Related Questions

Ventilating shafts are provided to a sewer line at every
A 100 m
B 150 m
C 200 m
D 300 m
If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains
A Hydrogen sulphide
B Carbon dioxide
C Methane
D Oxygen
Inter-distance between ventilation columns in a sewer line is kept
A 25 to 50 m
B 50 m to 100 m
C 100 m to 150 m
D 150 m to 300 m
Sewer manholes are generally provided at
A The change of gradient
B The change of direction
C The junctions of sewers
D All of these
If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains
A Hydrogen sulphide
B Carbon dioxide
C Methane
D Oxygen
On sports day. if 30 children were made to stand in a column, 16 columns could be formed. If 24 children were made to stand in a column,how many columns could be formed?
A 45
B 20
C 22
D 29
On sports day, if 30 children were made to stand in a column, 16 columns could be formed. If 24 children were made a stand in a column, how many columns could be formed ?
A 40
B 20
C 22
D 30
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.
A Less
B More
C Same
D Either A or B; no generalisation can be made
For walls, columns and vertical faces of all structural members, the form work is generally removed after
A 24 to 48 hours
B 3 days
C 7 days
D 14 days
If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is
A Square
B Rectangular
C Trapezoidal
D Triangular

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