All pattern allowances
Only shrinkage allowance
All materials to be cast
All materials of the pattern
B. Only shrinkage allowance
Grain structure is distorted
Strength and hardness of metal increases
Close dimensional tolerance can be maintained
All of the above
Small
Large
Very large
Not provided
Same
Less
More
None of these
20 mm
20.035 mm
20.025 mm
19.975 mm
Shift
Sand wash
Swell
Scab
Carbon electrode and the work
Metal electrode and the work
Bare metal electrode and the work
Two tungsten electrodes and the work
Simple die
Progressive die
Compound die
Combination die
Galvanising
Anodising
Parkerising
Sherardizing
Do not require bevelling
Should be bevelled to a single-V or U-groove
Should have a double-V or U-groove on one side
Should have a double-V or U-groove on both sides
It evolves a great amount of steam and other gases
The sand grains stick together
It clings to the sides of a moulding box
None of these
The mortise gauge has two scribing pins
The gouges are chisels with a hollow shaped blade
An auger is a planing tool
All of these
Collapsibility
Permeability
Cohesiveness
Adhesiveness
Solid form
Gaseous form
Liquid form
Any one of these
Porosity of the metal is largely eliminated
Grain structure of the metal is refined
Mechanical properties are improved due to refinement of grains
All of the above
Shrinkage allowance
Machining allowance
Draft allowance
Distortion allowance
Helium gas
Argon gas
Either (A) or (B)
None of these
Same as
Less than
More than
None of these
10 mm/m
16 mm/m
20 mm/m
26 mm/m
Mild steel
Brass
Copper
Aluminium
Light in weight
Easy to work
Corrosion resistant
All of these
Spot welding
Seam welding
Flash butt welding
Upset butt welding
For finishing flat surfaces
For necking down a piece of work
For punching a hole
To finish the punched hole
Neutral
Oxidising
Carburising
None of these
Ferrous alloys with low melting temperature are casted
Ferrous alloys with high melting temperature are casted
Nonferrous alloys with low melting temperature are casted
Nonferrous alloys with high melting temperature are casted
1800°C
2100°C
2400°C
3200°C
Shift
Sand wash
Swell
Scab
Refining grain size
Reducing original block into desired shape
Controlling the direction of flow lines
All of these
Check the diameter of shafts or studs
Test the accuracy of holes
Check the clearance between two mating surfaces
All of the above
Drawing
Extrusion
Rolling
Extrusion and rolling
Wire drawing
Tube drawing
Metal cutting
Forging