A diagonal scale is used to read ............ dimensions.

In chain surveying, perpendiculars to the chain line, are set out by ............

Tacheometry is best suited ............

Deviation of the actual road gradient from the proposed contour gradient uphill side, involves ............

The included angles of a theodolite traverse, are generally measured ............

Stadia tacheometry was discovered by James Watt in the year ............

For high sensitivity of the bubble tube ............

Agate cap is fitted with ............

While measuring with a metallic tape of 30 m length pull should be applied ............