Practice Pakistan's most useful MCQs for competitive exams

To determine the force in BD of the truss shown in the given figure a section is passed through BD, CD and CE, and the moments are taken about________________?

• (A)  A joint
• (B)  B joint
• (C)  C joint
• (D)  D joint

Answer

Submitted By :Ali Uppal

A short column (30 cm × 20 cm) carries a load P 1 at 4 cm on one side and another load P2at 8 cm on the other side along a principal section parallel to longer dimension. If the extreme intensity on either side is same, the ratio of P1 to P2 will be_________________?

• (A)  2/3
• (B)  3/2
• (C)  8/5
• (D)  5/8

Answer

Submitted By :Ali Uppal

For beams breadth is constant__________________?

• (A)  Depth d M
• (B)  Depth d 3
• (C)  Depth d
• (D)  Depth d 1/M

Answer

Submitted By :Ali Uppal

For calculating the permissible stress 0 y /[(1 + a(l/r)²] is the empirical formula, known as__________________?

• (A)  Straight line formula
• (B)  Parabolic formula
• (C)  Perry’s formula
• (D)  Rankine’s formula

Answer

Submitted By :Ali Uppal

The maximum B.M. due to an isolated load in a three hinged parabolic arch, (span l and rise h) having one of its hinges at the crown, occurs on either side of the crown at a distance_______________?

• (A)  l/4
• (B)  h/4
• (C)  l
• (D)  l

Answer

Submitted By :Ali Uppal

The force in AC of the truss shown in the given figure, is_________________?

• (A)  5t tension
• (B)  4t tension
• (C)  4t compression
• (D)  5t compression

Answer

Submitted By :Ali Uppal

The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is_________________?

• (A)  WI/2
• (B)  WI²/4
• (C)  WI²/8
• (D)  WI²/12

Answer

Submitted By :Ali Uppal

At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by_________________?

• (A)  Depth of the section
• (B)  Depth of the neutral axis
• (C)  Maximum tensile stress at the section
• (D)  Maximum compressive stress at the section

Answer

Submitted By :Ali Uppal

The yield moment of a cross section is defined as the moment that will just produce the yield stress in_________________?

• (A)  The outer most fibre of the section
• (B)  The inner most fibre of the section
• (C)  The neutral fibre of the section
• (D)  The fibre everywhere

Answer

Submitted By :Ali Uppal

A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be_______________?

• (A)  wa/27
• (B)  wa²/27
• (C)  w²a
• (D)  wa²

Answer

Submitted By :Ali Uppal