Practice Pakistan's most useful MCQs for competitive exams

Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by_________________?

• (A)  Rankine formula
• (B)  Marcus formula
• (C)  Rankine Grashoff formula
• (D)  Grashoff formula

Answer

Submitted By :Ali Uppal

A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is_____________________?

• (A)  WL/P
• (B)  WL/2P
• (C)  WL/3P
• (D)  WL/4P

Answer

Submitted By :Ali Uppal

For initial estimate for a beam design, the width is assumed__________________?

• (A)  1/15th of span
• (B)  1/20th of span
• (C)  1/25th of span
• (D)  1/30th of span

Answer

Submitted By :Ali Uppal

Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of_____________________?

• (A)  h /4
• (B)  h/3
• (C)  h/2
• (D)  2h/3

Answer

Submitted By :Ali Uppal

Spacing of stirrups in a rectangular beam, is__________________?

• (A)  Kept constant throughout the length
• (B)  Decreased towards the centre of the beam
• (C)  Increased at the ends
• (D)  Increased at the centre of the beam

Answer

Submitted By :Ali Uppal

The Young’s modulus of elasticity of steel, is__________________?

• (A)  150 KN/mm2
• (B)  200 KN/mm2
• (C)  250 KN/mm2
• (D)  275 KN/mm2

Answer

Submitted By :Ali Uppal

If the tendon is placed at an rectangular beam (sectional top edge)________________?

• (A)  Is increased by PZ/e
• (B)  Is increased by Pe/Z
• (C)  Is decreased by Pe/Z
• (D)  Remains unchanged

Answer

Submitted By :Ali Uppal

If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads______________?

• (A)  y = L – (l – ) )
• (B)  y = L/2 + (l –
• (C)  y = L/2 – (l + )
• (D)  y = L/2 – (l – )

Answer

Submitted By :Ali Uppal

If the loading on a pre-stressed rectangular beam, is uniformly distributed, the tendon to be provided should be_______________?

• (A)  Straight below centroidal axis
• (B)  Parabolic with convexity downward
• (C)  Parabolic with convexity upward
• (D)  Straight above centroidal axis

Answer

Submitted By :Ali Uppal

The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is_________________?

• (A)  25
• (B)  30
• (C)  35
• (D)  40

Answer

Submitted By :Ali Uppal