MCQOPTIONS
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MCQOPTIONS
This section includes 367 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
The minimum head room over a stair must be |
| A. | 200 cm |
| B. | 205 cm |
| C. | 210 cm |
| D. | 230 cm |
| Answer» D. 230 cm | |
| 252. |
If jd is the lever arm and ΣO is the total perimeter of reinforcement of an R.C.C. beam, the bond stress at the section having Q shear force, is |
| A. | Q/2jdƩO |
| B. | Q/3jdƩO |
| C. | Q/jdƩO |
| D. | 2 × Q/jdƩO |
| Answer» D. 2 × Q/jdƩO | |
| 253. |
If the maximum bending moment of a simply supported slab is M Kg.cm, the effective depth of the slab is (where Q is M.R. factor) |
| A. | M/100Q |
| B. | M/10√Q |
| C. | √(M/Q) |
| D. | √(M/100Q) |
| Answer» E. | |
| 254. |
If the average bending stress is 6 kg/cm² for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is |
| A. | 28 d |
| B. | 38 d |
| C. | 48 d |
| D. | 58 d |
| Answer» E. | |
| 255. |
If the loading on a pre-stressed rectangular beam, is uniformly distributed, the tendon to be provided should be. |
| A. | Straight below centroidal axis |
| B. | Parabolic with convexity downward |
| C. | Parabolic with convexity upward |
| D. | Straight above centroidal axis |
| Answer» C. Parabolic with convexity upward | |
| 256. |
The zone in which transverse bending is likely to occur may be obtained by drawing a line from the faces of the column making an angle θ° with horizontal where θ° is |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | None of these |
| Answer» C. 60° | |
| 257. |
In a doubly-reinforced beam if ‘c’ and ‘t’ are stresses in concrete and tension reinforcement, ‘d’ is the effective depth and ‘n’ is depth of critical neutral axis, the following relationship holds good |
| A. | mc/t = n/(d - n) |
| B. | (m + c)/t = n/(d + n) |
| C. | (t + c)/n = (d + n)/n |
| D. | mc/t = (d - n)/t |
| Answer» B. (m + c)/t = n/(d + n) | |
| 258. |
The toe projection of foundation slabs is taken |
| A. | As one third of the base |
| B. | As one sixth of overall height of the wall |
| C. | Equal to heel slab |
| D. | Below ground surface |
| Answer» B. As one sixth of overall height of the wall | |
| 259. |
If ‘p’ is the net upward pressure on a square footing of side ‘b’ for a square column of side ‘a’, the maximum bending moment is given by |
| A. | B.M = pb (c - a)/4 |
| B. | B.M = pb (b - a)²/4 |
| C. | B.M = pb (b - a)²/8 |
| D. | B.M = pb (b + a)/8 |
| E. | B.M = pb (b + a)/8 |
| Answer» D. B.M = pb (b + a)/8 | |
| 260. |
Pick up the true statement from the following: |
| A. | Plain ceiling provides the best property diffusing light |
| B. | In the absence of beams, it is easier to install piping |
| C. | In the absence of beams, it is easier to paint |
| D. | All the above |
| Answer» E. | |
| 261. |
Pick up the assumption for the design of a pre-stressed concrete member from the following: |
| A. | A transverse plane section remains a plane after bending |
| B. | During deformation limits, Hook's law is equally applicable to concrete as well as to steel |
| C. | Variation of stress in reinforcement due to changes in external loading is negligible |
| D. | All the above |
| Answer» E. | |
| 262. |
If p1 is the vertical intensity of pressure at a depth h on a block of earth weighing w per unit volume and the angle of repose φ, the lateral intensity of pressure p2 is |
| A. | wh (1 - cos φ)/(1 + sin φ) |
| B. | wh (1 - sin φ)/(1 + sin φ) |
| C. | wh (1 - tan φ)/(1 + tan φ) |
| D. | w (1 - cos φ)/h (1 + sin φ) |
| Answer» C. wh (1 - tan φ)/(1 + tan φ) | |
| 263. |
If the length of a combined footing for two columns l meters apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where x̅ is the distance of centre of gravity of column loads). |
| A. | y = L - (l - x̅) |
| B. | y = L/2 + (l - x̅) |
| C. | y = L/2 - (l + x̅) |
| D. | y = L/2 - (l - x̅) |
| Answer» E. | |
| 264. |
If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is |
| A. | K/x (1 + x/d) + bw |
| B. | Kx (1 - x/l) + bw |
| C. | Kx (1 + x/l) + bw |
| D. | All the above |
| Answer» C. Kx (1 + x/l) + bw | |
| 265. |
A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is |
