ELECTRICAL MACHINES QUIZ

__________ moulding process can not be used for thermoplastic plastics.

Extrusion

None of these

Compression

Injection

TRUE ANSWER : ?
YOUR ANSWER : ?

Duriron is

High silicon iron

Acid resistant, brittle and very hard

All of these

Prone to breakage due to thermal expansion because of its very high co-efficient of thermal expansion

TRUE ANSWER : ?
YOUR ANSWER : ?

Lead lined equipments & vessels are suitable for handling

Nitric acid

Sulphuric acid upto 60°C

Hydrochloric acid (10%)

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys.

Iron

Beryllium

Manganese

Copper

TRUE ANSWER : ?
YOUR ANSWER : ?

An elastic behaviour of materials is expressed in terms of

Relaxation time

None of these

Hysterisis loop area

Stress-strain curve

TRUE ANSWER : ?
YOUR ANSWER : ?

Nickel is a constituent of

Bronze

Duralumin

Solder

Monel metal

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the lightest of engineering metals?

Magnesium

Titanium

Tin

Aluminium

TRUE ANSWER : ?
YOUR ANSWER : ?

Urea autoclave is made of

Refractory blocks

Cast iron

Stainless steel

Lead lined steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Alinco, which is a aluminium-cobalt-nickel steel, is used for making

Boiler tubes

Chemical equipments

Powerful magnets

Surgical instruments

TRUE ANSWER : ?
YOUR ANSWER : ?

A material capable of undergoing large permanent deformation, when subjected to compression is termed as

None of these

Brittle

Malleable

Ductile

TRUE ANSWER : ?
YOUR ANSWER : ?

↑