Questions

Who discovered radioactivity?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? d_c_d_cb_c_b

Find out the odd word/letters/number/number pair from the given alternatives.

His greatest achievement in the field of religious reform was the setting up of the Brahmo Sabha and the Brahmo Samaj. Who is he?

The _________ of a firm is a relationship between inputs used and output produced by the firm.

Which of the following is false?

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P: When all the credit worthy people were given loans to a logical limit, they ceased to be a part of the market.
Q: Even this would have been understandable if it could work as an eye opener.
R: Owing to the materialistic culture elsewhere, it was possible to keep selling newer products to the consumers despite having existing ones which served equally
well.
S: They were lured through advertising and marketing techniques of 'dustbinisation' of the customer; and then finally, once they became ready customers, they were
given loans and credits to help them by more and more.

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The first working steam­ powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale­ model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full­ scale, self ­propelled mechanical vehicle or automobile in about 1769; he also created a steam­ powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam ­powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam ­powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore.

The first full­scale, working steam ­powered tricycle was built by: