McqMate
| 301. |
The effective length of a compression member of length L held in position at both ends but not restrained in direction, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» A. L | |
| 302. |
The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as |
| A. | 0.65 kN/m² |
| B. | 0.75 kN/m² |
| C. | 1.35 kN/m² |
| D. | 1.50 kN/m² |
| Answer» A. 0.65 kN/m² | |
| 303. |
Pick up the correct statement from the following: |
| A. | Dead load includes self-weight of the structure and super-imposed loads permanently attached to the structure |
| B. | Dead loads change their positions and vary in magnitude |
| C. | Dead loads are known in the beginning of the design |
| D. | None of these |
| Answer» A. Dead load includes self-weight of the structure and super-imposed loads permanently attached to the structure | |
| 304. |
If N is the number of rivets in the joint, the strength of a riveted joint against shearing of rivets, is given by |
| A. | Ps = N d2 × Ps |
| B. | Ps = N × (d × t × ps) |
| C. | Ps = N × (p - d) × t × Ps |
| D. | Ps = N × (P + d) × t × ps |
| Answer» A. Ps = N d2 × Ps | |
| 305. |
The sway bracing is designed to transfer |
| A. | 2Vi % of the top panel wind load to bottom bracing |
| B. | 10% of the top panel wind load to bottombracing |
| C. | 25% of the top panel wind load to bottombracing |
| D. | 50% of the top panel wind load to bottom bracing |
| Answer» D. 50% of the top panel wind load to bottom bracing | |
| 306. |
Column footing is provided |
| A. | To spread the column load over a larger area |
| B. | To ensure that intensity of bearing pressure between the column footing and soil does not exceed permissible bearing capacity of the soil |
| C. | To distribute the column load over soil through the column footing |
| D. | All the above |
| Answer» D. All the above | |
| 307. |
Rolled steel beams are designated by Indian Standard series and its |
| A. | Weight per metre and depth of itssection |
| B. | Depth of section and weight per metre |
| C. | Width of flange and weight per metre |
| D. | Weight per metre and flange width |
| Answer» B. Depth of section and weight per metre | |
| 308. |
When plates are exposed to weather, tacking rivets are provided at a pitch in line not exceeding (where t is the thickness of the outside plate). |
| A. | 8 t |
| B. | 16 t |
| C. | 24 t |
| D. | 32 t |
| Answer» B. 16 t | |
| 309. |
For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration? |
| A. | Equal angles back to back |
| B. | Unequal legged angles with long legs back to back |
| C. | Unequal legged angles with short legs back to back |
| D. | Both (B) and (C) |
| Answer» B. Unequal legged angles with long legs back to back | |
| 310. |
Pick up the correct statement from the following: |
| A. | The minimum pitch should not be less than 2.5 times the gross diameter of the river |
| B. | The minimum pitch should not be less than 12 times the gross diameter of therivet |
| C. | The maximum pitch should not exceed 10 times the thickness or 150 mm whichever is less in compression |
| D. | All the above |
| Answer» A. The minimum pitch should not be less than 2.5 times the gross diameter of the river | |
| 311. |
Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than |
| A. | 500 mm |
| B. | 600 mm |
| C. | 1000 mm |
| D. | 300 mm |
| Answer» C. 1000 mm | |
| 312. |
For a steel grillage footing to support two unequal column loads |
| A. | Line of action of the resultant of two column loads, is made to coincide with the centre of gravity of the base of the footing |
| B. | Trapezoidal shape is used for the base footing |
| C. | Projections of beams on either side in lower tier are such that bending momentsunder columns are equal |
| D. | All the above |
| Answer» D. All the above | |
| 313. |
In a tension member if one or more than one rivet holes are off the line, the failure of the member depends upon: |
| A. | Pitch |
| B. | Gauge |
| C. | Diameter of the rivet holes |
| D. | All the above |
| Answer» D. All the above | |
| 314. |
The effective length of a compression member of length L, held in position and restrained in direction at both ends, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» B. 0.67 L | |
| 315. |
