Fitter trade questions and answers for ncvt exam part 3

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FITTER TRADE QUESTIONS AND ANSWERS LECTURE 3

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Q41 ) Which chisel is used for cutting keyways?

Ans ) Cross cut chisel

Q42 ) Name the property of metal that withstand shock or impact?

Ans ) Toughness

Q43 ) Which type of screw threads are rounded at the crest and root? 

Ans ) B.S.W thread

Q44 ) What is the formula to calculate tap drill size?

Ans ) Tap drill size = Major dia – (2 x depth)

Q45 ) How much carbon content of steel is forgeable?

Ans ) Up to 1.7 %

Q46 ) Which flux used for soldering steel?

Ans ) Ammonium chloride

Q47 ) Which rivet is used in heavy structural work?

Ans ) Pan head rivet

Q48 ) Which tool used in sheet metal work to scribe a circle or arc with a large diameter?

Ans ) Trammel

Q49 ) Which rivets are used in light assembly work?

Ans ) Conical head rivet

Q50 ) Name the tool used to make fluid tight joint in riveting?

C ) Fullering tool

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FITTER TRADE QUESTIONS AND ANSWERS LECTURE 2

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Q21 ) Which caliper is used to mark the centre of round bar?

Ans ) Jenny caliper  

Q22 ) Which grinding machine is used for heavy duty work?

Ans ) Pedestal grinder 

Q23 ) What is the accuracy of metric outside micrometer? 

Ans ) 0.01 mm 

Q24 ) Which type of taper is provided in the drill shank?

Ans ) Morse taper 

Q25 ) Which is used to remove drills and sockets from the machine spindle? 

Ans ) Drift  

Q26 ) What is the accuracy of protractor head in combination set? 

Ans ) 1° 

Q27 ) What is the accuracy of a try square? 

Ans ) 0.002 mm per 10 mm length 

Q28 ) Which punch is used for witness marks? 

Ans ) Dot punch 

Q29 ) Which chisel is used for removing materials on the corners of the keyways?

Ans ) Diamond point chisel 

Q30 ) Which type of hammer is used for riveting purpose? 

B ) Ball pein hammer 

Q31 ) Which is used to finish the resharpened divider point? 

Ans ) Oil stone 

Q32 ) What is the use of bevel protractor? 

Ans ) Measure the angle   

Q33 ) Which vice is used for holding hollow cylindrical  jobs? 

Ans ) Pipe vice 

Q34 ) What is the pitch of hacksaw blade used to cut conduit and other thin tubes? 

Ans )  0.8mm

Q35 ) What is the weight of hammer used for marking purpose? 

Ans ) 250 grams 

Q36 ) Why chalk is applied on the face of the file? 

Ans ) To reduce penetration and pinning  

Q37 ) Which part of outside micrometer ensures a uniform pressure between the measuring surface? 

Ans ) Ratchet stop 

Q39 ) What is the principle of micrometer? 

Ans ) Screw and nut

Q40 ) Which part in drilling machine is to achieve different speed? 

Ans ) Stepped pulley.

fitter trade questions and answer

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FITTER TRADE QUESTIONS AND ANSWERS LECTURE 1

Q1 ) Which one is the personnal safety? 

Ans ) Concentrate on your work 

Q2 ) Flammable of liquifiables solids are classified as. 

Ans ) Class ‘B’ fire 

Q3 ) What is the class of fire caused by fire wood, paper, cloth? 

Ans ) Class ‘A’ fire 

Q4 ) Which fire extinguisher filled with carbon tetra chloride and bromochlorodifluoro methane (BCF)?

Ans ) Halon extinguisher

Q5 ) Which comes under mechanical occupational hazards? 

Ans ) Unguarded machinery 

Q6 ) What are the three factors causes fire? 

Ans ) Fuel, Heat, Oxygen 

Q7 ) What is the period referred as ʹgolden hoursʹ? 

Ans ) First 30 minutes after incident  

Q8 ) What is the first step of avoiding accident in work place? 

Ans ) By observing safety precautions  

Q9 ) Which fire extinguisher is used for flammable and running liquid fire? 

Ans ) Foam extinguisher 

Q10 ) What “A” denotes in ABC of first aid? 

A ) Air way 

Q11 ) What is the process of breaking down the materials into organic compounds and can be used as manure? 

Ans ) Composting 

Q12 ) What is the use of a try square?

Ans ) To check right angle 

Q13 ) Which marking media is poisonous? 

Ans ) Copper sulphate 

Q14 ) Which part of universal surface gauge holds the scriber? 

Ans ) Snug 

Q15 ) Which chisel used for squaring materials at the corners, joints? 

Ans ) Diamond point chisel 

Q16 ) Name the property of metal which can be drawn into wire without rupture. 

