Questions

Q:

Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic table?

A) Scandium B) Gallium
C) Titanium D) Germanium
 
Answer & Explanation Answer: B) Gallium

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Q:

Which of the following elements has a total of 3 shells with 8 electrons in the last orbit?

A) Ar B) P
C) S D) Al
 
Answer & Explanation Answer: A) Ar

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Q:

Which of the following states has the maximum area of Mangrove forest?

A) Rajasthan B) Uttar Pradesh
C) Sikkim D) West Bengal
 
Answer & Explanation Answer: D) West Bengal

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Q:

The pH of a solution, whose hydrogen ion concentration is 1 x 10 mole per litre, will be ____.

A) 7 B) 5
C) 4 D) 6
 
Answer & Explanation Answer: B) 5

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Q:

When the productive capacity of the economic system of state is inadequate to create sufficient number of jobs, it is called _______

A) seasonal unemployment B) structural unemployment  
C) disguised unemployment   D) cyclical unemployment
 
Answer & Explanation Answer: D) cyclical unemployment

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Q:

The marginal propensity to consume lies between ____________.

A) 0 to Infinity B) 0 to 1
C) 1 to Infinity D) 0 to 10
 
Answer & Explanation Answer: B) 0 to 1

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Q:

 What is child sex ratio for 1000 males as per census 2011? 

A)  919 females  B) 921 females 
C) 927 females  D) 925 females 
 
Answer & Explanation Answer: A)  919 females 

Explanation:

As per the Census, 2011 the child sex ratio (0-6 years) has shown a decline from 927 females per thousand males in 2001 to 919 females per thousand males in 2011.

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Q:

Which one of the following statements about reusable space vehicle of ISRO is not correct?

A) In June 2016, ISRO successfully launched India’s first reusable space vehicle. B) The space vehicle was launched from Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh.
C) The reusable launch vehicle climbed to a height of 65 km before automatically steering back for landing. D) The vehicle was initially boosted by a rocket that contained liquid fuel.
 
Answer & Explanation Answer: A) In June 2016, ISRO successfully launched India’s first reusable space vehicle.

Explanation:

May 23, 2016 ISRO successfully flight-tested India’s first winged body aerospace vehicle operating in hypersonic flight regime. In this experimental mission, the HS9 solid rocket booster carrying RLV-TD lifted off from the First Launch Pad at Satish Dhawan Space Centre, Sriharikotaat 07:00 hr IST. After a successful flight of 91.1second, HS9 burn out occurred, following which both HS9 and RLV-TD mounted on its top coasted to a height of about 56 km. At that height, RLV-TD separated from HS9 booster and further ascended to a heightof about 65 km.

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