০০। A 20 mm dia steel bar which is subjected to an axial tension of 2300 kg/cm2 produces a strain of 0.004 cm. If Young‘s modulus of steel is 2.1 x 106 kg/cm2, the bar is
ক) in the elastic range
খ) in the plastic range
গ) at yield point
ঘ) none of these.
০১। A beam is defined as a structural member subjected to
ক) axial loading
খ) transverse loading
গ) axial and transverse loading
ঘ) none of these.
০২। A beam may be designed as a cased beam if
ক) section is of double open channel form with the webs not less than 40 mm apart
খ) overall depth and width of the steel section do not exceed 750 and 450 mm respectively.
গ) beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160 kg/cm2
ঘ) width of the solid casing is kept at least 100 mm more than the width of the steel flange and having a concrete cover of 50 mm
ঙ) all the above.
০৩। A column is carrying an axial load W and an eccentric load P. If A is its cross-sectional area, ex and ey are the eccentricities and Pxx and Zyy the section modulli, the equivalent axial load is obtained from the formula,
ক)
খ)
গ)
ঘ)
ঙ)
০৪। A column splice is used to increase
ক) length of the column
খ) strength of the column
গ) cross-sectional area of the column
ঘ) none of these.
০৫। A compression member consisting of angle sections may be a
ক) continuous member
খ) discontinuous single angle strut
গ) discontinuous double angle strut
ঘ) all the above.
০৬। A fillet weld may be termed as
ক) mitre weld
খ) concave weld
গ) convex weld
ঘ) all the above.
০৭। A fillet weld whose axis is parallel to the direction of the applied load, is known as
ক) diagonal filler weld
খ) end fillet weld
গ) side fillet weld
ঘ) all the above.
০৮। A long plate girder is subjected to a maximum bending moment M in which permitted allowable bending stress is fb. The economical depth de and the thickness of the web tw, is given by
ক)
খ)
গ)
ঘ)
ঙ) none of these.
০৯। A major beam in a building structure, is known as
ক) a girder
খ) a floor beam
গ) a main beam
ঘ) all the above.
১০। A riveted joint many experience
ক) tearing failure of plates
খ) bearing failure of plates
গ) splitting failure of plates at the edges
ঘ) bearing failure of rivets
ঙ) all the above.
১১। A riveted joint may experience
ক) shear failure
খ) shear failure of plates
গ) bearing failure
ঘ) bearing failure of rivets
ঙ) all the above.
১২। A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than
ক) d/250 for structural steel
খ) d/225 for high tensile steel
গ) both (c) and (b)
ঘ) neither (a) nor (b)
১৩। A simply supported beam carrying a central load, will be safe in deflection if the ratio of its span to depth, is
ক) < 19
খ) < 24
গ) > 19
ঘ) > 24
ঙ) > 37
১৪। A single angle in tension is connected by one leg only. If the areas of connecting and outstanding legs are respectively a and b, net effective area of the angle, is
ক)
খ)
গ)
ঘ)
ঙ) none of these.
১৫। A structural member subjected to compressive stress in a direction parallel to its longitudinal axis, is generally known as
ক) column
খ) stanchion
গ) post
ঘ) strut
ঙ) all the above.
১৬। A structural member subjected to tensile force in a direction parallel to its logitudinal axis, is generally known as
ক) a tie
খ) a tie member
গ) a tension member
ঘ) all the above.
১৭। A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio of the member should not exceed
ক) 180
খ) 200
গ) 250
ঘ) 300
ঙ) 350
১৮। A web plate is called unstiffened if the ratio of clear depth to thickness is less than
ক) 35
খ) 50
গ) 60
ঘ) 85
ঙ) 90
১৯। According to I.S. : 800 - 1871, lacing bars resist transverse shear equal to