By providing sufficient edge distance, which of the following failures of riveted joint can be avoided? |
| A. | Tension failure of the plate |
| B. | Shear failure of the rivet |
| C. | Shear failure of the plate |
| D. | Crushing failure of the rivet |
| Answer» C. Shear failure of the plate | |
| 316. |
The maximum tensile and compressive bending stress in extreme fibres of rolled I-sections and channels on the effective section, is |
| A. | 1500 kg/cm2 |
| B. | 1420 kg/cm2 |
| C. | 1650 kg/cm2 |
| D. | 2285 kg/cm2 |
| Answer» C. 1650 kg/cm2 | |
| 317. |
When the ratio of the moment M to axial load P is greater than L/6, the resultant of the compressive bearing pressure which acts at a distance Y from one side, is given by |
| A. | y = (L/3) - (M/P) |
| B. | y = (L/2) - (P/M) |
| C. | y = (L/2) + (M/P) |
| D. | y = (L/3) + (M/P) |
| Answer» B. y = (L/2) - (P/M) | |
| 318. |
The safe working pressure for a spherical vessel 1.5 m diameter and having 1.5 cm thick wall not to exceed tensile stress 50kg/cm2, is |
| A. | 16 kg/cm2 |
| B. | 18 kg/cm2 |
| C. | 20 kg/cm2 |
| D. | 22 kg/cm2 |
| Answer» C. 20 kg/cm2 | |
| 319. |
Battening is preferable when the
|
| A. | Only (i) |
| B. | Only (iii) |
| C. | (i) and (ii) |
| D. | (ii) and (iii) |
| Answer» C. (i) and (ii) | |
| 320. |
For a steel member of slenderness ratio 350, the allowable stress is 76 kg/cm2 if it is |
| A. | HTW grade of thickness exceeding 32 mm |
| B. | HT grade of thickness exceeding 45 mm |
| C. | HT grade of thickness not exceeding 45 mm |
| D. | All the above |
| Answer» D. All the above | |
| 321. |
Bearing stiffener in a plate girder is used to |
| A. | Transfer the load from the top flange to the bottomone |
| B. | Prevent buckling of web |
| C. | Decrease the effective depth of web |
| D. | Prevent excessive deflection |
| Answer» B. Prevent buckling of web | |
| 322. |
The central deflection of a simply supported steel beam of length L with a concentrated load W at the centre, is |
| A. | WL3/3EI |
| B. | WL4/3EI |
| C. | WL3/48EI |
| D. | 5WL4/384EI |
| Answer» C. WL3/48EI | |
| 323. |
If d is the distance between the flange angles, |
| A. | Vertical stiffeners are provided in steel plate girders if the web is less thand/85 |
| B. | Vertical stiffeners are provided in high tensile steel plate girders if the web is lessthan d/175 |
| C. | Horizontal stiffeners are provided in steel plate girders if the web is less thand/200 |
| D. | All the above |
| Answer» D. All the above | |
| 324. |
In case horizontal stiffeners are not used, the distance between vertical legs of flange angles at the top and bottom of a plate girder, is known as |
| A. | Overall depth |
| B. | Clear depth |
| C. | Effective depth |
| D. | None of these |
| Answer» B. Clear depth | |
| 325. |
Pick up the correct statement from the following: |
| A. | The steel beams placed in plain cement concrete, are known as reinforcedbeams |
| B. | The filler joists are generally continuous over three-supports only |
| C. | Continuous fillers are connected to main beams by means of cleat angles |
| D. | Continuous fillers are supported by main steelbeams |
| Answer» D. Continuous fillers are supported by main steelbeams | |
| 326. |
The diameter of base of conical flare of a steel stack is ( d is the diameter of the cylindrical part) |
| A. | Less than d |
| B. | Equal to d |
| C. | More than d |
| D. | Any of the above |
| Answer» C. More than d | |
| 327. |
The effective length of a compression member of length L held in position and restrained in direction at one end and effectively restrained in direction but not held in position at the other end, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» A. L | |
| 328. |
Working shear stress on the gross area of a rivet as recommended by Indian Standards, is |
| A. | 785 kg/cm2 |
| B. | 1025 kg/cm2 |
| C. | 2360 kg/cm2 |
| D. | None of these |
| Answer» B. 1025 kg/cm2 | |
| 329. |
The critical load for a column of length I hinged at both ends and having flexural rigidity El, is given by |
| A. | Pc = ²EI/l² |
| B. | Pc = /l² |
| C. | Pc = /I² |
| D. | None of these |
| Answer» A. Pc = ²EI/l² | |
| 330. |
Length of an outstanding leg of a vertical stiffener, may be taken equal to |
| A. | 1/10th of clear depth of the girder plus 15mm |
