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
B. Two are working rolls and two are backing up rolls
Compressive stress in the flange
Tensile stress in the wall
Both (A) and (B)
None of these
Core is made of sand
Core is made of ferrous metal
Core is made of nonferrous metal
No core is used
7 to 103 kN/m²
70 to 280 kN/m²
280 to 560 kN/m²
560 to 840 kN/m²
Check the trueness of flat surfaces
Locate centres of round rods
Check the surface roughness
None of these
1800°C
2100°C
2400°C
3200°C
Grain structure is distorted
Strength and hardness of metal increases
Close dimensional tolerance can be maintained
All of the above
5 litres
10 litres
15 litres
20 litres
Striking tool
Planing tool
Boring tool
Marking tool
Punch
Die
Half on the punch and half on the die
Either on punch or die depending upon designer's choice
Lower deviation is zero
Upper deviation is zero
Lower and upper deviations are zero
None of these
Cast iron
Mild steel
High speed steel
Cast tool steel
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
Rectangular
Square
Hexagonal
Octagonal
42 mm
44 mm
46 mm
48 mm
Ring
Plug
Feeler
None of these
Sand slinger
Squeezing machine
Jolt machine
Stripper plate machine
0.025 to 3 mm
3 to 5 mm
5 to 8 mm
8 to 10 mm
Rough file
Bastard file
Second cut file
Smooth file
Smoothing and cleaning out depressions in the mould
Cleaning the moulding sand
Moistening the sand around the edge before removing pattern
Reinforcement of sand in the top part of the moulding box
1800°C
2100°C
2400°C
3200°C
From left to right
From right to left
First from left to right and then from right to left
Either from left to right or from right to left
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
Same
Similar
Different
None of these
Hot piercing
Extrusion
Cold peening
Cold heading
Collapsibility
Permeability
Cohesiveness
Adhesiveness
At the same speed and in the same direction
At the same speed but in opposite direction
At different speeds and in the same direction
At different speeds and in the opposite direction
Red colour
Yellow colour
Black colour
Blue colour
400°C
600°C
800°C
None of these
Increasing the cross-section of a bar
Reducing the cross-section of a bar
Joining the two surfaces of metal under pressure after heating
Bending of a bar
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