The accuracy of micrometers, calipers, dial indicators can be checked by a
Feeler gauge
Slip gauge
Ring gauge
Plug gauge
Correct Answer :
B. Slip gauge
Related Questions
The fullers are used
For finishing flat surfaces
For necking down a piece of work
For punching a hole
To finish the punched hole
The temperature of the inner luminous cone of neutral flame is about
1000°C
1250°C
2100°C
3200°C
Notching is the operation of
Cutting a sheet of metal in a straight line along the length
Removal of metal to the desired shape from the edge of a plate
Cutting a sheet of metal through part of its length and then bending the cut portion
Bending a sheet of metal along a curved axis
In sheet metal blanking, shear is provided on punches and dies so that
Press load is reduced
Good cut edge is obtained
Warping of sheet is minimised
Cut blanks is straight
The mode of deformation of the metal during spinning is
Bending
Stretching
Rolling and stretching
Bending and stretching
During drawing operation, the states of stress in cup would include
Compressive stress in the flange
Tensile stress in the wall
Both (A) and (B)
None of these
In a cold chamber die casting machine, only nonferrous alloys with _________ are casted.
Low melting temperature
High melting temperature
Both (A) and (B)
None of these
The electrodes used in spot welding have a tip of
Stainless steel
Aluminium
Copper
Brass
Which of the following welding process uses non-consumable electrodes?
TIG welding
MIG welding
Manual arc welding
Submerged arc welding
The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as
Drawing
Squeezing
Coining
Planishing
The tolerance produced by shell moulding process of casting is
+0.05 mm
±0.2 mm
+0.5 mm
±1 mm
When a pattern is made in three parts, the ________ is known as a drag.
Bottom part
Middle part
Top part
None of these
Lancing is the operation of
Cutting a sheet of metal in a straight line along the length
Removal of metal to the desired shape from the edge of a plate
Cutting a sheet of metal through part of its length and then bending the cut portion
Bending a sheet of metal along a curved axis
Seam welding is best adopted for metal thickness ranging from
0.025 to 3 mm
3 to 5 mm
5 to 8 mm
8 to 10 mm
The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)
t
1.5 t
3 t
6 t
According to Indian standards, the total numbers of tolerance grades are
8
12
18
20
Sand wash is a casting defect which
Results in a mismatching of the top and bottom parts of a casting
Results in general enlargement of the casting
Occurs near the ingates as rough lumps on the surface of a casting
Occurs as sand patches on the upper surface of a casting
During cold working process
Grain structure is distorted
Strength and hardness of metal increases
Close dimensional tolerance can be maintained
All of the above
The material which can be best cut with oxygen cutting process is
Mild steel
Brass
Copper
Aluminium
The accuracy of micrometers, calipers, dial indicators can be checked by a
Feeler gauge
Slip gauge
Ring gauge
Plug gauge
Rotary swaging
Is extensively used for making bolts and rivets
Is used for reducing the diameters of round bars and a tube by rotating dies which open and close rapidly on the work
Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface
Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
The welding process used in joining mild steel shanks to high speed drills, is
Spot welding
Seam welding
Flash butt welding
Upset butt welding
The process of increasing the cross-section of a bar at the expense of its length, is called
Drawing down
Upsetting
Spinning
Peening
The diaphragm moulding machine is used to
Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
Ram the sand harder at the back of the mould and softer on the pattern face
Produce uniform packing of sand in the mould
Give uniform sand hardness throughout the mould
A moving mandrel is used in
Wire drawing
Tube drawing
Metal cutting
Forging
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be
10 mm/m
16 mm/m
20 mm/m
26 mm/m
In spot welding, the distance between the nearest edge of the plate and centre of weld should be equal to
d
1.5d
3d
6d
Most of the oxyacetylene welding is done with
Neutral flame
Oxidising flame
Carburising flame
All of these
Structural sections such as rails, angles, I-beams are made by
Hot rolling
Hot drawing
Hot piercing
Hot extrusion
When the file is moved to and fro over the work, it is known as
Cross filing
Draw filing
Pull and push filing
None of these