| B. | 1/20th of clear depth of the girder plus 20mm |
| C. | 1/25th of clear depth of the girder plus 25mm |
| D. | 1/30th of clear depth of the girder plus 50mm |
| Answer» C. 1/25th of clear depth of the girder plus 25mm | |
| 331. |
The economical depth d of a web plate in which allowable bearing stress is fb, and the maximum bending moment is M, as suggested by Rawater and Clark, is |
| A. | d = (M/fb) |
| B. | d = 1.5 (M/fb) |
| C. | d = 2.5 (M/fb) |
| D. | d = 4.5 (M/fb) |
| Answer» D. d = 4.5 (M/fb) | |
| 332. |
Minimum pitch of the rivets shall not be less than (Where d is gross diameter of rivet) |
| A. | 1.5 d |
| B. | 2.0 d |
| C. | 2.5 d |
| D. | 3.0 d |
| Answer» C. 2.5 d | |
| 333. |
For steel members exposed to weather and not accessible for repainting, the thickness of steel should not be less than |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 334. |
The slenderness ratio of a column supported throughout its length by a masonry wall is |
| A. | Zero |
| B. | 10 |
| C. | 100 |
| D. | Infinity |
| Answer» A. Zero | |
| 335. |
Outstanding length of a compression member consisting of a channel, is measured as |
| A. | Half of the nominal width |
| B. | Nominal width of the section |
| C. | From the edge to the first row ofrivets |
| D. | None of these |
| Answer» B. Nominal width of the section | |
| 336. |
The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula |
| A. | T = WL/4R |
| B. | T = WR/8L |
| C. | T = WL/8R |
| D. | T = WL/2R |
| Answer» C. T = WL/8R | |
| 337. |
Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds |
| A. | 50 t |
| B. | 85 t |
| C. | 200 t |
| D. | 250 tt |
| Answer» B. 85 t | |
| 338. |
For the buildings having a low permeability, the internal wind pressure acting normal to the wall and roof surfaces is taken as (Where p is basic wind pressure) |
| A. | Zero |
| B. | ±0.2 p |
| C. | ± 0.5 p |
| D. | ±0.7 p |
| Answer» B. ±0.2 p | |
| 339. |
If is the maximum allowable bending stress in a tension member whose radius of gyration is and depth is 2y, the required cross sectional area is given by |
| A. | A = My/fr² |
| B. | A = My²/fr² |
| C. | A = My/fr |
| D. | A = My/f²r² |
| Answer» A. A = My/fr² | |
| 340. |
The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, is upto a height of |
| A. | The effective span |
| B. | 1.25 times the effective span |
| C. | 1.50 times the effective span |
| D. | 2.0 times the effective span |
| Answer» B. 1.25 times the effective span | |
| 341. |
Maximum pitch of rivets, used in steel stacks, is limited to |
| A. | 6 t |
| B. | 10 t |
| C. | 12 t |
| D. | 16 t t |
| Answer» B. 10 t | |
| 342. |
According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unit length, is taken as |
| A. | 0.000008 |
| B. | 0.000010 |
| C. | 0.000012 |
| D. | 0.000014 |
| Answer» C. 0.000012 | |
| 343. |
If R is the reaction on the bearing plate, the minimum moment of. inertia of the bearing stiffener provided at the support of a plate girder of overall depth D, the maximum thickness of the compression flange T, carrying total load W, is |
| A. | (D²/250) × (R/W) |
| B. | (D3T/250) × (R/W) |
| C. | (DT/250) × (R/W) |
| D. | (DT/250) × (W/R) |
| Answer» B. (D3T/250) × (R/W) | |
| 344. |
As per IS: 800, in the plastic design, which of the following pairs are correctly matched? Working Loads Load factor
|
| A. | (i) and (ii) are correct |
| B. | (i), (ii) and (iii) are correct |
| C. | (ii) and (iii) are correct |
| D. | Only (i) is correct |
| Answer» A. (i) and (ii) are correct | |
| 345. |
Effective length of a column effectively held in position and restrained in direction at both ends, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» B. 0.67 L | |
| 346. |
Pick up the correct statement from the following: |
| A. | The ends of a strut, are connected together with two rivets |
| B. | The members of strut will have at least two connections spaced equidistant in theirlength |
| C. | The members when separated back-to-back, the connecting rivets should pass through solid washer or packing |
| D. | All the above |
| Answer» D. All the above | |
| 347. |
Effective length of a column effectively held in position and restrained in direction at one end but neither held in position nor restrained in direction at the other end, is |
