(10) Machinist – Semester 2 - Module 3 - Turning Threads

NAME OF TRAINEE

BATCH

• A BATCH
• B BATCH

ROLL NUMBER

PRN

Which one of the following taper turning method needs high initial cost

• A : Form tool
• B : Taper turning attachment
• C : Tail stock set over method
• D : Compound rest swivelling

What is the name of the bottom surface joining the two sides of adjacent thread marked as X?

• root
• crest
• flank
• minor diameter

What is name of the element of screw thread marked as x

• Root
• crest
• flank
• minor diameter

What is the name of the surface joining the crest and the root

• hand
• lead
• pitch
• flank

What is the name of the included angle between the flanks of adjacent thread?

• helix angle
• thread angle
• pressure angle
• clearance angle

Which term is used to indicate the perpendicular distance between root and crest?

• lead
• flank
• pitch
• depth