## RCC Structures Design MCQ Practice Questions (Civil Eng) Set 7

##### The width of the flange of a L-beam, should be less than:

Options are :

• Breadth of the rib + half clear distance between ribs
• One-sixth of the effective span
• Least of the above
• Breadth of the rib + four times thickness of the slab

##### Enlarged head of a supporting column of a flat slabs is technically known as:

Options are :

• Capital
• None of these
• Top of the column
• Supporting end of the column
• Drop panel

##### In a cantilever retaining wall without a heel slab:

Options are :

• Width of the base slab is kept 0.7 time the total height of the wall
• Base slab is made 10 cm thicker than the stem
• All the above
• Thickness of the stem is kept same throughout

Options are :

• Four times
• Seven times
• Six times
• Three times
• Five times

##### The weight of reinforced concrete, is generally taken as:

Options are :

• 2300 kg/m^(3)
• 2800 kg/m^(3)
• 2500 kg/m^(3)
• 2400 kg/m^(3)
• 2200 kg/m^(3)

##### The design of heel slab of a retaining wall, is based on the maximum bending moment due to:

Options are :

• Upward soil reaction
• Load of the surcharge, if any
• Weight of the soil above it
• All the above
• Its own weight

##### For a number of columns constructed in a rcjw, the type of foundation provided, is:

Options are :

• Footing
• Strap
• Raft
• Strip
• A combination of the above

##### An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus:

Options are :

• UDL of wall + load from the roof
• UDL of wall
• Triangular load of the wall

##### A per IS : 1343, total shrinkage for a pretensioned beam, is:

Options are :

• 3.5 x 10-5
• 3.0 x 10^(-5)
• 3.0 x 10^(-4)
• 3.0 x 10^(-2)
• 3.0 x 10^(-3)

Options are :

• 15
• 25
• 30
• 20
• 10

##### In a simply supported slab, alternate bars are curtailed at:

Options are :

• 1/7th of the span
• 1/6th of the span
• 1/4th of the span
• 1/5th of the span
• None of these

##### The breadth of a ribbed slab containing two bars must be between:

Options are :

• 8 cm to 10 cm
• 6 cm to 7.5 cm
• None of these
• 12 cm to 15 cm
• 10 cm to 12 cm

Answer :8 cm to 10 cm

Options are :

• 15
• 25
• 10
• 20
• 30

##### The Young's modulus of elasticity of steel, is:

Options are :

• 150 KN/mm^(2)
• 250 KN/mm^(2)
• 275 KN/mm^(2)
• 200 KN/mm^(2)

Options are :

• 12 mm
• 14 mm
• 16 mm
• 15 mm
• 13 mm

##### In a singly reinforced beam:

Options are :

• Steel possesses initial stresses when em-beded in concrete
• Plane sections transverse to the centre line of the beam before bending remain plane after bending
• Elastic modulii for concrete and steel have different values within the limits of deformation of the beam
• Compression is borne entirely by concrete
• None of these

Answer :Plane sections transverse to the centre line of the beam before bending remain plane after bending

Options are :

• 15 mm
• 20 mm
• 25 mm
• 30 mm
• 10 mm

##### In the zone of R.C.C. beam where shear stress is less than 5 kg/cm^(2), nominal reinforcement is provided at a pitch of:

Options are :

• Lever arm of the section
• One and half lever arm of the section
• One-half lever arm of the section
• One-third lever arm of the section

Answer :Lever arm of the section

Options are :

• A
• C
• E
• D
• B

##### The live load to be considered for an inaccessible roof, is:

Options are :

• Nil
• 150 kg/cm^(2)
• 75 kg/m^(2)
• 200 kg/m^(2)

##### The advantage of reinforced concrete, is due to:

Options are :

• Fire-resisting and durability
• Economy because of less maintenance cost
• Monolithic character
• All the above
• Moulding in any desired shape

Options are :

• 50 cm
• 75 cm
• 40 cm
• 30 cm
• 20 cm

Options are :

• A
• D
• B
• C
• E

Options are :

• 15 cm
• 25 cm
• 10 cm
• 5 cm
• 20 cm

Options are :

• A
• B
• C
• D

##### Distribution reinforcement in a simply supported slab, is provided to distribute:

Options are :

• All the above
• Temperature stress
• Shrinkage stress

Options are :

• A
• C
• B
• D

##### [A + (m - 1)ASC] known as equivalent concrete area of R.C.C. is given by:

Options are :

• Modular ratio method
• None of these

##### Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam:

Options are :

• Are bent down at suitable places to serve as shear reinforcement
• Are maintained at bottom to provide at least local bond stress
• Are curtailed if not required to resist the bending moment
• Are bent up at suitable places to serve as shear reinforcement

Answer :Are bent down at suitable places to serve as shear reinforcement

Options are :

• B
• E
• D
• C
• A