| A. | 1.5 L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 2 L |
| Answer» D. 2 L | |
| 348. |
If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as |
| A. | 120 mm |
| B. | 160 mm |
| C. | 200 mm |
| D. | 300 mm |
| Answer» B. 160 mm | |
| 349. |
The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as |
| A. | Unstiffened seated connection |
| B. | Stiffened seated connection |
| C. | Seated connection |
| D. | None of these |
| Answer» C. Seated connection | |
| 350. |
The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as |
| A. | 1.8 LL |
| B. | 1.1 L |
| C. | 1.5 L |
| D. | .none |
| Answer» C. 1.5 L | |
| 351. |
The method of design of steel framework for greatest rigidity and economy in weight, is known as |
| A. | Simply design |
| B. | Semi-rigid design |
| C. | Fully rigid design |
| D. | None of these |
| Answer» C. Fully rigid design | |
| 352. |
For a cantilever beam of length built-in at the support and restrained against torsion at the free end, the effective projecting length is |
| A. | l = 0.7 L |
| B. | l = 0.75 L |
| C. | l = 0.85 L |
| D. | l = 0.5 L |
| Answer» B. l = 0.75 L | |
| 353. |
The least permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to |
| A. | 150 t |
| B. | 160 t |
| C. | 170 t |
| D. | 180 t |
| Answer» D. 180 t | |
| 354. |
Bearing stiffeners are provided at
|
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (i) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» C. Both (i) and (iii) | |
| 355. |
Pick up the correct statement from the following: |
| A. | The slenderness ratio of lacing bars for compression members should not exceed145 |
| B. | The minimum width of lacing bar connected with rivets of nominal diameter 16 mm, is kept 50 mm |
| C. | The minimum thickness of a flat lacing bar is kept equal to one-fortieth of its length between inner end rivets |
| D. | All the above |
| Answer» D. All the above | |
| 356. |
If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than |
| A. | d |
| B. | 1.25 d |
| C. | 1.5 d |
| D. | 1.75 d |
| Answer» C. 1.5 d | |
| 357. |
If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at a distance not greater than |
| A. | d but not less than 0.20 d |
| B. | 1.25 d but not less than 0.33 d |
| C. | 1.5 d but not less than 0.33 d |
| D. | 2.0 d but not less than 0.50 d |
| Answer» B. 1.25 d but not less than 0.33 d | |
| 358. |
A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than |
| A. | d/250 for structural steel |
| B. | d/225 for high tensile steel |
| C. | Both (c) and (b) |
| D. | Neither (a) nor (b) |
| Answer» C. Both (c) and (b) | |
| 359. |
The strength of ISA 125 = 75 × 10 mm used as a tie member with its longer leg connected at the ends by 27 mm diameter rivets, is |
| A. | 26,000 kg |
| B. | 26,025 kg |
| C. | 26,050 kg |
| D. | 26,075 kg |
| Answer» D. 26,075 kg | |
| 360. |
The effect of racking forces is considered in the design of
|
| A. | Only (i) |
| B. | Only (ii) |
| C. | Both (i) and (ii) |
| D. | None of the above |
| Answer» A. Only (i) | |
| 361. |
For a column of height fixed in position and direction both at its top and bottom, its effective length, is |
| A. | L |
| B. | L |
| C. | ½ L |
| D. | 2L |
| Answer» C. ½ L | |
| 362. |
A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio of the member should not exceed |
| A. | 180 |
| B. | 200 |
| C. | 300 |
| D. | 350 |
| Answer» D. 350 | |
| 363. |
Pick up the correct statement from the following: |
| A. | Tacking rivets are used if the minimum distance between centres of two adjacent rivets exceeds 12 t or 200 mm, whichever isless |
| B. | Tacking rivets are not considered to calculate stress |
| C. | Tacking rivets are provided throughout the length of a compression member composed of two components back to back |
| D. | All the above |
| Answer» D. All the above | |
| 364. |
Under a concentrated load, bearing stress fb in a beam is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet). |
| A. | fb = W/(b + h tw |
| B. | fb = W/(b + 2h tw |
| C. | fb = W/(b + 2h tw |
| D. | fb = W/(b + h tw |
| Answer» B. fb = W/(b + 2h tw | |
| 365. |
For double angles carrying tension, placed back to back and connected to either side of the gusset plate, the sectional area of the section, is equal to cross sectional area of |
