Questions

Q:

Consider the following statements with respect to Bitcoins or 'cryptocurrencies' as they are commonly known; I. Bitcoin is a decentralized electronic payment system II. Only a finite number of bitcoins can be created by miners III. Bitcoins are indivisible units of currency IV. Every single bitcoin transaction is recorded in a ledger called the blockchain. Which of the above statements are correct?

A) (i), (ii) and (iii) B) (i), (iii) and (iv)
C) (i), (ii) and (iv) D) (i), (ii), (iii) and (iv)
 
Answer & Explanation Answer: C) (i), (ii) and (iv)

Explanation:

A software developer called Satoshi Nakamoto proposed bitcoin, which was an electronic payment system based on mathematical proof. The idea was to produce a currency independent of any central authority, transferable electronically, more or less instantly, with very low transaction fees. Bitcoin’s most important characteristic, and the thing that makes it different to conventional money, is that it is decentralized. Bitcoin is created digitally, by a community of people that anyone canjoin. Bitcoins are ‘mined’, using computing power in a distributed network.This network also processes transactions made with the virtual currency, effectively making bitcoin its own payment network.The bitcoin protocol –the rules that make bitcoin work –say that only 21 million bitcoins can ever be created by miners. However, these coins can be divided into smaller parts (the smallest divisible amount is one hundred millionth of a bitcoin and is called a ‘Satoshi’, after the founder of bitcoin). Bitcoin stores details of every single transaction that ever happened in the network in a huge version of a general ledger, called the blockchain.

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Filed Under: Indian Economy

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Q:

Which of the following organisms does not fit into the Cell Theory?

A) Bacteria B) Virus
C) Fungi D) Plants
 
Answer & Explanation Answer: B) Virus

Explanation:
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Filed Under: Biology
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Q:

Which of the following is a commercial source of energy?

A) Agricultural waste B) Dried dung
C) Sun D) Natural gas
 
Answer & Explanation Answer: D) Natural gas

Explanation:
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Filed Under: Chemistry
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Q:

Which of the following elements has the lowest melting point?

A) Platinum B) Carbon
C) Cobalt D) Krypton
 
Answer & Explanation Answer: D) Krypton

Explanation:
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Filed Under: Chemistry
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Q:

Chandragiri Fort is a historical fort, built in the 11th century. It is located in ______.

A) Karnataka B) Maharashtra
C) Madhya Pradesh D) Andhra Pradesh
 
Answer & Explanation Answer: D) Andhra Pradesh

Explanation:
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Filed Under: Indian Geography
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Q:

Psidium guajava is the scientific name of ___________.

A) Guava B) Mango
C) Bamboo D) Jack fruit
 
Answer & Explanation Answer: A) Guava

Explanation:
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Filed Under: Biology
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Q:

Among the given nutrients, milk is a poor source of which of the following ?

A) Vitamin 'C' B) Calcium
C) Protein D) Carbohydrate
 
Answer & Explanation Answer: A) Vitamin 'C'

Explanation:
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Filed Under: General Science
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Q:

Which Schedule of the constitution of India lists the States and Union Territories of India?

A) First Schedule B) Second Schedule
C) Third Schedule D) Fourth Schedule
 
Answer & Explanation Answer: A) First Schedule

Explanation:
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Filed Under: Indian Politics

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