Helium gas
Argon gas
Either (A) or (B)
None of these
C. Either (A) or (B)
Ring
Plug
Feeler
None of these
Simple die
Progressive die
Combination die
Compound die
Voltage
Flow of current
Contact resistance
All of these
Replacing broken gear teeth
Repairing broken shears
Joining rails, truck frames and locomotive frames etc.
All of the above
Melting pot is separate from the machine
Melting pot is an integral part of the machine
Melting pot may have any location
Low temperature and pressure is used
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 sand hardness throughout the mould
Produce uniform packing of sand in the mould
Refining grain size
Reducing original block into desired shape
Controlling the direction of flow lines
All of these
Punch
Die
Half on the punch and half on the die
Either on punch or die depending upon designer's choice
Flat chisel
Cape chisel
Round nose chisel
Diamond pointed chisel
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
Equal to
Less than
Greater than
None of these
Actual deviation
Upper deviation
Lower deviation
Fundamental deviation
Check the trueness of flat surfaces
Locate centres of round rods
Check the surface roughness
None of these
Small castings
Large castings
Complicated castings
Large scale production of castings
Core is made of sand
Core is made of ferrous metal
Core is made of nonferrous metal
No core is used
Feeler gauge
Slip gauge
Ring gauge
Plug gauge
Varying the input supply
Changing the primary turns of the transformer
Changing the secondary turns of the transformer
Any one of the above
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
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
Same
Less
More
None of these
Grinding the cutting edges sharp
Increasing the hardness of tool
Providing shear on tool
Increasing the hardness of die
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
1000°C
1250°C
2100°C
3200°C
Drawing
Squeezing
Coining
Planishing
Large electrode is used
Welding rod coated with slag is used
Welding rod coated with fluxing material is used
None of the above
Cast iron
Mild steel
High speed steel
Cast tool steel
Deliver molten metal into the mould cavity
Act as a reservoir for the molten metal
Feed the molten metal to the casting in order to compensate for the shrinkage
Deliver the molten metal from pouring basin to gate
Clay type binder
Organic type binder
Inorganic type binder
Any one of these
1800°C
2100°C
2400°C
3200°C
Bending
Stretching
Rolling and stretching
Bending and stretching