Riser
Sprue
Core
None of these
B. Sprue
Drawing down
Upsetting
Spinning
Peening
7 to 103 kN/m²
70 to 280 kN/m²
280 to 560 kN/m²
560 to 840 kN/m²
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
Machining allowance
Draft allowance
Shrinkage allowance
Distortion allowance
Steel
Cast iron
Copper
All of these
One is working roll and three are backing up rolls
Two are working rolls and two are backing up rolls
Three are working rolls and one is backing up roll
All of the four are working rolls
Horizontal core
Vertical core
Drop core
Balanced core
Direct current with straight polarity is used
Direct current with reversed polarity is used
Alternating current is used
Any one of these
d
1.5 d
3 d
6 d
Hot piercing
Extrusion
Cold peening
Cold heading
Simple die
Progressive die
Compound die
Combination die
Age hardening
Work hardening
Induction hardening
Flame hardening
8
12
18
20
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
Single cut file
Double cut file
Rasp cut file
Any one of these
Continuous spot welding process
Multi-spot welding process
Arc welding process
Process used for joining round bars
1 to 2 mm/m
2 to 5 mm/m
5 to 10 mm/m
10 to 15 mm/m
Die casting method
Slush casting method
Permanent mould casting method
Centrifugal casting method
Zinc diffusion process
Process of coating zinc by hot dipping
Process used for making thin phosphate coating on steel
None of the above
Two or more operations are performed simultaneously at the single stroke of the ram
Two or more cutting operations are performed at one station of the press in every stroke of the ram
Both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram
None of the above
Light in weight
Easy to work
Corrosion resistant
All 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
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
1800°C
2100°C
2400°C
3200°C
Equal to
Smaller than
Larger than
None of these
Rough file
Bastard file
Second cut file
Smooth file
Spot welding
Seam welding
Flash butt welding
Upset butt welding
1 to 5 volts
6 to 10 volts
11 to 20 volts
50 to 100 volts
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
Striking tool
Planing tool
Boring tool
Marking tool