Practice Pakistan's most useful MCQs for competitive exams

Cantilever retaining walls can safely be used for a height not more than_______________?

• (A)  3 m
• (B)  4 m
• (C)  5 m
• (D)  6 m

Answer

Submitted By :Ali Uppal

If the permissible compressive stress for a concrete in bending is C kg/m2, the modular ratio is_____________?

• (A)  2800/C
• (B)  2300/2C
• (C)  2800/3C
• (D)  2800/C2

Answer

Submitted By :Ali Uppal

An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is_______________?

• (A)  8.3 kg/cm2
• (B)  7.6 kg/cm2
• (C)  21.5 kg/cm 2
• (D)  11.4 kg/cm2

Answer

Submitted By :Ali Uppal

According to I.S. 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than______________?

• (A)  20 cm
• (B)  30 cm
• (C)  40 cm
• (D)  75 cm

Answer

Submitted By :Ali Uppal

intensity of pressure at a depth h on a block of earth weighing w per unit If p1 is the vertical______________?

• (A)  wh (1 – cos )/(1 + ) p2 is
• (B)  wh (1 – sin )/(1 + ) )
• (C)  wh (1 – tan )/(1 +
• (D)  w (1 – cos )/h (1 + sin )

Answer

Submitted By :Ali Uppal

In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength______________?

• (A)  100 kg/cm2
• (B)  200 kg/cm2
• (C)  300 kg/cm2
• (D)  400 kg/cm2

Answer

Submitted By :Ali Uppal

If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than____________________?

• (A)  4 mm
• (B)  5 mm
• (C)  6 mm
• (D)  8 mm

Answer

Submitted By :Ali Uppal

foundation is assumed as The weight of a_____________?

• (A)  5% of wall weight
• (B)  7% of wall weight
• (C)  10% of wall weight
• (D)  12% of wall weight

Answer

Submitted By :Ali Uppal

For M 150 mix concrete, according to I.S. specifications, local bond stress, is_________________?

• (A)  5 kg/cm2
• (B)  10 kg/cm 2
• (C)  15 kg/cm2
• (D)  20 kg/cm2

Answer

Submitted By :Ali Uppal

As per I.S. 456 – 1978, the pH value of water shall be_______________?

• (A)  Less than 6
• (B)  Equal to 6
• (C)  Not less than 6
• (D)  Equal to 7

Answer

Submitted By :Ali Uppal