The brightness of the image ............ the magnifying power.

When the magnetic bearing of the sun at noon is 185°20', the magnetic declination will be ............

A traverse deflection angle is ............

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

Indirect ranging is adopted when the two ends of chain line are ............

A curve of varying radius is known as ............

Horizontal distances obtained tacheometerically are corrected for ............

Chain surveying is most suitable when ............

The properties of autogenous curve for automobiles are given by ............