RCC Structures Design MCQ Practice Questions (Civil Eng) Set 5

Options are :

• D
• B
• A
• C

Options are :

• E
• D
• A
• C
• B

Options are :

• Rectangular
• Trapezoidal
• Square
• Triangular

Options are :

• C
• D
• B
• A

Options are :

• A
• D
• B
• C

If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept:

Options are :

• 3.0 m
• 3.5 m
• 4.0 m
• 4.5 m
• None of these

Options are :

• B
• E
• C
• D
• A

The neutral axis of a T-beam exists:

Options are :

• At the bottom edge of the slab
• All the above
• Within the flange
• Below the slab

Options are :

• 30
• 35
• 25
• 15
• 20

Options are :

• C
• A
• D
• B

Options are :

• 50
• 60
• 40
• 35
• 30

A pre-stressed concrete member is preferred because:

Options are :

• Removal of cracks in the members due to shrinkage
• Large size of long beams carrying large shear force need not be adopted
• Its dimensions are not decided from the diagonal tensile stress
• All the above

The ratio of the breadth to effective depth of a beam is kept:

Options are :

• 0.75
• None of these
• 0.50
• 0.25
• 0.70

The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is:

Options are :

• 190 kg/cm^(2)
• 1400 kg/cm^(2)
• 260 kg/cm^(2)
• 230 kg/cm^(2)

Pick up the correct statement from the following:

Options are :

• Lateral reinforcement prevents the shearing of concrete on diagonal plane
• Lateral reinforcement in R.C.C. columns, is kept not less than 5 mm diameter
• Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal reinforcement from buckling
• Lateral reinforcement stops breaking away of concrete cover, due to buckling
• All the above

Options are :

• D
• B
• C
• E
• A

Options are :

• 15
• 30
• 25
• 10
• 20

Lapped splices in tensile reinforcement are generally not used for bars of size larger than:

Options are :

• 36 mm diameter
• 24 mm diameter
• 30 mm diameter
• 32 mm diameter
• 18 mm diameter

Options are :

• 20%
• 25%
• 10%
• 15%

Options are :

• Dog legged
• Geometrical
• Open newel
• Straight

Options are :

• B
• D
• E
• C
• A

The load stress of a section can be reduced by:

Options are :

• Increasing the total perimeter of bars
• Decreasing the lever arm
• Replacing larger bars by greater number of small bars
• None of these
• Replacing smaller bars by greater number of greater bars

Answer :Replacing larger bars by greater number of small bars

The steel generally used in R.C.C. work, is:

Options are :

• Mildsteel
• High carbon steel
• Stainless
• High tension steel

Spacing of stirrups in a rectangular beam, is:

Options are :

• Decreased towards the centre of the beam
• Increased at the centre of the beam
• Kept constant throughout the length
• Increased at the ends

Answer :Increased at the centre of the beam

Options are :

• A
• D
• B
• C

Steel bars are generally connected together to get greater length than the standard length by providing:

Options are :

• Hooked splice
• All the above
• Dowel splice
• Straight bar splice

Options are :

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

If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and ?c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is:

Options are :

• All the above
• ?c[A + (m - 1)ASC]
• ?cAc + m ?cAsc
• ?c(A - Asc) + m ?cAsc

Options are :

• 0.7
• 0.6
• 0.8
• 0.9

Options are :

• Two times
• Four times
• Three times
• Five times