____________________ is similar to platform gantry except that the platform is converted into a movable carriage.

____________________ is a air operated drill similar to Jack hammer.

In _________ method, the depreciation of properties assumed to be equal to the annual sinking fund plus the interest on …

_________________ Gantry consists of a platform which receives and distributes the material.

_______________ is a Rotary type drill and its abrasive power depends on the bit which is in the form of a section of st…

___________________ equipment are used to decrease the porosity of earth and to increase the density and strength of the…

The term _________ is used to indicate the spacing of the drill holes.

__________________ type of excavator is used for digging at or below the operating level.