Which finger is used for pressing shift key?
AThumb
BMiddle finger
CLittle finger
DNone of these
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Another name of mainspring tension is
Key tension
Rack tension
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None of these
Blade against which paper is placed in a typewriter?
The solution named " Developine " is used :
If there is one dog in a typewriter, How many escapement wheel is required to operate the typewriter ?
Which is the following is not a type of duplicator ?