Q. In low carbon steels, __________ raises the yield point and improves the resistance to atmospheric corrosion.

View solution

Q. A steel containing 16 to 18% chromium and about 0.12% carbon is called

View solution

Q. The alloy, mainly used for corrosion resistance in stainless steels is

View solution

Q. The temperature required for full annealing in hyper-eutectoid steel is

View solution

Q. Chromium when added to steel __________ the tensile strength.

View solution

Q. Which of the following is added in low carbon steels to prevent them from becoming porous?

View solution

Q. A steel with carbon __________ is known as hypo-eutectoid steel.

View solution

Q. Free cutting steels

View solution

Q. The presence of hydrogen in steel causes

View solution

Q. Y-alloy contains

View solution

Q. The steel scrap added in the charge of cupola controls the grade of cast iron produced.

View solution

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

View solution

Q. Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

View solution

Q. Which of the following metal is used for nuclear energy?

View solution

Q. Tin base white metals are used where the bearings are subjected to

View solution

Q. The charge of the blast furnace consists of

View solution

Q. The ability of a material to resist fracture due to high impact loads, is called

View solution

Q. The purpose of heat treatment is to

View solution

Q. An alloy of copper, tin and zinc is known as

View solution

Q. Which of the following iron exist between 910° C and 1403° C?

View solution