CUET-UG SERIES Informatics-practices
Efficiency Of Screws
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2023 Chapter Questions 1 MCQs
01
PYQ 2023
medium
informatics-practices ID: cuet-ug-
Choose the incorrect statement in case of plain washer:
1
It is placed below nut to give flat smooth bearing surface.
2
It is used where surface of machine part is rough.
3
It prevents nut from cutting in to the metal.
4
It usually loosens the joint of bolt and nut.