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Directions to Solve

In each of the following questions, five words have been given out of which four are alike in some manner, while the fifth one is different. Choose the word which is different from the rest.

Q1: Choose the word which is different from the rest.

A Calf

B Cub

C Piglet

D Duckling

E Hireling

Q2: Batteries differ from fuel cells in that

A a battery is a closed system

B a battery uses hydrogen and oxygen to create electricity

C a battery uses a polymer electrolyte membrane

D none of the above

  

Q3: In 1000 kg of sewage, the total solids approximate

A 0.5 to 1.0 kg

B 1 kg to 2.0 kg

C 5 kg to 7.5 kg

D 7.5 kg to 10 kg.