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WorksheetsDesign of RCC and Steel Structures
Total questions: 20
Worksheet time: 10mins
The minimum number of main steel bars provided in R.C.C.
rectangular columns is 4
circular columns is 6
octagonal columns is 8
all the above.
An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at
25°
35°
45°
55°
The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is
35
25
30
20
If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is
Square
Rectangular
Trapezoidal
Triangular
The effective span of a simply supported slab, is
distance between the centres of the bearings
clear distance between the inner faces of the walls plus twice the thickness of the wall
clear span plus effective depth of the slab
none of these.
Pick up the correct statement from the following:
Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal reinforcement from buckling
Lateral reinforcement prevents the shearing of concrete on diagonal plane
Lateral reinforcement stops breaking away of concrete cover, due to buckling
All the above
For initial estimate for a beam design, the width is assumed
1/15th of span
1/20th of span
1/25th of span
1/30th of span
Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at
supports
mid span
every section
quarter span.
By over-reinforcing a beam, the moment of resistance can be increased not more than
10%
15%
20%
25%
Distribution of shear intensity over a rectangular section of a beam, follows :
a circular curve
a straight line
a parabolic curve
an elliptical curve
The method of design of steel framework for greatest rigidity and economy in weight, is known as
simply design
semi-rigid design
fully rigid design
none of these.
A fillet weld may be termed as
mitre weld
concave weld
convex weld
all the above
The most economical section for a column, is
rectangular
solid round
flat strip
tubular section
The distance between e.g. of compression and e.g. of tension flanges of a plate girder, is known as
overall depth
clear depth
effective depth
none of these.
Web crippling generally occurs at the point where
bending moment is maximum
shearing force is minimum
concentrated loads act
deflection is maximum
In a grillage footing, the maximum shear force occurs at the
edge of grillage beam
edge of base plate
centre of grillage beam
centre of base plate.
On steel structures the dead load is the weight of
steel work
material fastened to steel work
material supported permanently
all the above.
The effective length of a compression member of length L held in position at both ends but not restrained in direction, is
L
0.67 L
0.85 L
1.5 L
Pick up the correct statement from the following:
The slenderness ratio of lacing bars for compression members should not exceed 145
The minimum width of lacing bar connected with rivets of nominal diameter 16 mm, is kept 50 mm
The angle of inclination of lacing bars and the axis of the members should be between 40° and 70°
All the above
Outstanding length of a compression member consisting of a channel, is measured as
half of the nominal width
nominal width of the section
from the edge to the first row of rivets
none of these.
