measurement and SI units - Category wise Question and Answer Practice Test with Solutions

Question : 1 [PCS (Pre) 2010]

Which one of the following is the unit of measure of the thickness of the ozone layer of the atmosphere?

a) Poise

b) Knot

c) Dobson

d) Maxwell

Question : 2 [MPPCS (Pre) 2016]

One pikogram is equal to

a) $10^{-12}$ gram

b) $10^{-6}$ gram

c) $10^{-9}$ gram

d) $10^{-15}$ gram

Question : 3

Mass is the measure of

a) force

b) matter contained

c) weight

d) none of these

Question : 4 [NDA]

In the system shown, the masses are released from rest. What shall be the acceleration of the moving masses ?

a) g/3

b) g

c) 2g/3

d) g/2

Question : 5 [UP UDA/LDA (Pre) 2010]

Which unit of measurement is multiplied by 0.39 to convert it to ‘inches’?

a) Metre

b) Millimetre

c) Centimetre

d) Decimetre