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41) What is the principle by which a cooling system (radiator) in a motor car works?
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(B)
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Learn AIR FORCE MCQs with answers [Page 5 of Department 75]
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42) A radioactive substance does not undergo any change (in mass or charge) during
Correct Answer - Option
(B)
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43) What is the max. Water Vapour content in the atmosphere -
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(D)
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44) Aspirin is chemically known as
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(C)
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45) Now-a-days yellow lamps are frequently used as street lights. Which among the given gases is used in these lamps -
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(A)
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46) Pressure Cooker cooks faster as
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(A)
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47) Silver halides are used in photographic plates as they are
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(A)
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48) What is the most common salt in sea water -
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(A)
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49) Sour milk contains
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(B)
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50) Energy that is produced commercially from coal is called
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(C)
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