Practice Pakistan's most useful MCQs for competitive exams

To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is________________?

• (A)  0.107 L
• (B)  0.207 L
• (C)  0.307 L
• (D)  0.407 L

Answer

Submitted By :Ali Uppal

A ribbed slab is provided for______________?

• (A)  A plain ceiling
• (B)  Thermal insulation
• (C)  Acoustic insulation
• (D)  All the above

Answer

Submitted By :Ali Uppal

A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is___________________?

• (A)  30
• (B)  35
• (C)  40
• (D)  45

Answer

Submitted By :Ali Uppal

A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis______________?

• (A)  Remains within the flange
• (B)  Remains below the slab
• (C)  Coincides the geometrical centre of the beam
• (D)  None of these

Answer

Submitted By :Ali Uppal

In a singly reinforced beam____________?

• (A)  Compression is borne entirely by concrete
• (B)  Steel possesses initial stresses when embedded in concrete
• (C)  Plane sections transverse to the centre line of the beam before bending remain plane after bending
• (D)  Elastic moduli for concrete and steel have different values within the limits of deformation of the beam

Answer

Submitted By :Ali Uppal

In a cantilever retaining wall without a heel slab______________?

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

Answer

Submitted By :Ali Uppal

In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed________________?

• (A)  10 mm
• (B)  15 mm
• (C)  20 mm
• (D)  25 mm

Answer

Submitted By :Ali Uppal

A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is_________________?

• (A)  20 cm
• (B)  25 cm
• (C)  30 cm
• (D)  35 cm

Answer

Submitted By :Ali Uppal

Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than________________?

• (A)  One diameter of thinner bar
• (B)  One diameter of thicker bar
• (C)  Twice the diameter of thinner bar
• (D)  None of these

Answer

Submitted By :Ali Uppal

The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is_______________?

• (A)  51.5
• (B)  52.5
• (C)  53.5
• (D)  54.5

Answer

Submitted By :Ali Uppal