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91. There are __________ methods of heat transfer.
(A) 3
(B) 4
(C) 5
(D) 6

92. Which from the following is NOT a method of heat transfer?
(A) Conduction
(B) Convection
(C) Radiation
(D) All are methods of heat transfer

93. If we heat one end of metallic rod, the other end gets hot. The method of heat transfer is
(A) Conduction
(B) Convection
(C) Radiation
(D) None of these

94. A person seated in front of a fire receives heat by
(A) Conduction
(B) Convection
(C) Radiation
(D) None of these

95. The unit used to measure ‘magnetic flux’ is
(A) pascal
(B) farad
(C) weber
(D) henry

96. Battery was invented by
(A) Volta
(B) Hero
(C) Fermi
(D) Maiman

97. The most abundant element in the earth’s crust is oxygen. The second most abundant element in the earth’s crust is
(A) Hydrogen
(B) Nitrogen
(C) Brass
(D) Silicon

98. The nearest planet to the Sun is
(A) Mercury
(B) Venus
(C) Mars
(D) Jupiter

99. Bronze is an alloy of
(A) Iron, Carbon
(B) Copper, Tin
(C) Nickel, Zinc
(D) Mercury, Lead

100. Molecules with identical molecular formulae but with different structural formulae are called
(A) Isotopes
(B) Isomers
(C) Electrode
(D) Compound

ANSWERS: GENERAL SCIENCE QUIZ
91. A
92. D
93. A
94. C
95. C
96. A
97. D
98. A
99. B
100. B

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