What is the name of the stake used in sheet metal job as shown in the drawing?
Square Stake
Hatchet Stake
Blow horn Stake
Bevel edged square Stake
What should be the minimum distance from the edge of the metal to the centre of any rivet to avoid tearing?
Equal to the diameter of the rivet
Twice the diameter of the rivet
Thrice the diameter of the rivet
Four times the diameter of the rivet
Articles like pans, buckets, furnace and cabinets are made of ………..
Steel sheets
Galvanised iron sheets
Aluminium sheets
Tin plates
Angle for countersink riveting is ………..
75°
80°
90°
120°
The joint in which the plates are kept side by side is ………..
Lap joint
Butt joint
Edge joint
None of these
Bronze is an alloy of ………..
Copper and Nickel
Copper and Tin
Copper and Zinc
Iron and Copper
Which material sheets are used in sheet metal?
Glavanized iron
Stainless steel
Copper
All of these
A hack saw blade is specified by its-
Length
Material
Width
Number of teeth
A file removes the metal during-
a.Forward stroke
b.Return stroke
c.Both (a) and (b)
d.None of these
In a shaper machine, the metal is removed during-
a.Return stroke
b.Forward stroke
c.Both (a) and (b)
d.Neither the forward nor the return stroke
Brass is an alloy of
Copper and Nickel
Copper and Tin
Copper and Zinc
Iron and Copper
The process of titling (bevelling) one edge of hole is called-
reaming
drilling
spot facing
counter sinking
The blade of hacksaw is made of which of the following metal?
Mild steel
Carbon steel
Copper
Nickel
In a lap joint ………..
The plates are joined at the edges
The plates are kept one over other
One plate is kept horizontally
Other is vertical
Which of the following rivet length is measured including the length of the head?
Plate head rivet
Mushroom head rivet
Snap head rivet
Counter sunk head rivet
Which of the following is not a type of seam?
Grooved seam
Lap seam
Single seam
Drift seam
The folding of the edges of sheet metal is called-
hem
notches
seam
none of these
Concave and convex portion of a fitting job checked by ………….
feeler gauge
wire gauge
radius gauge
height level
The joints made of rivet are-
permanent
semi permanent
temporary
none of these
Copper tube can be easily folded through which process?
Soldering
Annealing
Tempering
Hardening
The head of round bottom stake is of which shape?
Cylindrical
Rectangular
Semicircular
None of these
Which of the following tools sheet can be placed for bending, forging, etc.?
Mallet
Stake
Snip
Scratchwal
What is the angle of slot lip at flaring block?
30°
45°
60°
75°
Name the type of rivet used to avoid projection on the surface?
Tinman’s
Flat head
Round head
Counter sunk
What precaution should be taken while using hammer?
Hold the end edge of the handle with hand
Hold the handle close to the hammer
Grease the hammer
Work using loose handle
What precaution should be taken while using insulated combination pliers?
Do not use it as a hammer
Do not throw from a high place
Oil it from time to time
All of these
Which of the following tools is used for sealing or closing the diameter of copper tubes?
Swaging tool
Flaring tool
Bending tool
Pinching tool
The thickness of sheet metal is indicated by a series of numbers, which is called as ……….
Number size
Gauge
Standard size
None of the above
Bent snip is used for ……
Removing the burr
Making holes on the sheet
Bending the sheet
Cutting the sheet along curved lines
It is only suitable for straight cuts. Which one of the following is the purpose for using hand groover in sheet metal worker?
To lock the grooved seam
To unlock the grooved seam
To strike the sheet
To hold the sheet in position
Copper and brass sheets are ………..
Hard and brittle
Malleable and ductile
Malleable and brittle
Hard and ductile
Which one of the following notches is used when making a job with a 90º bend?
Square notch
V-notch
Wired notch
Slant notch
Which one of the following stakes is used when shaping and seaming funnels and tapered articles?
Hatchet stake
Half-moon stake
Funnel stake
Creasing stake
The least bend radius varies depending on the
Material and thickness of plate
Direction of plate
Working temperature
All the above
Which one of the following sheets is used for making highly corrosive acid tanks?
Black iron sheets
Galvanised iron sheets
Stainless steel sheets
Lead sheets
A mallet is made up of-
Lead
Brass
Hard wood
Cost iron
Which of the following joint is suitable for roofing work?
lap joint
butt joint
hinged joint
double grooved seam joint
Which among the following tools is used to flattening the metal around punched hole?
