Practice Pakistan's most useful MCQs for competitive exams

Sunlight_________________ ?

• (A)  helps growth of bacterias
• (B)  impedes growth of algae
• (C)  increases dissolved oxygen content
• (D)  reduces turbidity

Answer

Submitted By :Ali Uppal

The yield of a rapid gravity filter as compared to that of slow sand filter, is__________________?

• (A)  10 times
• (B)  15 times
• (C)  20 times
• (D)  30 times
• (E)  35 times

Answer

Submitted By :Ali Uppal

The fire demand of a city may be worked out by _________________?

• (A)  Kuichling’s formula
• (B)  Freeman formula
• (C)  Under Writers formula
• (D)  Bustan’s formula
• (E)  All the above.

Answer

Submitted By :Ali Uppal

Where a structural component or a system is providing lateral support to five or more walls or columns, the lateral load to be resisted may be taken as_______________?

• (A)  4 percent
• (B)  5 percent
• (C)  6 percent
• (D)  7 percent

Answer

Submitted By :Ali Uppal

If H is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be________________?

• (A)  0.75 H
• (B)  0.85 H
• (C)  1.0 H
• (D)  1.5 H

Answer

Submitted By :Ali Uppal

If the horizontal cross-sectional area of a wall is 1200 cm2, then the basic stress shall be multiplied by a reduction factor equal to________________?

• (A)  0 6
• (B)  0.75
• (C)  0.85
• (D)  0.95

Answer

Submitted By :Ali Uppal

The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is_________________?

• (A)  less than or equal to 1/24
• (B)  less than or equal to 1/6
• (C)  more than 1/24
• (D)  less than or equal to 1/12

Answer

Submitted By :Ali Uppal

According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for________________?

• (A)  Boarding schools
• (B)  Nurses home and medical quarters
• (C)  hostels
• (D)  all the above

Answer

Submitted By :Ali Uppal

The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level_______________?

• (A)  1500 m
• (B)  1505 m
• (C)  1475 m
• (D)  1485 m

Answer

Submitted By :Ali Uppal

The least thickness of class B cast iron (spun) pipe, is_________________?

• (A)  7.2 mm
• (B)  7.9 mm
• (C)  8.6 mm
• (D)  10 mm

Answer

Submitted By :Ali Uppal