મુખ્ય સામગ્રી પર જાઓ

State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · પ્રશ્ન 113

What is the working principle of a washing machine (dryer)?

Diffusion
Centrifugation
Dialysis
Reverse osmosis
None of the above / More than one of the above

જવાબ બતાવો અને સમજૂતી

જવાબ: (B) Centrifugation

સમજૂતી

The spin cycle uses centrifugal action to separate water from clothes.

(A) ખોટો
Wrong: not the principle.
(B) સાચો
Correct: spinning throws water out of clothes.
(C) ખોટો
Wrong: not the principle.
(D) ખોટો
Wrong: used in water purifiers.
(E) ખોટો
Wrong: only one of the options A–D is correct.