# MCQs on Geometry of Twist Drills-1

1 - Question

Part of twist drill which carries flutes and extends from dead centre up to the start of the neck is known as
a) Body
b) Point
c) Lip
d) Chisel edge
Explanation: Body of twist drill carries flutes and extends from dead centre up to the start of a neck. This is the longest part of a twist drill.

2 - Question

Part of drill between neck and tang is known as
a) Body
b) Point
c) Shank
d) Chisel edge
Explanation: Shank of twist drill is between neck and tang.

3 - Question

Edge formed at extreme tip due to the intersection of flanks, is known as
a) Body
b) Point
c) Lip
d) Chisel edge
Explanation: Chisel edge is formed at extreme tip due to the intersection of flanks. It is at the extreme edge of chisel edge. advertisement

4 - Question

Cone shaped surface formed at the end of the flutes which contains dead centre, lips and flanks etc. is known as
a) Body
b) Point
c) Lip
d) Chisel edge
Explanation: Point is a Cone shaped surface formed at the end of the flutes which contains dead centre, lips and flanks etc. It is at the end part of the twist drill.

5 - Question

Main cutting part of drill is
a) Body
b) Point
c) Lip
d) Chisel edge
Explanation: Lip is the main cutting part of the drill and is also called cutting edge. Material removed first at chisel edge.

6 - Question

Intersection of each faces and flank form
a) Body
b) Point
c) Lip
d) Chisel edge
Explanation: Lip is the main cutting part of the drill and is also called cutting edge. It is formed at Intersection of each faces and flank.

7 - Question

Small clearance provided in diameter of twist drills adjacent to land is known as
a) Body clearance
b) Point clearance
c) Lip clearance
d) Chisel edge clearance
Explanation: Body clearance is provided in diameter of twist drills adjacent to land. This clearance help in the removal of material during cutting.

8 - Question

Which of the following help in reducing friction between drill and the walls of the hole in twist drills?
a) Body clearance
b) Point clearance
c) Lip clearance
d) Chisel edge clearance
Explanation: Body clearance reduces friction between drill and the walls. It helps in smooth drilling of holes during the operation.

9 - Question

Narrow flat surface running along flutes of twist drill on its leading edge is known as
a) Body
b) Point
c) Lip
d) Land
Explanation: Land is the narrow flat surface running along flutes of twist drill on its leading. It is the flat part of a twist drill.

10 - Question

Narrow flat surface running along flutes of twist drill on its leading edge is known as
a) Body
b) Point
c) Lip
d) Margin