WEBSCTE-2021 (SEM - 6)
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| All short questions |
- Choose the correct answer:
i) The Indian standard code deals with steel structures is- a. IS: 456 b. IS: 800 c. IS: 1343 d. IS : 1893
ii) The diameter of the Hot Rivet is- a. Nominal diameter b. Gross diameter c. Standard diameter d. Effective diameter
iii) Generally High strength bolts transfer load by- a. Bearing b. Shear c. Tension d. Friction
iv) The yield tensile strength of the bolt of grade 4.6 is-
a. 210 N/mm2
b. 240 N/mm2
c. 300 N/mm2
d. 350 N/mm2
v) For design of Tension member effective area of outstanding leg is- a. equal to gross area b. Less than gross area c. More than gross area d. None of these
vi) Web crippling generally occurs at the point where- a. Bending moment is maximum c. Shear Force is maximum
b. Concentrated loads acts d. deflection is maximum
vii) As per IS codal provision, the effective length of a column fixed at one end and free at other end is (L = Length of the column)-
a. 0.65 L b. 0.85 L c. 1.2 L d. 2 L
viii) The minimum pitch for the tacking bolts should not exceed (whichever is less)-
a. 12t or 200 mm b. 32t or 300 mm c. 48t or 300 mm d. 60t or 200 mm
- Fill in the blanks:
ix) As per IS – 1367, the ratio of net tensile area at the root of the threads to the nominal plain Shank area of the bolt is 0.78 .
x) The allowable bearing strength in concrete is assumed to be 0.45fck in Limit State Method.
xi) The load factor for the combination of (DL+LL+SL) is 1.2 .
xii) The efficiency of a welding joint is more than that of bolted joint.
xiii) The maximum deflection in beam should not exceed L/325 .
xiv) Hanger connection is a type of shear connection.
xv) The design tensile strength of a steel section due to gross-section yielding Tdg is given by Ag.fy/γmo .
xvi) The Shape factor of Circular Section is generally 1.7 .
- State True or False:
xvii) The most preferred beam section as a column is ISHB.(TRUE)
xviii) In the cross section of a fillet weld, the throat thickness is the minimum dimension.(TRUE)
xix) The partial safety factor of material resistance governed by yielding (γmo) is 1.25.(FALSE)
xx) The minimum pitch distance between the holes should be 1.5d.(FALSE)
xxi) In a cantilever truss subjected to Dead load, the top chord member is always subjected to compressive load.(FALSE)
xxii) If the acting moment on beam is very high, the gantry girder can be designed.(FALSE)
xxiii) A beam when free to buckle tends to buckle about its major axis.(TRUE)
xxiv) Load factor is the ratio of working load to collapse load.(FALSE)