Ans ) Ductility 

Q17 ) What is the use of feeler gauge?  

Ans ) Check the gap between the mating parts 

Q18 ) What operation is carried out in a gang drilling machine? 

Ans ) Successive operation of drilling 

Q19 ) Which file is used to make the job close to the finishing size? 

Ans ) Second cut file 

Q20 ) What is the material to manfacture bench vice? 

Ans ) Cast iron  

NCVT ALL INDIA TRADE TEST PAPER FOR ITI FITTER TRADE AUG 2018 SEM 4 PART 2

1) Duralumin is an alloy of 

Aluminum and mercury

Aluminum and iron

Aluminum and Copper

Aluminum and Carbon

Correct answer

Aluminum and Copper

2) Which of the following alloy is used in making aircraft structures? 

Duralumin

Brass

Bronze

Manganin

Correct answer

Duralumin

3) Which of the following method is adopted for preventing corrosion by acids? 

Deaeration

Removal by using ion-exchange resin

Dehumidification

Neutralization with lime

Correct answer

Neutralization with lime

4) Which of the following method is adopted for preventing corrosion by moisture? 

Dehumidification

Deaeration

Removal by using ion-exchange resin

Neutralization with lime

Correct answer

Dehumidification

5) The process which lowers the content of sulphur and phosphorus in steels is known as 

Inhibition

Refining

Passivation

Stimulation

Correct answer

Refining

6) Annealing is a heat treatment given to metals to 

Form a protective layer

Remove the residual stresses

Prevent dezincification

Lower the sulphur content

Correct answer

Remove the residual stresses

7) Magnesium is used in high resistivity electrolytes due to its 

Neutral potential

Most negative potential

Most positive potential

Zero potential

Correct answer

Most negative potential

8) Crowning of a pulley is done to 

a) Prevent the slipping of a belt

b) To increase the tension of a belt

c) To increase the angle of contact

d) None of these

Correct answer

a) Prevent the slipping of a belt

9) In which of the following drives, there is no slip 

Chain drive

Open belt drive

Rope drive

Crossed belt drive

Correct answer

Chain drive

10) The angle of contact (Ɵ) for crossed belt drive is given by 

180 + α

180 - 2α

180 + 2α

180 - α

Correct answer

180 + 2α

11) The power transmitted by a belt drive is given by 

12) The economy in material handling can be achieved by 

a) Employing gravity feed movements

b) Minimizing the distance of travel

c) By carrying material to destination without using manual labour

d) All of these

Correct answer

d) All of these

13) The principle of ‘Unit load’ states that 

a) Materials should be moved in lots

b) One unit should be moved at a time

c) Both (a) & (b)

d) None of these

Correct answer

a) Materials should be moved in lots

14) The forklift truck is used for 

a) Lifting and lowering

b) Vertical transportation

c) Both (a) & (b)

d) None of these

Correct answer

c) Both (a) & (b)

15) Rag bolt is a type of: 

Locking Bolt

Heavy duty bolt

Welding bolt

Foundation bolt

Correct answer

Foundation bolt

16) Lubricating oil 

a) Minimizes wear in moving parts

b) Helps in keeping the parts cool

c) Washes away and carries away dirt

d) All of these

Correct answer

d) All of these

17) In the following system, lubricating oil is carried in separate tanks from where it is fed to the engine 

Mist lubrication system

Dry sump system

Splash system

Wet sump system

Correct answer

Dry sump system 

18) ………………… is the ability of the oil to resist internal deformation due to mechanical stresses. 

a) Viscosity

b) Flashpoint

c) Fire point

d) None of these

Correct answer

a) Viscosity

19) Which gear arrangement is used to change the circular motion of horizontal to vertical without the change in speed ratio? 

Two bevel gear

Two spur gear

Worm and worm gear

Two helical gear

Correct answer

Two bevel gear

20) A systematic approach for maintenance is 

Problem— Diagnosis — Cause — Rectification

Problem — Measure — Diagnosis - Rectification

Problem— Diagnosis — Measure — Rectification

Problem — Cause — Diagnosis — Rectification

Correct answer

Problem — Cause — Diagnosis — Rectification

21) A gear wheel has 36 teeth and 3 mm module, its pitch diameter is? 

12 mm

75 mm

80 mm

108 mm

Correct answer

108 mm

22) What will be the result if the clearance angle in the drill is increased? 

Rough hole surface

Weak cutting edge

Increased point angle

Poor wedging action

Correct answer

Weak cutting edge

23) The main purpose of using worm and worm wheel drives in machines and their accessories is to? 

Provide large speed reduction from worm shaft to worm wheel

Provide large speed reduction from worm wheel to the worm shaft

Transmit large torque

Transmit higher speeds

Correct answer

Provide large speed reduction from worm shaft to worm wheel

24) The tooth thickness of the rack is measured by? 

