Galvanizing Engineer Interview Preparation Guide
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Galvanizing Engineer based Frequently Asked Questions in various Galvanizing Engineer job interviews by interviewer. These professional questions are here to ensures that you offer a perfect answers posed to you. So get preparation for your new job hunting

48 Galvanizing Engineer Questions and Answers:

1 :: Tell us why Is The Soldering Iron Bit Made Of Copper And Not Of Steel?

Because copper is good conductor of heat and quickly transfer its heat to the metal at the joint than the steel.
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2 :: What is normalising?

Normalising is a process to make the steel part to its normal stage.

The main purposes are:
☛ To reduce grain size of steel.
☛ To achieve desired mechanical properties.
☛ To remove internal stresses caused by working.
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3 :: Explain me what Is Meant By Lower And Higher Critical Points?

While heating a steel part, the temperature raises and it changes the structure of steel part .The temperature point at which the change starts is called lower critical point and the temperature at which the change ends is called higher critical point.
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4 :: Tell me how Is Steel Classified?

According to carbon percentage
☛ Low carbon steel : Less than 0.25% carbon
☛ Medium carbon steel: 0.25%­0.7% carbon
☛ High carbon steel: 0.7%­1.5% carbon

According to percentage of alloying elements
☛ Low alloy steel: Alloying element less than 8%
☛ High alloy steel: Alloying element more than 8%
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5 :: Tell me The Following Properties Of Metal:
(a) Fusibility
(b) Stiffness
(c) Ductility

Fusibility: It is the property of metal due to which a metal becomes fluid when it is heated.

Stiffness: It is the property of metal due to which a metal is capable of resisting deflection due to an externally applied load.

Ductility: It is the property of metal due to which a metal can be drawn into the form of wires without rupture.
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6 :: Explain me what is the Toughness of metal?

Toughness is the property of metal due to which without fracture a metal is able to withstand bending or torsion. Mild steel and wrought iron are tough metals.
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7 :: Tell me what is the difference between Wrought iron, Cast iron and Pig iron?

Wrought iron contains less than 0.1% carbon and this is a product of puddling furnace. Cast iron is produced from cupola furnace. It contains 3­3.5% carbon in combined or free state. Pig iron is an iron carbon alloy contains 3­5% carbon along with impurities like manganese, sulphur and phosphorous. It is a product of blast furnace.
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8 :: Tell us what are the differences between Brass and Bronze

Brass is an alloy of copper and zinc. Generally brass contains 60% copper and 40% zinc. These are used for making bearings, pump fittings, bushes and utensils.
Bronze contains copper and tin. It is comparatively hard, surface wear is less, can be remolded into any shape like wires, sheets, rods etc.
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9 :: Tell me why heat treatment of steel is necessary?

☛ To improve machinability.
☛ To obtain desired properties.
☛ To increase resistance of corrosion.
☛ To change electrical and magnetic properties.
☛ To relieve the stresses after cold or hot working.
☛ To refine the grain size.
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10 :: Tell us what do you mean by Stainless Steel?

It is an alloy steel which contains mainly 8% Nickel and 18% Chromium. Stainless steel main applications in measuring and surgical instruments.
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