Steel Structures Design Mock test – 3 || Civil Engineering Mock tests Welcome to your Steel Structures Design Mock test -3 Take an exciting test in Steel Structures Design You have only 20 mins to complete the test (25 Questions) Wish you all the best!!! Name Email 1. With a percentage increase of carbon in steel, decreases its A. strength B. hardness C. brittleness D. ductility.2. 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.3. Bulb angles are used in A. column building B. bridge building C. ship building D. water tank building.4. The tensile strength of mild steel for bolts and nuts should not be less than A. 32 kg/mm2 B. 36 kg/mm2 C. 40 kg/mm2 D. 44 kg/mm25. When a tension member consists of two channel sections, the allowance for rivet hole is made for two holes from A. each web B. each flange C. both webs D. each web or one hole from each flange whichever is more E. each web or one hole from each flange whichever is less.6. 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 L7. 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/cm28. On eccentrically loaded columns, the equivalent axial load may be obtained by A. adding the axial load, eccentric load, the product of the bending moment due to eccentric load and the appropriate bending factor B. adding the axial load and eccentric load and subtracting the product of bending moment and appropriate bending factor C. dividing the sum of axial load and eccentric load by the product of the bending moment and appropirate bending factor D. none of these.9. Effective sectional area of a compression member is : A. gross sectional area - area of rivet hole B. gross sectional ares + area of rivet hole C. gross sectional ares x area of rivet hole D. gross sectional ares + area of rivet hole.10. A column splice is used to increase A. length of the column B. strength of the column C. cross-sectional area of the column D. none of these.11. The maximum permissible slenderness ratio of compression member carrying dead and superimposed load, is A. 180 B. 200 C. 250 D. 30012. IS : 800 - 1971 recommends that in a splice plate the number of rivets carrying calculated shear stress through a packing greater than 6 mm thick, is to be increased by 2.5% for every A. 1.00 mm thickness of packing B. 1.50 mm thickness of packing C. 2.0 mm thickness of packing D. 2.50 mm thickness of packing13. 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. L B. 0.67 L C. 0.85 L D. 1.5 L E. 2 L14. To the calculated area of cover plates of a built-up beam, an allowance for rivet holes to be added, is A. 10% B. 13% C. 15% D. 18%15. The effective length of a double angle strut with angles placed back to back and connected to both the sides of a gusset plate, by not less than two rivets, is A. 0.5 L B. 0.67 L C. 0.85 L D. L16. 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 d17. To keep the intensity of bearing pressure between the column base and concrete, compressive throughout the length of the column base, the ratio of the moment M to axial load P should be A. B. C. >L/3 D.>L/618. Allowable working stress corresponding to the slenderness ratio of double angles placed back to back and connected to one side of a gusset plate, is reduced to A. 50% B. 60% C. 70% D. 80%19. Tacking rivets in compression plates not exposed to the weather, have a pitch not exceeding 300 mm or A. 16 times the thickness of outside plate B. 24 times the thickness of outside plate C. 32 times the thickness of outside plate D. 36 times the thickness of outside plate.20. In double lacing, the thickness t of flat lacing is A. t < 1/40 th length between inner end rivets B. t < 1/50 th length between inner end rivets C. t < 1/60 th length between inner end rivets D. t < 1/70 th length between inner end rivets21. 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/cm222. Diameter of a rivet hole is made larger than the diameter of the rivet by A. 1.0 mm for rivet diameter upto 12 mm B. 1.5 mm for rivet diameter exceeding 25 mm C. 2.0 mm for rivet diameter over 25 mm D. none of these.23. The distance between the outer faces of flanges of a plate girder, is known as A. overall depth B. clear depth C. effective depth D. none of these.24. When the length of a tension member is too long A. a wire rope is used B. a rod is used C. a bar is used D. a single angle is used.25. The ratio of the span L of the filler joists to the depth d from the under side of the joist to the top of the structural concrete, should not exceed A. 60 B. 45 C. 35 D. 25