PDF chapter test TRY NOW
Read the statement and reason and check whether both of them are right:
1)
Statement: Sharp knives are used to cut vegetables.
Reason: Surface area of knives is smaller hence the pressure exerted to cut the vegetables will be higher.
Are both the statement and reason given correct?
2)
Statement: Oil, grease are used as lubricants in machineries.
Reason: Fluids such as oil, grease has high viscosity, hence can reduce the friction.
Are both the statement and reason given correct?
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