Q:

What is the position of metallic ion and non-metallic ion in a chemical formula?

A) Metal ion at second position	B) Non-metal ion at first position
C) Metal ion at first and non-metal ion at second position	D) No option is correct

Answer & Explanation Answer: C) Metal ion at first and non-metal ion at second position

Explanation:

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Filed Under: Chemistry
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Q:

Source of infection in diseases like Tuberculosis, Mumps and Whooping cough is

A) Direct contact	B) Droplets of saliva
C) Carrier organism	D) A vector

Answer & Explanation Answer: B) Droplets of saliva

Explanation:

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Filed Under: Biology

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Q:

Who became the first Asian women to sail around the world ?

A) Golda Meir	B) Ujwala Patil
C) Cleopatra	D) Sirimavo Bandaranaike

Answer & Explanation Answer: B) Ujwala Patil

Explanation:

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Q:

Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted.

A) rough white	B) rough black
C) shining white	D) shining black

Answer & Explanation Answer: B) rough black

Explanation:

Black surfaces are good emitters of heat. If the black surface is rough too, the emitting will be better. Shinning surfaces reflect black radiation . So if the black surface is also shining the effectiveness of emitting heat is lessened.

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Filed Under: Physics

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Q:

In which of the following examples will an athlete have maximum accelerated motion?

A) Running on an octagonal track	B) Running on a hexagonal track
C) Running on a rectangular track	D) Running on a circular track

Answer & Explanation Answer: D) Running on a circular track

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Cryogenic Engines find applications in

A) Frost - Free refrigerators	B) Sub-marine propulsion
C) Researches in superconductivity	D) Rocket technology

Answer & Explanation Answer: D) Rocket technology

Explanation:

Cryogenic Engines find applications in Rocket technology. A cryogenic rocket engine is a rocket engine that uses a cryogenic fuel or oxidizer, that is, its fuel or oxidizer are gases liquefied and stored at very low temperatures. Notably, these engines were one of the main factors of NASA's success in reaching the Moon by the Saturn V rocket.

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Filed Under: Physics
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Q:

Which of the following is "Blue Planet" ?

A) Jupiter	B) Mars
C) Earth	D) Saturn

Answer & Explanation Answer: C) Earth

Explanation:

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Filed Under: Indian Geography

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Q:

Group displacement law was given by

A) Bacquerel	B) Rutherford
C) Mendeleaf	D) Soddy and Fajan

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