. | both I and II are true |
| B. | I is true but II is false |
| C. | I is false but II is true |
| D. | both I and II are false |
| Answer» D. both I and II are false | |
| 280. |
Which of the following air pollutants is/are responsible for photochemical smog ?1. Oxides of nitrogen2. Ozone3. Unburnt hydrocarbons4. Carbon monoxideSelect the correct answer from the codes given below : |
| A. | 1 alone |
| B. | 2, 3 and 4 |
| C. | 1, 3 and 4 |
| D. | 1 and 3 |
| Answer» E. | |
| 281. |
Consider the following statements :Excess of sulphur in steel results in1. red shortness2. segregation 3. coldshortness.Of these statements : |
| A. | 1 alone is correct |
| B. | 2 alone is correct |
| C. | 2 and 3 are correct |
| D. | 1 and 2 are correct |
| Answer» B. 2 alone is correct | |
| 282. |
Consider the following statements :Some amount of chlorides is allowed in drinking water because1. it helps in killing bacteria.2. small quantity of chlorides adds to the taste3. it is not injurious to human health.4. it is not economical to remove it completely.Which of these statements are correct ? |
| A. | 1, 2 and 4 |
| B. | 1, 2 and 3 |
| C. | 2, 3 and 4 |
| D. | 1, 3 and 4 |
| Answer» E. | |
| 283. |
Two different granular soils are placed in a permeameter tube and flow is allowed to take place under a constant total head. The total head and pressure head at point in centimeters, are respectively. |
| A. | 75, 75 |
| B. | 25, 75 |
| C. | 25, 25 |
| D. | 75, 25 |
| Answer» C. 25, 25 | |
| 284. |
A simply supported rectangular beam of span '' and depth '' carries a central load '' What ratio of maximum deflection to maximum bending stress is |
| A. | /6 |
| B. | 8 |
| C. | /48 |
| D. | /12 |
| Answer» B. 8 | |
| 285. |
When power shovels are operated under different site conditions (in terms of material handled), what is the correct sequence in the increasing order of the ouput for the following materials ?1. Well - blasted rock2. Hard and tough clay3. Poorly blasted rock4. Moist loam or sandSelect the correct answer using the code given below : |
| A. | 1 - 2 - 3 - 4 |
| B. | 1 - 4 - 3 - 2 |
| C. | 4 - 2 - 3 - 1 |
| D. | 4 - 3 - 1 - 2 |
| Answer» D. 4 - 3 - 1 - 2 | |
| 286. |
A cohesionless soil having an angle of shearing resistance of φ, is standing at a slope angle of . The factor of safety of the slope is tan |
| A. | tan i - tan φ |
| B. | tan φ - tan i |
| Answer» D. | |
| 287. |
A steel cable of 2 cm diameter is used to lift a load of 500π kg. Given that, = 2 x 106 kg/cm and the length of the cable is 10 m, the elongation of the cable due to the load will be |
| A. | 0.5 cm |
| B. | 0.25 |
| C. | 1 cm |
| D. | 1/π cm |
| Answer» C. 1 cm | |
| 288. |
Consider the following statements regarding tensile test diagrams for carbon steel with varying carbon contents :As the carbon content increases1. the ultimate strength of steel decreases 2. the elongation before fracture increases3. the ductility of the metal decreases 4. the ultimate strength increases.Of these statements : |
| A. | 3 and 4 are correct |
| B. | 1 and 3 are correct |
| C. | 1, 2 and 3 are correct |
| D. | 1 and 2 are correct |
| Answer» D. 1 and 2 are correct | |
| 289. |
The following steps are involved in arriving at a unit hydrograph.1. Estimating the surface runoff in depth.2. Estimating the surface runoff in volume.3. Separation of base flow.4. Dividing surface runoff ordinates by depth of runoff.The correct sequence of the steps is : |
| A. | 3 2 1 4 |
| B. | 2 3 4 1 |
| C. | 3 1 2 4 |
| D. | 4 3 2 1 |
| Answer» C. 3 1 2 4 | |
| 290. |
A flownet constructed to determine the seepage through an earth dam which is homogeneous but anisotropic, gave four flow channels and sixteen equipotential drops. The coefficients of permeability in the horizontal and vertical directions are 4 x 10- m/s and 1.0 x 10 m/s, respectively. If the storage head was 20 m, then the seepage per unit length of the dam (in m/s) would be |
