Fitter – Semester 1, Module 3

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Fitter – Semester 1, Module 3 - Sheet Metal

Common for All Fitter Trade 1st Year part -1

NAME *

Option 1

NAME OF THE ITI *

MOBILE NUMBER *

1 Which cutting fluid used for drilling in castiron? *

2 points

A Dry air jet

B Soluble oil

C Mineral oil

D Vegetable oil

2 Name the part marked as x in radial drilling machine. *

2 points

A Base

B Spindle

C Radial arm

D Spindle head

3 Select the spindle speed (rpm) for H.S.S drill diameter 24 mm and cutting speed (V) = 30 m/min to drill mild steel. *

2 points

A 275 rpm

B 300 rpm

C 400 rpm

D 450 rpm

4 Which one is used to bring the plates closely together after inserting the rivet in the hole? *

2 points

A Drift

B Dolly

C Rivet set

D Caulking tool

5 What is the use of bent snips? *

2 points

A Groove cut

B Zigzag cut

C Straight cut

D Circular cut

6 Name the part of lever shear marked as x . *

2 points

A Base plate

B Lever arm

C Lower blade

D Upper blade

7 Name the sheet metal operation. *

2 points

A Grooving

B Notching

C Bending

D Folding

8 Name the zinc coated iron? *

2 points

A Black iron

B Tinned iron

C Stainless steel

D Galvanised iron

9 Calculate the weight of steel plate having length of 2000 mm, width of 500 mm, thickness of 4 mm and density of 7.85 g/cm 3. *

2 points

A 21.4 Kg

B 31.4 Kg

C 41.4 Kg

D 50.4 kg

10 Which sheet metal is highly resistant to corrosion and abrasion? *

2 points

A Copper

B Black iron

C Aluminium

D Galvanised iron

11 What is the formula to calculate the size across flat to flat of regular hexagon? *

2 points

12 What is the use of stakes in sheet metalwork? *

2 points

A Rest of work

B Supporting piece

C Sharpening

D Folding shapes

13 What is the material of solder? *

2 points

A Welding rod

B Synthetic element

C Pure metal or alloy

D Non metallic element

14 Which flux used for soldering steel? *

2 points

A Ammonium chloride

B Zinc chloride

C Resin

D Paste

15 What is the purpose of groover? *

2 points

A Releasing of seam

B Compress the seam

C Closing and locking of seam

D Stress relieving during seam operation

16 What is the material used to manufacture rivets? *

2 points

A Rubber

B Synthetic

C Hardened steel

D Mild stee

17 Name the part marked as x in a rivet? *

2 points

A Tail

B Body

C Head

D Diameter

18 Which is the operation of covering area of the metal with molten solder? *

2 points

A Pickling

B Swaging

C Seaming

D Tinning

19 Which rivet is used in heavy structural work? *

2 points

A Pan head rivet

B Snap head rivet

C Counter sunk rivet

D Conical head rivet

20 What is the name of tool is used to support the snap head rivet? *

2 points

A Dolly

B Drift

C Rivet set

D Rivet snap

21 Name the riveting defect shown? *

2 points

A Improper joining of plates

B Burrs between plates

C Rivet head not centred with the shank

D Body of the rivet not perpendicular to the plate

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

2 points

A Spring compass

B Trammel

C Wing compass

D Ordinary compass

23 Why burr form on the underside of the sheet metal while shearing? *

2 points

A No clearance

B Hardened metal

C Increase in force

D Excessive clearance

24 What is the name of part marked X ? *

2 points

A Body

B Clamp

C Upper blade

D Lower blade

25 What is the use of groover in sheet metalwork? *

2 points

A Releasing of seam

B Compress the seam

C Closing of seam

D Stress relieving during seam operation

26 Which rivets are used in light assembly work? *

2 points

A Pan head rivet

B Snap head rivet

C Counter sunk rivet

D Conical head rivet

27 What is the tool used to form the other end of rivet head? *

2 points

A Dolly

B Drift

C Rivet set

D Rivet snap

28 What is the name of the notch in sheet metal work? *

2 points

A V notch

B Slant notch

C Square notch

D Straight notch

29 What type of mallet used for hollowing panel beating? *

2 points

A Brass mallets

B Rubber mallets

C Wooden mallet

D Bossing mallets

30 What is the fault in riveting? | *

2 points

A Burrs between plates

B Rivet head not centered

C Too much allowance given

D Holes on the plate are not in line

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