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For the following questions answer them individually
Permeability is poor for
Fine grains
Medium grains
Coarse grains
Rounded grains
Dies for wire drawing are made of
Cast stee
Cast Iron
Carbides
Wrought Iron
In thermit welding, aluminium and Ironoxide are mixed in the proportion of
1 : 3
1: 2
1: 1
2: 1
Metal patterns are used for
Small castings
Large castings
Precise and intricate castings
Large scale production of castings
In order to get the uniform thickness of the plate by rolling process, one provides
Camber on the rolls
Offset on the rolls
Hardening of the rolls
Antifriction bearing
The most important requisite of a cutting tool material is
Carbon percentage
Percentage of alloying element
Red (hot) hardness
Easy Fabrication
The Soldering process is carried out in the temperature range
$$15-60^\circ$$
$$70-150^\circ$$
$$180-250^\circ$$
$$300-500^\circ$$
In electrical resistance welding, both heat and pressure are used to effect coalescence. The pressure necessary to effect the weld varies from
50-100 kgf/cm$$^2$$
100-200 kgf/cm$$^2$$
250-500 kgf/cm$$^2$$
500-850 kgf/cm$$^2$$
The angle between the face and the flank of the single point cutting tool is known as
Rake angle
Clearance angle
Lip angle
Side angle
The commonly used flux for Brazing is
Slag
Borax
Lead
Calcium chloride
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