| A. | WL/8 |
| B. | WL²/24 |
| C. | WL²/47 |
| D. | WL²/16 |
| Answer» D. WL²/16 | |
| 266. |
If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm² and 1400 kg/cm² respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is |
| A. | 0.496 % |
| B. | 0.596 % |
| C. | 0.696 % |
| D. | 0.796 % |
| Answer» D. 0.796 % | |
| 267. |
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is |
| A. | σcAc + m σcAsc |
| B. | σc(A - Asc) + m σcAsc |
| C. | σc[A + (m - 1)Asc] |
| D. | All the above |
| Answer» E. | |
| 268. |
A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be |
| A. | WL²/15 |
| B. | WL²/30 |
| C. | WL²/60 |
| D. | WL²/90 |
| Answer» E. | |
| 269. |
The design of heel slab of a retaining wall is based on the maximum bending moment due to: |
| A. | Its own weight |
| B. | Weight of the soil above it |
| C. | Load of the surcharge, if any |
| D. | All the above |
| Answer» E. | |
| 270. |
‘P’ is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The maximum stress ‘f’ in the beam, subjected to a maximum bending moment ‘M’, is |
| A. | f = (P/'+ (Z/M) |
| B. | f = (A/P) + (M/Z) |
| C. | f = (P/A) + (M/Z) |
| D. | f = (P/A) + (M/6Z) |
| Answer» D. f = (P/A) + (M/6Z) | |
| 271. |
The advantage of reinforced concrete, is due to |
| A. | Monolithic character |
| B. | Fire-resisting and durability |
| C. | Economy because of less maintenance cost |
| D. | All the above |
| Answer» E. | |
| 272. |
The steel generally used in R.C.C. work, is |
| A. | Stainless |
| B. | Mild steel |
| C. | High carbon steel |
| D. | High tension steel |
| Answer» C. High carbon steel | |
| 273. |
A foundation is called shallow if its depth, is |
| A. | One-fourth of its width |
| B. | Half of its width |
| C. | Three-fourth of its width |
| D. | Equal to its width |
| Answer» E. | |
| 274. |
The maximum shear stress (q) in concrete of a reinforced cement concrete beam is |
| A. | Shear force/(Lever arm × Width) |
| B. | Lever arm/(Shear force × Width) |
| C. | Width/(Lever arm × Shear force) |
| D. | (Shear force × Width)/Lever arm |
| Answer» B. Lever arm/(Shear force × Width) | |
| 275. |
If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is |
| A. | d |
| B. | n |
| C. | d + n/3 |
| D. | d - n/3 |
| Answer» E. | |
| 276. |
An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm φ placed symmetrically along the circumference. If it carries a load of 40,000 kg axially, the stress is |
| A. | 49.9 kg/cm² |
| B. | 100 kg/cm² |
| C. | 250 kg/cm² |
| D. | 175 kg/cm² |
| Answer» B. 100 kg/cm² | |
| 277. |
The minimum thickness of a flat slab is taken |
| A. | L/32 for end panels without drops |
| B. | L/36 for end panels without drops |
| C. | L/36 for interior panels without drop |
| D. | All the above |
| Answer» E. | |
| 278. |
If l₁ and l₂ are the lengths of long and short spans of a two way slab simply supported on four edges and carrying a load w per unit area, the ratio of the loads split into w₁ and w₂ acting on strips parallel to l₂ and l₁ is |
| A. | w₁/w₂ = l₂/l₁ |
| B. | w₁/w₂ = (l₂/l₁)² |
| C. | w₁/w₂ = (l₂/l₁)³ |
| D. | w₁/w₂ = (l₂/l₁)⁴ |
| Answer» E. | |
| 279. |
To have pressure wholly compressive under the base of a retaining wall of width b, the resultant of the weight of the wall and the pressure exerted by the retained, earth should have eccentricity not more than |
| A. | b/3 |
| B. | b/4 |
| C. | b/5 |
| D. | b/6 |
| Answer» E. | |
| 280. |
For M 150 grade concrete (1 : 2 : 4) the moment of resistance factor is |
| A. | 0.87 |
| B. | 8.50 |
| C. | 7.50 |
| D. | 5.80 |
| Answer» C. 7.50 | |
| 281. |
The weight of a foundation is assumed as |
| A. | 5% of wall weight |
| B. | 7% of wall weight |
| C. | 10% of wall weight |
| D. | 12% of wall weight |
| Answer» D. 12% of wall weight | |
| 282. |
If P kg/m² is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by |
| A. | D = 0.00775 aP |
| B. | D = 0.0775 aP |
| C. | D = 0.07775 aP |
| D. | D = 0.775 Pa |
| Answer» B. D = 0.0775 aP | |
| 283. |
‘P’ is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The minimum stress ‘f’ on the beam subjected to a maximum bending moment ‘M’ is |
| A. | f = (P/'- (Z/M) |
| B. | f = (A/P) - (M/Z) |
