MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

A bottoming tap has

None of these

Its end tapered for about three or four threads

Its end tapered for about eight or ten threads

Full threads for the whole of its length

TRUE ANSWER : ?
YOUR ANSWER : ?

The depth of cut in drilling is ___ the drill diameter.

One-fourth

Equal to

Double

One-half

TRUE ANSWER : ?
YOUR ANSWER : ?

Jigs are used

To check the accuracy of workpiece

For holding and guiding the tool in drilling, reaming or tapping operations

None of these

For holding the work in milling, grinding, planing or turning operations

TRUE ANSWER : ?
YOUR ANSWER : ?

Discontinuous chips are formed during machining of

Soft metals

Brittle metals

Ductile metals

Hard metals

TRUE ANSWER : ?
YOUR ANSWER : ?

The obtuse angle, included between the chisel edge and the lip as viewed from the end of a drill, is called

Helix or rake angle

Point angle

Chisel edge angle

Lip clearance angle

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?

Milling

Grinding

Turning

Boring

TRUE ANSWER : ?
YOUR ANSWER : ?

The lathe spindles are usually made hollow and provided with

No taper

Internal and external taper

Internal taper

External taper

TRUE ANSWER : ?
YOUR ANSWER : ?

The carbide tools operating at very low cutting speeds (below 30 m/min)

Increases tool life

Spoils the work piece

Reduces tool life

Have no effect on tool life

TRUE ANSWER : ?
YOUR ANSWER : ?

The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.

Brass

Aluminium

Mild steel

Copper

TRUE ANSWER : ?
YOUR ANSWER : ?

Ultrasonic machining is best suited for

Sintered carbides

Glass

Tool steels

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?