Tin coating on metals is not done by (A) Spraying (B) Powder metallurgy (C) Hot dipping (D) Electro-deposition

Tin coating on metals is not done by
(A) Spraying
(B) Powder metallurgy
(C) Hot dipping
(D) Electro-deposition
by

1 Answer

Answer :

(B) Powder metallurgy
by

Related questions

Tin coating is not done by (A) Vaporising (B) Hot dipping (C) Electro deposition (D) Spraying

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Last Answer : (A) Vaporising

Powder metallurgy process does not make metal powder by (A) Atomisation (B) Grinding/milling (C) Hammering (D) Electrolytic deposition

Description : Powder metallurgy process does not make metal powder by (A) Atomisation (B) Grinding/milling (C) Hammering (D) Electrolytic deposition

Last Answer : Option C

Electro deposition of metals i.e. electroplating is never done on (A) Metals (B) Alloys (C) Refractories (D) Non-metals

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Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process? (A) Galvanising (B) Tinning (C) Sherardizing (D) None of these

Description : Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process? (A) Galvanising (B) Tinning (C) Sherardizing (D) None of these

Last Answer : (C) Sherardizing

The coating of a thin layer of zinc on steel or iron objects is known as – (1) Hot dipping (2) Tinning (3) Galvanising (4) Electroplating

Description : The coating of a thin layer of zinc on steel or iron objects is known as – (1) Hot dipping (2) Tinning (3) Galvanising (4) Electroplating

Last Answer : (3) Galvanising Explanation: Galvanization is the process of applying a protective zinc coating to steel or iron, in order to prevent rusting. Although galvanization can be done with electrochemical and ... is hot-dip galvanization, in which steel parts are submerged in a bath of molten zinc.

The coating of a thin layer of zinc on steel or iron objects is known as (1) Hot dipping (2) Tinning (3) Galvanising (4) Electroplating

Description : The coating of a thin layer of zinc on steel or iron objects is known as (1) Hot dipping (2) Tinning (3) Galvanising (4) Electroplating

Last Answer : Galvanising

_____ is the process of coating Zinc by hot dipping

Last Answer : Galvanizing is the process of coating Zinc by hot dipping 

Case hardening is not done by (A) Nitriding (B) Hot dipping (C) Electroplating (D) Both ‘b’ & ‘c’

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Last Answer : Option D

Choose a statement that correctly defines the term AMALGAM: A. Amalgam is a metallic powder composed of silver, tin, copper and zinc B. Amalgam is an alloy of two or more metals that have been dissolved in each other in the molten state. C. Amalgam is an alloy of two or more metals, one of them is mercury D. Amalgam is a metallic substance in powder or tablet from that is mixed with mercury E. Amalgam is an alloy of two or more metals, one of them is tin

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The process of heating the cold pressed metallic powder is called __________ in powder metallurgy. (A) Precipitation (B) Fusion (C) Sintering (D) Agglomeration

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Last Answer : (C) Sintering

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Last Answer : (C) Porosity free components

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Last Answer : (A) Spherical

Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Description : Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Last Answer : Option A

Powder metallurgy technique is used in the production of __________ tools. (A) Tungsten carbide (B) High carbon steel (C) High speed steel (D) Drilling

Description : Powder metallurgy technique is used in the production of __________ tools. (A) Tungsten carbide (B) High carbon steel (C) High speed steel (D) Drilling

Last Answer : Option A

Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per m2 of steel strip. (A) 5-10 (B) 1000-1500 (C) 120-500 (D) 1500-3000

Description : Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per m2 of steel strip. (A) 5-10 (B) 1000-1500 (C) 120-500 (D) 1500-3000

Last Answer : Option C

What are the properties of powder metallurgy ?

Description : What are the properties of powder metallurgy ?

Last Answer : The advantages of powder metallurgy are given below: All the products which cannot be made in any other way , can be made in this way. Products can also be made with a mixture of metallic ... case of mass production. Skilled workers are not needed. The product produced is very smooth and beautiful.

What is powder metallurgy ?

Description : What is powder metallurgy ?

Last Answer : The branch of metallurgy which deals with the preparation of metal powders and the use of specific heat and pressure from that powder to make human service utensils or desirable working materials and their properties is called powder metallurgy .

