Question: _________________ is a rotary drill and it consists of steel pipe stem on the bottom of which is attached to a roller bit.
Options
A : Blasthole
B : Diamond
C : Shot
D : Percussion
Construction Building Materials Types Drills more questions
Which of the following furnace is best suitable for the....
Which type of furnace is used for production of vinyl....
Which gaseous fuel is produced by passing air and steam....
Which gaseous fuel is obtained by carbonization of bituminous coal?
Which gaseous fuel has a very low heating value?
Which of the following is not a variant of BLAST?
The daughter cells formed as a result of cleavage of....
What is the outer layer of blastocyst called?
Which layer of blastomere gets attached to the endometrium of....
Eight to sixteen cell stage embryo is called ______
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