Important Questions of General Science General Awareness | Zigya

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131.

The study of population is known as

  • hydrology

  • demography

  • climatology

  • petrology

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132.

'Shock-absorbers' are usually made of steel as it

  • is not brittle

  • has lower elasticity

  • has higher elasticity

  • has no ductile property

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133.

The time period of a pendulum when taken to the Moon would

  • remain the same

  • decrease

  • become zero

  • increase

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134.

The atmospheric air is held to the Earth by

  • gravity

  • winds

  • clouds

  • rotation of the Earth

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135.

The constituents of automobile exhaust that can cause cancer is/are

  • Oxides of nitrogen

  • Carbon monoxide

  • Polycyclic hydrocarbons

  • Lead

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136.

Which of the following could be used as fuel in propellant or rockets?

  • Liquid Hydrogen + Liquid Nitrogen

  • Liquid Oxygen + Liquid Argon

  • Liquid Nitrogen + Liquid Oxygen

  • Liquid Hydrogen + Liquid Oxygen

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137.

The addition of gypsum to portland cement helps in

  • increasing the strength of cement

  • rapid setting of cement

  • preventing rapid setting of cement

  • reduction in the cost of cement

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138.

White lung disease is prevalent among the workers of

  • Paper Industry

  • Cement Industry

  • Cotton Industry

  • Pesticide Industry

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139.

The Refrigerant 'FREON' is

  • Calcium Tetra Fluoride

  • Difluoro Dichloro Methane

  • Fluorspar and Felspar

  • Hydrofluosilicic Acid

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140.

Among the following materials sound travels fastest in

  • steel

  • air

  • vacuum

  • water

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