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Q:

Which of the following processes is responsible for causing rain?

A) Filtration B) Evaporation and Condensation
C) Evaporation D) Condensation
 
Answer & Explanation Answer: B) Evaporation and Condensation

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Q:

With whom did the Government of India sign a $ 120 million loan agreement to complete double-tracking and electrification of railway tracks along high-density corridors to improve the operational efficiency of India's railway network?

A) European Bank B) African Development Bank
C) International Monetary Fund (IMF) D) Asian Development Bank
 
Answer & Explanation Answer: D) Asian Development Bank

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Q:

"Smart Money" term is used for

A) Credit Card B) Internet Banking
C) eBanking D) Cash with Public
 
Answer & Explanation Answer: A) Credit Card

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Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Q:

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is half as that of earth is _________________.

 

A) 2g B) g/4
C) g/2 D) 4g
 
Answer & Explanation Answer: D) 4g

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Q:

The commonly used thermometric substance is _____.

A) mineral oil B) Alcohol
C) Mercury D) Petrol
 
Answer & Explanation Answer: C) Mercury

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Q:

Which of the following fuels causes minimum environmental pollution?

A) Diesel B) Kerosene
C) Hydrogen D) Coal
 
Answer & Explanation Answer: C) Hydrogen

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Q:

The _________________ is the second supersonic fighter developed by Hindustan Aeronautics Limited (HAL) after the HAL HF-24 Marut. 

A) Trishul  B) Prithavi
C) Vikrant  D) Akash 
 
Answer & Explanation Answer:

Explanation:

The Tejas is the second supersonic fighter developed by Hindustan Aeronautics Limited (HAL) after the HAL HF-24 Marut. As of 2016 the Tejas Mark 1 is in production for the Indian Air Force (IAF) and the naval version is undergoing flight tests for Indian Navy (IN). 

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