Insulation of liquid surface can be achieved by __________ on top of its surface. (A) Floating hollow polypropylene spheres (B) Spraying alumina powder (C) Putting cement (D) None of these

Description : Insulation of liquid surface can be achieved by __________ on top of its surface. (A) Floating hollow polypropylene spheres (B) Spraying alumina powder (C) Putting cement (D) None of these

Last Answer : (A) Floating hollow polypropylene spheres

(3) made cathode and a pure nickel red, the anode Explanation: Electroplating is the deposition by electrolysis of a coating of metal upon a conducting surface. The simplest system makes the object to be plated the negative electrode (cathode) or plate in a galvanic couple. Thus a spoon or other object may be connected by a wire to a plate of nickel. The process that occurs on the spoon is called reduction and, therefore, the spoon is also referred to as a cathode.

Description : (3) made cathode and a pure nickel red, the anode Explanation: Electroplating is the deposition by electrolysis of a coating of metal upon a conducting surface. The simplest system makes the object to be ... on the spoon is called reduction and, therefore, the spoon is also referred to as a cathode.

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Which of the following metals cannot be hot worked at room temperature? (A) Zinc (B) Nickel (C) Lead (D) Tin

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Alloy powder manufactured by the following process have spherical shapes. (A) Electrochemical deposition (B) Gaseous reduction (C) Atomisation (D) Mechanical attrition

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How many of the given metals can be obtained by carbon reduction in their extractive metallurgy

Description : How many of the given metals can be obtained by carbon reduction in their extractive metallurgy

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Last Answer : (C) Zircon powder

State the two methods of Hot dipping.

Description : State the two methods of Hot dipping. 

Last Answer : Two methods of hot dipping-1. Galvanizing 2. Tinning

Galvanization is the : (1) deposition of zinc on iron (2) deposition of tin on iron (3) deposition of copper on iron (4) deposition of aluminium on iron

Description : Galvanization is the : (1) deposition of zinc on iron (2) deposition of tin on iron (3) deposition of copper on iron (4) deposition of aluminium on iron

Last Answer : deposition of zinc on iron

Which of the following is not Powder-Based RP system? a.Selective Laser Sintering (SLS) b.Solid Object Ultraviolet-Laser Printer (SOUP) c.Electron Beam Melting (EBM) d.Direct Metal Deposition (DMD)

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Last Answer : (D) All (A), (B) & (C)

What would happen if the protective tin coating over an iron bucket is broken in some places ?

Description : What would happen if the protective tin coating over an iron bucket is broken in some places ?

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Galvanised Iron sheets have a coating of------ A. Tin B. Silver C. Zinc (Answer) D. Chromium

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Description : Galvanised Iron sheets have a coating of (1) Tin (2) Lead (3) Zinc (4) Chromium

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____ is done by dipping the fish in cold water and then freezing a layer before dipping the fish again. a. Cleaning c. Glazing b. Skinning d. Dressing

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Generally __________ are subjected to galvanising (i.e., zinc coating). (A) Non-ferrous metals (B) Non-metals (C) Low carbon steels (D) Stainless steel

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Sherardizing process is used for (A) Surface coating (B) Heat treatment of high speed steel (C) Cold working on metals (D) None of these

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Which of the following metals in not used for coating of the base metal to guard it against corrosion? (A) Lead (B) Cadmium (C) Magnesium (D) Aluminium

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Pick out the wrong statement about coating/electroplating of metals. (A) Phosphate coating is used as an excellent base for paints & enamels (B) Phosphate coating is less corrosion resistant than chromate coating (C) The base metal to be electroplated is normally made the cathode of the electrolytic cell and coating metal is made the anode (D) Calorising is the process of coating steel with chromium

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Why alkali metals are highly electro positive & they are not found in free state ?

Description : Why alkali metals are highly electro positive & they are not found in free state ?

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Which of the following is the lightest of engineering metals? (A) Magnesium (B) Aluminium (C) Titanium (D) Tin

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spraying a peach tree,loaded with small fruit, when its hot, help to hydrate tree?

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We have some pieces of metals that have been “powder coated”, how does that work?

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Bauxite is an alloy of which of the following metals? (1) Aluminium (2) Silver (3) Tin (4) Iron

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Which of the following metals form an amalgam with other metals? (1) Lead (2) Tin (3) Zinc (4) Mercury

Description : Which of the following metals form an amalgam with other metals? (1) Lead (2) Tin (3) Zinc (4) Mercury

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Bronze medal is made up of metals ? A. copper,nickel B. copper, tin (Answer) C. copper, silver D. copper, zinc

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