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Workshop Technology

Workshop Technology
The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called

Punching
Piercing
Shearing
Blanking

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Workshop Technology
To prevent the body of the blade from jamming in the saw cut, the teeth of blade are

Strengthened
All of the listed here
Set
Sharpened

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Workshop Technology
When the dimension is expressed as 20­ -0.025 ⁺⁰∙⁰³⁵, then the basic size is

19.975 mm
20.025 mm
20 mm
20.035 mm

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Workshop Technology
A zinc diffusion process is called

Galvanizing
Anodizing
Parkerising
Sherardizing

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Workshop Technology
In order to ram the sand harder at the back of the mould and softer on the pattern face, a ________ is used.

Sand slinger
Jolt machine
Squeezing machine
Stripper plate machine

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Workshop Technology
In order to get uniform thickness of the plate by rolling process, one provides

Hardening of the rolls
Offset on the rolls
Camber on the rolls
Antifriction bearings

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