Gear tester

Flange micrometer

Universal vernier caliper

Gear tooth vernier caliper

Correct answer

Gear tooth vernier caliper

25) Which one of the following groups of properties enables the manufacture of chain hooks from wrought iron?

Hardness, toughness, and brittleness

Hardness, toughness, and ductility

Ductility, malleability, and hardness

Malleability, ductility, and toughness

Correct answer

Malleability, ductility, and toughness

NCVT ALL INDIA TRADE TEST PAPER FOR ITI FITTER TRADE AUG 2018 SEM 4 PART 1

1) The composition of soft solder is 

Lead-70%, tin-30%

Lead-37%, tin-63%

L.ead-50%, tin-50%

L.ead-63%, tin-37%

Correct answer

Lead-37%, tin-63%

2) The filler metal used in brazing has a melting point of above 

200°C

300°C

420°C

520°C

Correct answer

420°C

3) The commonly used flux in brazing is 

Lead sulphide

Borax

Resin

Zinc chloride

Correct answer

Borax

4) A high viscosity index indicates relatively …………………. changes in viscosity of the oil with the temperature. 

a) Larger

b) Smaller

c) Constant

d) None of these

Correct answer

b) Smaller

5) ………………… is the property of lubricating oil due to which the oil particles stick with the metal surfaces. 

a) Oiliness

b) Pour point

c) Adhesiveness

d) None of these

Correct answer

c) Adhesiveness

6) The use of jigs and fixtures 

a) Facilitates deployment of less skilled labor for the production

b) Eliminates pre-machining operations like marking, measuring, laying out, etc.

c) Reduces manual handling operations

d) All of these

Correct answer

d) All of these

7) The following is(are) the function(s) of a jig 

a) Holding the workpiece

b) Locating the workpiece

c) Guiding the cutting tool

d) All of these

Correct answer

d) All of these

8) Fixtures are used in 

a) Milling

b) Shaping

c) Turning

d) All of these

Correct answer

d) All of these

9) The following holds the workpiece securely in a jig or fixture against the cutting forces 

Guiding device

Clamping device

Indexing device

Locating device

Correct answer

Clamping device

10) The following material is commonly used for making locating and clamping devices 

Die steel

Low carbon steel

High carbon steel

High-speed steel

Correct answer

High carbon steel

11) The following type of jig suits best for drilling of holes in hollow cylindrical components, with relatively smaller outside and inside diameters, such as bushes 

Box type jig

Pot type jig

Open type jig

Solid type jig

Correct answer

Pot type jig

12) The following type of jig is used to drill a series of the equidistant hole along a circle 

Index jig

Pot type jig

Open type jig

Plate type jig

Correct answer

Index jig

13) The jigs and fixtures can be constructed through 

a) Casting

b) Fabrication

c) Welding

d) All of these

Correct answer

d) All of these

14) Which material is used for pipes which conduct water and air? 

Copper

Ceramic

Plastic

Stainless steel

Correct answer

Copper

15) Which of the following valves is used to maintain pressure in the system? 

Check valve

Pressure relief valve

Manual control valve with variable flow plug

Pneumatic control valve with variable-flow plug

Correct answer

Pressure relief valve

16) ……………….. is the property of lubricating oil due to which the oil retains a thin film between the two surfaces. 

a) Oiliness

b) Film Strength

c) Adhesiveness

d) None of these

Correct answer

b) Film Strength

17) Maintenance consists of the following action(s) 

a) Replacement of components

b) Repair of components

c) Service of components

d) All of these

Correct answer

d) All of these

18) Class-A fire consists of fire due to 

Oil

Chemical

Transformer

Wood

Correct answer

Wood

19) Water is used to extinguish 

a) Class-A fires

b) Class-B fires

c) Class-C fires

d) All of these

Correct answer

a) Class-A fires

20) The following class of fire occurs in electrical equipment 

a) Class-A fires

b) Class-B fires

c) Class-C fires

d) All of these

Correct answer

c) Class-C fires

21) The following extinguisher is suitable for cotton or other textile fire 

Soda acid

Foam

Dry chemicals

Water

Correct answer

Dry chemicals

22) ……………. is best suited to extinguish oil or flammable liquid fire. 

Soda acid

Dry chemical

Vaporizing liquid

Foam

Correct answer

Foam

23) An alloy is a ……………. 

A mixture of two non-metals

Pure metal

A mixture of metals in any proportion

A mixture of metals in a fixed proportion

Correct answer

A mixture of metals in a fixed proportion

24) Bronze is an alloy of 

Copper and Tin

Copper and Nickel

Copper and Aluminium

Copper and iron

Correct answer

Copper and Tin

25) Which of the following is not an alloy? 

Bronze

Brass

Copper

Steel

Correct answer

Copper