| C. | f = (P/A) - (M/Z) |
| D. | f = (P/A) - (M/6Z) |
| Answer» D. f = (P/A) - (M/6Z) | |
| 284. |
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 |
| Answer» E. | |
| 285. |
Enlarged head of a supporting column of a flat slab is technically known as |
| A. | Supporting end of the column |
| B. | Top of the column |
| C. | Capital |
| D. | Drop panel |
| Answer» D. Drop panel | |
| 286. |
The design of a retaining wall assumes that the retained earth |
| A. | Is dry |
| B. | Is free from moisture |
| C. | Is not cohesive |
| D. | All the above |
| Answer» E. | |
| 287. |
If p₁ and p₂ are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is |
| A. | [(p₁ - p₂)/2] h |
| B. | [(p₁ + p₂)/4] h |
| C. | [(p₁ + p₂)/2] h |
| D. | (p₁ - p₂) ⅔h |
| Answer» D. (p₁ - p₂) ⅔h | |
| 288. |
If the bearing capacity of soil is 10 tonnes/cm² and the projection of plain concrete footing from walls, is a cm, the depth D of footing is |
| A. | D = 0.0775 a |
| B. | D = 0.775 a |
| C. | D = 0.775 √a |
| D. | D = 0.775 a² |
| Answer» C. D = 0.775 √a | |
| 289. |
For a ribbed slab |
| A. | Clear spacing between ribs shall not be greater than 4.5 cm |
| B. | Width of the rib shall not be less than 7.5 cm |
| C. | Overall depth of the slab shall not exceed four times the breadth of the rib |
| D. | All the above |
| Answer» E. | |
| 290. |
If permissible working stresses in steel and concrete are respectively 1400 kg/cm² and 80 kg/cm² and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is |
| A. | 37 cm |
| B. | 38 cm |
| C. | 39 cm |
| D. | 40 cm |
| Answer» E. | |
| 291. |
The self-weight of the footing, is |
| A. | Not considered for calculating the upward pressure on footing |
| B. | Also considered for calculating the upward pressure on footing |
| C. | Not considered for calculating the area of the footing |
| D. | Both (b) and (c) |
| Answer» B. Also considered for calculating the upward pressure on footing | |
| 292. |
A raft foundation is provided if its area exceeds the plan area of the building by |
| A. | 10 % |
| B. | 20 % |
| C. | 40 % |
| D. | 50 % |
| Answer» E. | |
| 293. |
As the percentage of steel increases |
| A. | Depth of neutral axis decreases |
| B. | Depth of neutral axis increases |
| C. | Lever arm increases |
| D. | Lever arm decreases |
| Answer» C. Lever arm increases | |
| 294. |
The length of lap in tension reinforcement should not be less than the bar diameter × (actual tension / four times the permissible average bond stress) if it is more than |
| A. | 18 bar diameters |
| B. | 24 bar diameters |
| C. | 30 bar diameters |
| D. | 36 bar diameters |
| Answer» D. 36 bar diameters | |
| 295. |
The neutral axis of a T-beam exists |
| A. | Within the flange |
| B. | At the bottom edge of the slab |
| C. | Below the slab |
| D. | All the above |
| Answer» E. | |
| 296. |
High strength concrete is used in pre-stressed member |
| A. | To overcome high bearing stresses developed at the ends |
| B. | To overcome bursting stresses at the ends |
| C. | To provide high bond stresses |
| D. | All the above |
| Answer» E. | |
| 297. |
According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is |
| A. | Stress in concrete × area of concrete |
| B. | Stress in steel × area of steel |
| C. | Stress in concrete × area of concrete + Stress in steel × area of steel |
| D. | None of these |
| Answer» D. None of these | |
| 298. |
Based on punching shear consideration, the overall depth of a combined footing under a column A, is |
| A. | (Area of the column A × Safe punching stress)/Load on column A |
| B. | (Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column) |
| C. | (Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column) |
| D. | None of these |
| Answer» C. (Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column) | |
| 299. |
As per IS : 1343, total shrinkage for a pre-tensioned beam, is |
| A. | 3.0 × 10⁻² |
| B. | 3.0 × 10⁻³ |
| C. | 3.0 × 10⁻⁵ |
| D. | 3.5 × 10⁻⁵ |
| Answer» E. | |
| 300. |
If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by |
| A. | ft .d/4fb |
| B. | (π/4). (ft .d/fb) |
| C. | π ft .d²/fb |
| D. | (π/4). (ft .d3/fb) |
| Answer» B. (π/4). (ft .d/fb) | |