'STOP' sign is a

A special type of at grade intersection , in which there is central island all the vehicles meeting at the junction moves in clockwise direction

Roller used for clayey soil

A raised portion on the carriageway to protect the pedestrians from the traffic

First session of the Indian National Congress was held under the presidency of:

When did Gandhiji elected as Congress President?

______ is the most precise instrument designed for the measurement of horizontal and vertical angles.

Which of the following cannot be done with help of theodolite in surveying