Ball peen hammer
Riveting hammer
Setting hammer
Sledge hammer
Which one of the following types of joints is used in which the end of sheet is placed over the end of another sheet and joined together?
Lap Joint
Butt Joint
Nocked up joint
Grooved seam joint
Sheet metal working is done only on sheets of metal which are made from
forging
casting
rolling
none of above
Which of the following is the common reason for using aluminum sheets?
Lightness
Brightness
Downess
Darkness
Which of the following stakes provides double ended shelter?
Hatchet stake
Half moon stake
creasing stake
Horse stake
The least bend radius depends on-
On the material and thickness of the plate.
along the direction of the plate
at working temperature
all of the above
For marking various types of hems and seams from the sheet metal of thickness less then \(0.4 \, \text{mm}\), the allowance should be?
twice the thickness of the sheet
three times the thickness of the sheet
four times the thickness of the sheet
no any allowance.
Which of the following them shown in the figure.
Single hem
Double hem
Wired hem
Locked hem
Which of the following is the calculated length G of the grooved joint shown in the figure?
11.5 mm
12.5 mm
13.5 mm
14.0 mm
Which of the following is the name of the special nut shown in the figure?
check nut
Kesil nut
speed nut
grooved nut
The brush used for removing course rust from sheets before painting is-
wooden brush
Nylon brush
Wire brush
Painting brush
A small hole is made at the corner of the notch.
Drill hole
Crank stop hole
Relief hole
None of above
Melting point of the resin is-
80°-100°C
50°-70°C
105°-120°C
100°-130°C
Flux does not occur in which of following?
powder
liquid
glue
gas
Zink chloride flux is used for-
aluminum
iron sheet
copper, brass and tin
none of above
The angle of wire notch is usually 30 and distance is kept to cover the wire by sheet.
3½ D
2 D
3 D
2½ D
It is a light white coloured sheet. It is more resist to corrosion and rubbing/abrasion. It is used in refrigerator tray lighting fixtures, windows electrical and transportation industries.
aluminium sheet
lead sheet
tin sheet
wrought iron sheet
Which metal sheet is used for making dairy industry food items, chemical plants and kitchen density utensils?
Stainless steel sheet resist the corrosion and atmospheric effect without any painting.
Sheet of which metal are made by rolling in hot and cold state, it is used for making gutter expansion joint-
Stainless steel
Land sheet
G.I. sheet
copper sheet
For riveting aluminum sheet the metal of rivet should be
aluminium
copper
brass
soft iron
Which hammer is used for making groovs in sheet metal?
mallet
ball peen hammer
cross peen hammer
claw hammer
In the sheet work the cutting force on the tool can be reduced by-
Grinding the cutting edge sharp
Increasing the hardness of the tool
Increasing the hardness of the die
Providing shear angle of the tool
What is the purpose of snip?
for cutting a thin soft metal sheet
to polish the sheet
to weld sheet
to weld sheet
The ability of materials to deformed and molded into thin sheets is called-
Hardness
Elasticity
Malleability
Ductility
The layer present on the G.I. Sheet is of
copper
zinc
manganese
aluminum
Key sheet rule is used for-
key wedge marking on shaft or rod
external measurement
internal measurement
measure the depth
Which part of hammer is kept soft?
peen
cheak
face
eye hole
Which hammers is used in sheet metal working?
Ball peen hammer
sledge hammer
cross peen hammer
straight peen hammer
Flux used for soldering of G.I. sheet is-
ammonium chloride
resin
hydro chloride
none of these
Generally a good type of stake is made-
cast iron, cast steel
pig iron
high carbon steel
wrought iron
The head of is sharp and taper it is used to bend metal sheets.
Round bottom stake
Hatchet stake
plainishing stake
half moon stake
In creasing iron, groove/slots are made in series these are used for
making taper sleeve
making small size tubes
bending edges
seaming
is as a arc of a sheet edges, circle, which is slanted on one side, it is used for mounting a flange on a metal plate.
hatchet stake
planishing stake
half moon stake
funnel stake
Write the name of stake shown in the figure
Head or Horn
182
HOU
Shank
idsul
20/
Hatchet to stake
round bottom stake
beak stake
half moon stake
Write the name of stake shown in figure
horse stake
hatchet stake
funnel stake
creasing stake
This punch is used for making holes in thin sheets, leather, plastic, cork, gasket seal etc. This punch is known as-
Solid punch
Pin punch
Centre punch
Hollow punch
Hammer is used to spread the metal only the striking line in one direction only
cross peen hammer
ball peen hammer
straight peen hammer
sledge hammer
Which hammer is used to spread the metal in a single direction at right angles to the striking line?