| A. | 5 x 10 |
| B. | 10 x 10 |
| C. | 20 x 10 |
| D. | 40 x 10 |
| Answer» C. 20 x 10 | |
| 291. |
Two sources generate noise levels of 90 and 94 respectively. The cumulative effect of these two noise levels on the human ear is |
| A. | 184 |
| B. | 95.5 |
| C. | 94 |
| D. | 92 |
| Answer» C. 94 | |
| 292. |
Which of the following statements is/are true in relation to the term 'detention period' in a settling tank?1. It may be determined by introducing a dye in the inlet and timing its appearance at the outlet.2. Greater the detention period, greater the efficiency of removal of settleable matter.3. It is the time taken for any unit of water to pass through the setting basin.4. It is usually more than the flowthrough period.Select the correct answer using the codes given below : |
| A. | 1, 2, 3 and 4 |
| B. | 2, 3 and 4 |
| C. | 1 and 3 |
| D. | 4 alone |
| Answer» B. 2, 3 and 4 | |
| 293. |
If a soil sample of weight 0.18 kg having a volume of 10 m and dry unit wt. of 1600 kg/m is mixed with 0.02 kg of water then the water content in the sample will be |
| A. | 30% |
| B. | 25% |
| C. | 20% |
| D. | 15% |
| Answer» C. 20% | |
| 294. |
With '' variables and '' fundamental dimensions in a system, which one of the following statements relating to the application of the Buckingham's Pi Theorem is ? |
| A. | With experience, pi terms can be written simply by inspection of variables in a flow system |
| B. | Buckingham's pi theorem is not directly applicable in compressible flow problem |
| C. | Buckingham's pi theorem yields dimensionless pi terms given by the difference between the number of variables and the number of fundamental dimensions |
| D. | Buckingham's pi theorem reduces the number of variables by the number of fundamental dimensions involved. |
| Answer» C. Buckingham's pi theorem yields dimensionless pi terms given by the difference between the number of variables and the number of fundamental dimensions | |
| 295. |
If the line of sight between two stations and , on sea, and 80 km apart, makes tangent at point , then the minimum elevation of the signal required at (considering the coefficient of refraction "" = 0.08 and the mean radius of earth as 6400 km) will be |
| A. | 42 m |
| B. | 210 m |
| C. | 420 m |
| D. | 840 m |
| Answer» D. 840 m | |
| 296. |
Consider the following statements related to Los Angeles Abrasion test on aggregates :1. It evaluates hardness of source - rock2. It has a coefficient of variation of about 30 percentWhich of the statements given above is/are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» B. 2 only | |
| 297. |
A bar of uniform cross-section of 400 mm is loaded as shown in the figure. The stress at section 1-1 is |
| A. | 50 N/mm |
| B. | 100 N/mm |
| C. | 25 N/mm |
| D. | 200 N/mm |
| Answer» C. 25 N/mm | |
| 298. |
A close-coiled helical spring has 100 mm mean diameter and is mada of 20 turns to 10 mm diameter steel wire. The spring carries an axial load of 100 N Modulus of rigidity is 84 GPa. The shearing stress developed in the spring in N/mm is |
| A. | 120/π |
| B. | 160/π |
| C. | 100/π |
| D. | 80/π |
| Answer» E. | |
| 299. |
Consider the following statements pertaining to plane table survey :1. Two-point problem is solved by mechanical method.2. Three-point problem is solved by Bessel's method.3. In two point problem, auxiliary station is required.Of these statements : |
| A. | 1 and 2 are correct |
| B. | 1 and 3 arc correct |
| C. | 2 and 3 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» E. | |
| 300. |
A cantilever is subjected to a uniformly distributed load over its whole length '' and a concentrated upward force at its free end. The deflection of the free end is |
| A. | zero |
| Answer» D. | |