Strengthened
Sharpened
Set
All of these
C. Set
Replacing broken gear teeth
Repairing broken shears
Joining rails, truck frames and locomotive frames etc.
All of the above
Zinc chloride
Ammonium chloride
Rosin plus alcohol
Borax
8
12
18
20
Voltage
Flow of current
Contact resistance
All of these
Washing it with water
Rubbing on wood
Washing it with dilute acid
Using file card
Permanent mould casting
Slush casting
Die casting
Centrifugal casting
Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition
Molten metal is poured and allowed to solidify while the mould is revolving
Molten metal is forced into mould under high pressure
None of the above
Forward stroke
Return stroke
Both forward and return strokes
Cutting depends upon the direction of force
Machining allowance
Draft allowance
Shrinkage allowance
Distortion allowance
TIG welding
MIG welding
Manual arc welding
Submerged arc welding
Straight polarity
Reversed polarity
Both (A) and (B)
None of these
Zinc diffusion process
Process of coating zinc by hot dipping
Process used for making thin phosphate coating on steel
None of the above
Lower critical temperature
Upper critical temperature
Eutectic temperature
Recrystallisation temperature
5 cm × 5 cm
10 cm × 10 cm
15 cm × 15 cm
20 cm × 20 cm
Bending
Stretching
Rolling and stretching
Bending and stretching
30% sand and 70% clay
50% sand and 50% clay
70% sand and 30% clay
90% sand and 10% clay
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 moulding box
Is extensively used for making bolts and nuts
Is used for reducing the diameter of round bars and tubes 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
Aluminium
Cast iron
Steel
Copper
Equal to minor diameter of the thread
Equal to pitch diameter of the thread
A little larger than the minor diameter of the thread
A little larger than the pitch diameter of the thread
Actual deviation
Upper deviation
Lower deviation
Fundamental deviation
Equal to
Less than
Greater than
None of these
It is not possible to reduce at one stage
Annealing is needed between stages
Accuracy in dimensions is not possible otherwise
Surface finish improves after every drawing stage
Striking tool
Planing tool
Boring tool
Marking tool
Spot welding
Seam welding
Projection welding
Upset butt welding
Cast iron
Mild steel
High speed steel
Cast tool steel
Simple die
Progressive die
Compound die
Combination die
Galvanising
Anodising
Parkerising
Sherardizing
Galvanising
Anodising
Parkerising
Sherardizing
Forehand
Backhand
Vertical
None of these