| A. | The section |
| B. | The section plus area of rivet holes |
| C. | The section minus area of rivet holes |
| D. | The section multiplied by the area of the rivet hole |
| Answer» C. The section minus area of rivet holes | |
| 366. |
If fbt and fc are the co-existent bending tensile stress and shear stress in a member, the equivalent stress fc is |
| A. | fbt² + fc²) |
| B. | fbt² + ½fc²) |
| C. | fbt² + 3fc²) |
| D. | fbt² - 3fc²) |
| Answer» C. fbt² + 3fc²) | |
| 367. |
When a large value of radius of gyration is not requiredChannels are placed back to back |
| A. | Channel flanges are kept inward |
| B. | Channel flanges are kept outward |
| C. | None of these |
| D. | all |
| Answer» B. Channel flanges are kept outward | |
| 368. |
Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is |
| A. | 5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» B. 6 mm | |
| 369. |
If d is the distance between the flange angles, the vertical stiffeners in plate girders without horizontal stiffeners, are spaced at a distance not less than |
| A. | 0.15 d |
| B. | 0.22 d |
| C. | 0.33 d |
| D. | 0.44 d |
| Answer» C. 0.33 d | |
| 370. |
To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 371. |
In factory buildings, the horizontal beams spanning between the wall columns supporting a wall covering, are called |
| A. | Stringers |
| B. | Trimmers |
| C. | Girts |
| D. | Lintels |
| Answer» C. Girts | |
| 372. |
A structural member subjected to tensile force in a direction parallel to its longitudinal axis, is generally known as |
| A. | A tie |
| B. | A tie member |
| C. | A tension member |
| D. | All the above |
| Answer» D. All the above | |
| 373. |
According to the Unwin's formula, if is thickness of the plate in mm, the nominal diameter of the rivet, is |
| A. | d = 1.91 t |
| B. | d = 1.91 t2 |
| C. | d = 1.91 t |
| D. | d = 1.91 t |
| Answer» C. d = 1.91 t | |
| 374. |
If the area of cross-section of a single angle discontinuous strut is 30 cm2 and allowable working stress corresponding to its slenderness ratio is 625 kg/cm2, the safe load carrying capacity of the member, is |
| A. | 10 tonnes |
| B. | 12 tonnes |
| C. | 15 tonnes |
| D. | 18 tonnes |
| Answer» C. 15 tonnes | |
| 375. |
The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be: |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 376. |
For determination of allowable stress in axial compression, Indian Standard Institution has adopted |
| A. | Euler's formula |
| B. | Rankine formula |
| C. | Perry Robertson formula |
| D. | Secant formula |
| Answer» D. Secant formula | |
| 377. |
When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which moment in any rivet.) |
| A. | Is at the maximum distance from CG of the rivet group |
| B. | Is at the minimum distance from CG of the rivet group |
| C. | Gives the maximum angle between the two forces Fa and Fm |
| D. | Gives the minimum angle between the two forces Fa and Fm |
| Answer» D. Gives the minimum angle between the two forces Fa and Fm | |
| 378. |
The minimum edge distance of a rivet line connecting two or more plates, is kept equal to 37 mm plus (where t is the thickness in mm of the thinner outside plate). |
| A. | 2 t |
| B. | 4 t |
| C. | 6 t |
| D. | 8 t |
| Answer» B. 4 t | |
| 379. |
Minimum spacing of vertical stiffeners is limited to (Where d is the distance between flange angles) |
| A. | d/4 |
| B. | d/3 |
| C. | d/2 |
| D. | 2d/3 |
| Answer» B. d/3 | |
| 380. |
The rolled steel I-sections are most commonly used as beams because these provide |
| A. | Large moment of inertia with less cross-sectional area |
| B. | Large moment of resistance as compared to othersection |
| C. | Greater lateral stability |
| D. | All the above |
| Answer» D. All the above | |
| 381. |
If P is the wind pressure in kg/cm2 , v is the velocity in km/hour and K is a constant of proportionality, then |
| A. | P = K/v2 |
| B. | v = K/P2 |
| C. | P = Kv2 |
| D. | P = Kv |
| Answer» C. P = Kv2 | |
| 382. |
As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into |
| A. | 4 zones |
| B. | 5 zones |
| C. | 6 zones |
| D. | 7 zones |
| Answer» C. 6 zones | |
| 383. |
Study the following statements.
