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Certified Metals and Surface Finishing Technician

How It Works

  1. 1. Select Certification & Register
  2. 2. Receive a.) Online e Learning Access (LMS)    b.) Hard copy - study material
  3. 3. Take exam online anywhere, anytime
  4. 4. Get certified & Increase Employability

Test Details

  • Duration: 60 minutes
  • No. of questions: 50
  • Maximum marks: 50, Passing marks: 25 (50%).
  • There is NO negative marking in this module.
  • Online exam.

Benefits of Certification

Rs.3,499 /-

Vskills has developed a new strategic framework for Skill Development for early school leavers and existing workers, especially in the unorganized sector to improve their employability called Trade Employable Skills (TES).

Trade Employable Skills does effective assessment and certification of candidates in different trade disciplines like Electrical, Electronics, Agriculture, Chemical, Automobile, IT, etc to make them job ready.

Why should one take this certification?

To demonstrate clear understanding and practical aspects and to get a visible recognition for this knowledge.

Table of Content

Practice Test

Companies that hire Metals and Surface Finishing Technician

All small and medium companies need certified employees who have the requisite skills. There are more jobs opening up in the economy on a regular basis with the fast growth of the country.

Apply for Certification

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  • Visa Card
  • Master Card
  • American Express


Metal and Non-metals

  • Methods of identification of steel
  • Non-ferrous metals and Alloys
  • Copper Alloys
  • Lead and its alloys
  • Zinc and its alloys
  • Tin and Tin Alloys
  • Aluminium
  • Non-Metals

Metals used in sheet metal work

  • Black iron sheets
  • Galvanised iron sheets
  • Stainless sheets
  • Copper sheet
  • Aluminium sheet
  • Tinned plae
  • Lead sheets

Standard Wire Gauge

Common metals and alloys and their melting points

  • Engineering materials may be ferrous, non-ferrous metal and alloys.

Physical and mechanical properties of metals

  • Physical properties
  • Mechanical properties

Weldability of metals

  • Necessity of weldability of metals

Identitification of metals

  • Tests to identify metals
  • Identification at ferrous metals
  • Identification of Non-ferrous metals

Methods of designating steel

  • Steel designation based on mechanical properties
  • Designation based on chemical composition
  • Unalloyed steel
  • Unalloyed tool steel
  • Unalloyed free cutting steels
  • Low and medium alloy steel
  • High alloy steel
  • High alloy tool steel
  • High alloy free cutting steel

Colour code of metal

  • Color bands and dots

Cast Iron (Types)

  • Types of cast iron

Steel (Plain carbon steel)

Hardness testing methods

  • Brinell hardness testing method
  • Vicker hardness
  • Rockwell hardness testing
  • Shore hardness testing

Tensile testing method

  • Tensile strength of material
  • The tensile test for metals

Impact Strength

  • Impact strength
  • Test specimen of izod test
  • Charpy test
  • Test specimen for charpy test

Weld defects – causes and remedies

  • Welding defects

Casting defects, causes and remedies

  • Scrap diagnosis for casting

Inspection of weld (NDT) – Visual inspection

  • Necessity of inspection
  • Types of tests
  • Visual inspection
  • Visual inspection before welding
  • Visual inspection during welding
  • Inspection after welding
  • Check points for inspection
  • Measuring gauges used for inspection

Methods of Non-destructive test

  • Common non-destructive testing
  • Special non-destructive tests
  • Visual inspection
  • Leak or pressure test
  • Radiographic test
  • Gamma ray test
  • Magnetic particle test

Destructive Test

  • Nick break test
  • Free bend test
  • Advantages and limitations
  • Examination of fractured weld
  • Tensile test
  • Guided bend test
  • Impact test
  • Fatigue test

Safety, precautions in heat treatment shop

Heat treatment of plain carbon steels

  • Heat treatment process and purposes

Hardening and tempering

  • What is hardening?
  • Purpose of hardening
  • The principle of hardening
  • Process of hardening
  • Soaking time
  • Cooling
  • The quenching medium
  • Tempering
  • Purpose of tempering the steel
  • Process of tempering
  • Tempering temperature

Annealing of steel

  • Annealing process

Normal Steel

Surface hardening of steel

  • Types of surface hardening
  • Case hardening
  • Carburising
  • Pack carburising
  • Liquid Carburising
  • Gas carburising
  • Tempering


  • Gas nitriding
  • Nitriding in salt bath
  • Advantages

Flame hardening

Induction hardening

Different structure of steel (plain carbon)

  • Zero per cent carbon
  • Plain carbon steel

The heating and slow cooling of steel

Effects of carbon in steel

Heating steel for heat treatment

  • Critical temperatures
  • Soaking
  • Soaking time
  • Heating the steel
  • Preheating
  • Quenching

Temperature measuring instruments

  • Seger cone method
  • Pyrometer for temperature measurement
  • Types of pyrometer
  • Thermo-Electric pyrometer
  • Optical pyrometer
  • Radiation pyrometer

Types of furnaces

  • Furnaces for specific heat treatment
  • Muffle furnace
  • Pit furnace
  • Continuous heat treating furnace
  • Conveyor furnace

Safety precautions – painting section

  • Safety in paint store
  • Safety to painters
  • Safety in working place

Surface preparation

  • Advantages of good surface preparation
  • Removal of protective coating
  • Removal of rust and surface contaminants
  • Heating process
  • Solvent wiping process
  • Grit or sand blasting
  • Phosphating process

Tools used in surface preparation

  • Dust brush
  • Wire brush
  • Chisel knife
  • Moulding knife
  • Scrapping knife
  • Emery sheet
  • Sand paper
  • Cloth Emery
  • Water proof emery


  • Types of primer
  • Red oxide primer

Paint Brushes

  • Flat brush
  • Round brush
  • Curve brush
  • Roller brush
  • Advantages of roller brush
  • Disadvantages
  • Artist brush
  • Hints on handling paint brushes


Spray painting

  • Air compressor and its parts
  • Air filter
  • Flexible hose pipe
  • Parts of spray gun
  • Paint container

Quality of paint and painting

  • Viscosity of paint
  • Elcometer
  • Gloss meter
  • Color of paint checking

Factors to be considered for the quality of paint film

  • Blistering
  • Remedy
  • Flaking
  • Causes
  • Remedies
  • Orange peel

Types of paint and its application

  • Pigment
  • Thinner/solvent
  • Plasticizer
  • Driers/accelerators
  • Inhibitors
  • Anti-Skinning agent
  • Anti-Settling agent
  • Types of paints
  • Aluminium paints and its application
  • Polyurethane paint (Two pack)
  • Advantages of pupaints
  • Disadvantages
  • Hammers one finish paints
  • Application
  • Filler
  • Undercoat and its application
  • Enamel and its application
  • Primer
  • Wash primer

Stenciling and Marking

  • Stenciling
  • Preservation of stencil
  • Types of stencil
  • Negative type
  • Stencil media
  • Advantages and limitation of stencil media
  • Advantages of stenciling process
  • Limitation of stenciling process

Powder coating

  • Metal cleaning and pre-treatment
  • Drying
  • Manufacturing of powders
  • Curing
  • Advantages of powder coating
  • Disadvantages
  • Uses of powder coating application

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