Ball peen hammers
cross peen hammers
sledge hammers
straight peen hammers
Mallet used while making hollow panels is:
Bossing mallet
Simple mallet
End faked mallet
None of these
Mallet is used for stretching i.e. spreading the sheets.
simple mallet
end faked mallet
bossing mallet
all of the above
The mallet is not made of which of the following materials.
raw leather, wood
capper, brass
hard rubber, land
steel
Scratch anvil is used to draw lines, its point is taper grinded on
30° to 40°
15° to 20°
25° to 30°
5° to 15°
To draw large size of circle on the sheet following objects is used –
spring compass
wing compass
Trammel
all of the above
Which hammer is used to bring good finishing in sheet metal work?
Sledge hammer
Ball peen hammer
Raw hide hammer
Cross peen hammer
Cutting a sheet of metal in straight line along its length is called.
plunging
notching
slitting
forming
Trimming process is related with –
press working
forging
electro plating
machining
The process of joining the pieces of sheet together is called
Jointing
Hem
Seam
Notching
The minimum value of G in the joint shown in the figure will be-
W+2T
W+3T
W+3.5T
W+2.5T
Calculating P in panned down addition.
2W+1.5T
2W+T
2W+2T
2W+2.5T
K is calculated in knocked up joint
2W+3T
2W+2T
2W+3.5T
2W+2.5T
The value of C in a double grooved seam joint is-
4W+T
4W+2T
4W+1.5T
4W+4T
Single V and single U joints are used for sheet about-
10-15 mm thickness
5-10 mm thickness
15-20 mm thickness
3-5 mm thickness
Bevel gear is used to transmit power between shafts which are:
Parallél
Co-axial
At an angle
None of the above
Which one of the following is a permanent type of joint?
Bolted joint
Welded joint
Knuckle joint
Universal joint
Pin punch locating or locking pin, dowel pin rivet is used to get it hole, it is in the following sizes.
1,2,3,4 and 6 mm
3,4,5,6 and 8 mm
4,5,6,8 and 10 mm
6,8,10 and 12 mm
Which of the following metals is not used to make rivets-
Cast iron
Copper
Wrought iron
Mild steel
Boiler rivets are used for making boilers. The characteristic of these rivets is that…….
It is small in diameter
It is made of hard metals
Their necks being chamfered at an angle of 60°.
Is short in length
From which of the following metals are rivets made?
copper-bronze
carbon steel
Brass
All of these
What is done to provide the capacity of the containers?
The edges are protected
The edges are folded
Both (a) and (b)
None of the above
With the help of which of the following the sheet is locked after seaming?
Seamer
Grover
Hammer
None of these
Which of the following is the process of cutting thicker sheets?
shearing
drawing
banding
squarzing
The sheet is used to bend.
Stake is used
Anvil is used
Punch is used
Hammer is used
The edges of the sheet are folded to provide strength. What the curved edge is called.
seem
hem
band
rib
Spins are used to cut the sheet. By which part of the blade should the sheet be cut while cutting through it?
From the extreme part
From near the fulcrum
From the outer edge
From the middle part
The process of bending the edges of a sheet to insert wire into it is called-
Grooving
Hauling
Seaming
Wiring
Galvanized iron sheets are used in the manufacture of which of the following products.
Water tank
Tank and boxes for grains
Bus body
All of these
Which of the following is the specialty of brass sheet?
a.Hardness
b.Ductility
c.Both ‘a’ and ‘b’
d.None of these
Used as flux
zinc chloride
zinc oxide
zinc sulphate
zinc
Which of the following is the brazing method used by goldsmiths?
Blow pipe brazing
furnace brazing
Torch brazing
vacuum brazing
Two sheets 8.0 mm thick are joined by a counter sink head rivet whose diameter is 0.5 mm. On the other side also if counter sink head is to be made then what will
15.5 mm
13.0 mm
18.0 mm
11.0 mm
Which of the following does not come under gasket?
Metal gasket
Oil seal
Rubber gasket
Plastic gasket
The thickness of steel metal is expressed in a series of members. It is called-
Number size
Gauge
Standard size
None of the above
Bent snips are used
to remove burrs
to make holes in the sheet
to bend the sheet
to cut the sheet along the curved lines
Which of the following tools is used to flatten the metal around a punched hole?
Ball peen hammer
Riveting hammer
Setting hammer
Sledge hammer
Which of the following sheets is used for making highly corrosive acid tanks?