|
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (i) and (iii) |
| D. | All (i), (ii) and (iii) |
| Answer» B. Both (i) and (ii) | |
| 384. |
The greatest gauge of long rivets should not exceed (where d is the diameter of the holes). |
| A. | 2 d |
| B. | 4 d |
| C. | 6 d |
| D. | 8 d |
| Answer» D. 8 d | |
| 385. |
The shape factor of an isosceles triangle for bending about the axis parallel to the base is: |
| A. | 1.5 |
| B. | 1.7 |
| C. | 2.0 |
| D. | all |
| Answer» D. all | |
| 386. |
Water pressure in a 80 cm water main is 10 kg/cm2. The minimum thickness of themetal required for the water main, not to be stressed more than 200 kg/cm2, is |
| A. | 1 cm |
| B. | 1.5 cm |
| C. | 2 cm |
| D. | 2.5 cm |
| Answer» C. 2 cm | |
| 387. |
The beams supporting the steps of a stair are generally known as Headers |
| A. | Trimmers |
| B. | Stringers |
| C. | Spandrel beams |
| D. | none |
| Answer» C. Spandrel beams | |
| 388. |
With usual notations of the letters, the shear stress fs at any point of the crosssection is given by |
| A. | fs =FQ/It |
| B. | fs =Ft/IQ |
| C. | fs =It/FQ |
| D. | fs =IF/Qt |
| Answer» A. fs =FQ/It | |
| 389. |
If W and L are the total superimposed load and the span of a plate girder in metres, the approximate self weight (W) of the girder, is taken as |
| A. | M = WL/100 |
| B. | M = WL/200 |
| C. | M = WL/300 |
| D. | M = WL/400 |
| Answer» C. M = WL/300 | |
| 390. |
Maximum permissible slenderness ratio of a member normally acting as a tie in a roof truss, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 350 |
| Answer» D. 350 | |
| 391. |
The capacity of the smallest pressed steel tank is 1000 litre |
| A. | 1650 litre |
| B. | 1950 litre |
| C. | 2450 litre |
| D. | none |
| Answer» C. 2450 litre | |
| 392. |
When the depth of a plate girder is at least times the depth of vertical leg of the flange angles, the girder is known as deep plate girder, if is |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» D. 8 | |
| 393. |
If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm from the centre line, is |
| A. | 6 |
| B. | 8 |
| C. | 10 |
| D. | 15 |
| Answer» B. 8 | |
| 394. |
The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is |
| A. | 1.0 mm |
| B. | 1.5 mm |
| C. | 2.0 mm |
| D. | 2.5 mm |
| Answer» B. 1.5 mm | |
| 395. |
Pick up the correct statement from the following: |
| A. | Vertical stiffeners may be placed in pairs one on each side of the web |
| B. | Single vertical stiffeners may be placed alternately on opposite sides of the web |
| C. | Horizontal stiffeners may be placed alternately on opposite sides of theweb |
| D. | All the above |
| Answer» D. All the above | |
| 396. |
The greatest permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to |
| A. | 180 t |
| B. | 220 t |
| C. | 230 t |
| D. | 270 t |
| Answer» D. 270 t | |
| 397. |
The maximum slenderness ratio of a compression member carrying both dead and superimposed load is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 350 |
| Answer» A. 180 | |
| 398. |
Effective length of a column effectively held in position at both ends and restrained in direction at one end, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» C. 0.85 L | |
| 399. |
As per IS : 800, for compression flange, the outstand of flange plates should not exceed |
| A. | 12 t |
| B. | 16 t |
| C. | 20 t |
| D. | 25 tt |
| Answer» B. 16 t | |
| 400. |
If the unsupported length of a stanchion is 4 metres and least radius of gyration of its cross-section is 5, the slenderness ratio of the stanchion, is |
| A. | 60 |
| B. | 70 |
| C. | 80 |
| D. | 100 |
| Answer» C. 80 | |
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