All of the following alloying elements of steel increases hardness but sacrifice ductility, except

How many flowers are there if all of them are roses except two, all of them are tulips except two and all of them are daisies except two?

A

3

B

6

C

9

D

10

How many flowers are there if all of them are roses except two , all of them are tulips except two and all of them are daisies except two?

A

3

B

6

C

9

D

10

Stainless steel is usually made by alloying the steel with

A

Copper and nickel

B

Copper and chromium

C

Chromium and nickel

D

Manganese and copper

Which of the following alloying elements is present in maximum percentage in high speed steel.

A

Molybdenum

B

Chromium

C

Tungsten

D

Vanadium

Structural steel contains following principal alloying elements

A

Nickel, chromium and manganese

B

Tungsten, molybdenum and phosphorous

C

Lead, tin, aluminium

D

Zinc, sulphur, and chromium

Which of the following alloying elements reduces the formation of iron sulphide in steel?

A

Cobalt

B

Nickel

C

Manganese

D

Vanadium

Which of the following alloying elements when added in steel does not improve its lachinability?

A

Sulphur

B

Phosphorous

C

Copper

D

Lead

The main alloying elements high speed steel in order of increasing proportion are

A

Vanadium, chromium, tungsten

B

Tungsten, titanium, vanadium

C

Chromium, titanium, vanadium

D

Tungsten, chromium, titanium

Alloying elements present in Hayness stel-lite, which has superior performance than high speed steel, are

A

Nickel, cobalt & chromium

B

Tungsten, chromium & cobalt

C

Manganese, chromium & cobalt

D

Tungsten, molybdenum & nickel

The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is

A

Chromium

B

Nickel

C

Vanadium

D

Cobalt

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

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