Related Questions

The world's first underground railway system was built in -
A Berlin
B Moscow
C New York
D London
In congested areas where excavation is expensive and inconvenient 'draw in system' of laying of underground cables is often adopted.
A Yes
B No
The tunnels, the artificial underground passages are constructed for:
A Highways
B Railways
C Sewerage
D All the above
Underground cables are laid at sufficient depth
A To minimize temperature stresses
B To avoid being unearthed easily due to removal of soil
C To minimize the effect of shocks and vibrations due to gassing vehicles, etc.
D For all of the above reasons
When was the first underground railway (Metro Railway) started?
A 1982
B 1989
C 1984
D 1992
They are present in the underground parts of the plants and stored food.
A Leucoplasts
B Chromoplasts
C Chloroplasts
D Lysosomes
For determining the velocity of flow of underground water, the most commonly used non-empirical formula is
A Darcy’s formula
B Slichter’s formula
C Hazen’s formula
D Lacy’s formula
Which one of the following tunneling methods is used for laying underground sewers?
A Needle beam method
B Army method
C German method
D Italian method
Which of the following methods is used for laying of underground cables?
A Direct laying
B Draw-in-system
C Solid system
D All of the above
The material commonly used for sheaths of underground cables is
A Lead
B Rubber
C Copper
D Iron

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