SSC-Junior Engineer (Civil & Structural) Online Exam 2018

PAPER-I
GENERAL INTELLIGENCE AND REASONING

Total Questions: 50

41. The chemical name of Vitamin D3 is:

Correct Answer: A. Cholecalciferol
Solution:Cholecalciferol (C₂₇H₄₄O), also known as Vitamin D₃, and colecalciferol, is a type of Vitamin D which is made by the skin when exposed to sunlight; it is also found in some foods and can be taken as a dietary supplement. It is used to treat and prevent vitamin D deficiency and associated diseases, including rickets.

As a nutrient, Vitamin D exists in two forms. Vitamin D₂, comes from plant sources and Vitamin D₃, comes from animal sources. The chemical name of Vitamin D₂, is ergocalciferol. The chemical name of Vitamin D₃, is cholecalciferol. For poultry and fish, Vitamin D₂ has very low activity, so diets requiring supplementation should include the D₃ form of the Vitamin. Vitamin D₃, is found in fish oils and is made by irradiation of animal sterol.

42. Which of the following is NOT an ore of copper?

Correct Answer: B. Argentite
Solution:Copper ores can be grouped into three main classes, shown as follows with the major, most commonly encountered, copper minerals listed within each class:

Oxides: malachite, chrysocolla, azurite, cuprite, atacamite, native copper, copper-iron oxide minerals.

Secondary (supergene-enriched) sulfides: chalcocite, covellite.

Primary (hypogene) sulfides: chalcopyrite, bornite.

43. The formation of rainbow is NOT due to the _________ of light by suspended tiny water droplets.

Correct Answer: A. absorption
Solution:Rainbow is formed due to dispersion and total internal reflection. Tiny droplets of water due to very less mass gets suspended in the atmosphere and acts as a good optical medium. The sunlight, when changes medium, undergoes total internal reflection through these droplets thereby splitting in its components colours and hence results in rainbow formation. Rainbow is formed during rainy season due to refraction and total internal reflection of rays falling on suspended water droplets.

44. If a coastal area is affected by a high tide at 5 AM on Tuesday, it should normally experience next high tide at:

Correct Answer: D. 5.25 PM Tuesday
Solution:If a coastal area is affected by a high tide at 5 AM on Tuesday, it should normally experience next high tide at 5:25 pm Tuesday because the Earth rotates through two tidal "bulges" every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. High tides occur 12 hours and 25 minutes apart. It takes six hours and 12.5 minutes for the water at the shore to go from high to low, or from low to high.

45. Deepika Kumari, who bagged a silver medal at the 2020 Tokyo Olympics test event is an/a:

Correct Answer: B. Archer
Solution:India's top-ranked woman archer Deepika Kumari, clinched silver at the 2020 Tokyo Olympic Games test event. This was Deepika's first individual final in a world event since she won a gold at the third stage of the world cup in salt lake city in June 2018.

46. Zuzana Caputova was sworn in as the first female President of:

Correct Answer: A. Slovakia
Solution:Zuzana Caputová is a Slovak politician, lawyer, and environmental activist who has been President of Slovakia since 15 June 2019. Caputová is the first woman to hold the presidency, as well as the youngest president in the history of Slovakia, elected at the age of 45.

47. Which of the following software is used for running MP4 files on a computer?

Correct Answer: C. Windows Media Player
Solution:Windows Media Player (WMP) is a deprecated media player and media library application developed by Microsoft that is used for playing audio, video and viewing images on personal computers running the Microsoft Windows operating system, as well as on Pocket PC and Windows Mobile-based devices.

Editions of Windows Media Player were also released for classic Mac OS, Mac OS X and Solaris but development of these has since been discontinued.

Windows Media Player 12 adds native support for H.264 and MPEG-4 Part 2 video formats, ALAC, AAC audio and 3GP, MP4 and MOV container formats. Windows Media Player 12 is also able to play AVCHD formats.

48. Among the following personalities, who was NOT associated with Prarthana Samaj?

Correct Answer: A. Ishwar Chand Vidyasagar
Solution:Ishwar Chandra Vidyasagar, a towering personality of the mid 19th century, was born in a poor Brahmin family of Birsingha village in Bengal in 1820. From childhood, he was a brilliant student. He was a renowned Sanskrit scholar and became the Principal of the Sanskrit College in 1851. The Sanskrit College conferred on him the title of 'Vidyasagar' because of his profound knowledge of Sanskrit. He was related with Brahmo Samaj.

49. Which of the following statements about heavy water is NOT correct?

Correct Answer: D. It is completely safe to drink.
Solution:Heavy water has the same chemical formula as any other water-H₂O-with the exception that one or both of the hydrogen atoms are the deuterium isotope of hydrogen rather than the regular protium isotope (which is why heavy water is also known as deuterated water or D₂O).

You could consume a single glass of heavy water without suffering any major ill effects, however, should you drink any appreciable volume of it, you might begin to feel dizzy. That's because the density difference between regular water and heavy water would alter the density of the fluid in your inner ear.

50. In February 2019, which of the following countries included Hindi as its third official language to be used in its courts?

Correct Answer: A. UAE
Solution:UAE (Abu Dhabi) has decided to include Hindi as the third official language used in its courts, alongside Arabic and English as part of a move designed to improve access to justice. An estimated 3.3 million Indian experts live in UAE and large number of them are blue-collared workers.