Daily Static MCQs Quiz for UPSC, IAS, UPPSC/UPPCS, MPPSC. BPSC, RPSC & All State PSC Exams
Subject : Science and Technology (24 November 2023)
1. Consider the following statements regarding 3D bioprinting technology:
1. 3D bioprinting utilizes the 3D printing techniques to combine cells, growth factors, and biomaterials to fabricate biomedical parts.
2. 3D bioprinting involves a layer-by-layer method to create tissue-like structures that are later used in various medical and tissue engineering fields.
3. 3D bioprinting can be used to reconstruct tissue from various regions of the body.
How many of the above statements is/are correct?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: (C)
Explanation: Three dimensional (3D) bioprinting is the utilization of 3D printing–like techniques to combine cells, growth factors, and/or biomaterials to fabricate biomedical parts, often with the aim of imitating natural tissue characteristics. Generally, 3D bioprinting can utilize a layer-by-layer method to deposit materials known as bio-inks to create tissue-like structures that are later used in various medical and tissue engineering fields. There are many applications for 3D bioprinting in the medical field. An infant patient with a rare respiratory disease known as tracheobronchomalacia (TBM) was given a tracheal splint that was created with 3D printing. 3D bioprinting can be used to reconstruct tissue from various regions of the body. Hence, all statements are correct.
2. Consider the following statements regarding Scramjet Engine:
1. It works based on the technology of Air Breathing Propulsion System.
2. The Scramjet engine designed by ISRO uses Hydrogen as fuel and the Oxygen from the atmospheric air as the oxidizer.
Which of the above statements is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Answer: (C)
Explanation: The first experimental mission of ISRO’s Scramjet Engine towards the realization of an Air Breathing Propulsion System was successfully conducted on August 28, 2016 from Satish Dhawan Space Centre SHAR, Sriharikota. The Scramjet engine designed by ISRO uses Hydrogen as fuel and the Oxygen from the atmospheric air as the oxidizer. Hence, both statements are correct.
3. Consider the following statements regarding Artemis program:
1. The Artemis program is a robotic Moon exploration program led by National Aeronautics and Space Administration (NASA).
2. The program’s long-term goal is to establish a permanent base on the Moon, to facilitate human missions to Mars became feasible.
3. The Artemis program attempts to study the possibility of running the International Space Station from the surface of the moon.
How many of the above statements is/are correct?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: (B)
Explanation: The Artemis program is a robotic and human Moon exploration program led by the United States’ National Aeronautics and Space Administration (NASA) along with three partner agencies—the European Space Agency (ESA), the Japan Aerospace Exploration Agency (JAXA), and the Canadian Space Agency (CSA). The Artemis program is intended to re-establish a human presence on the Moon for the first time since the Apollo 17 mission in 1972. The main parts of the program are the Space Launch System (SLS), the Orion spacecraft, the Lunar Gateway space station, and the commercial Human Landing Systems. The program’s long-term goal is to establish a permanent base on the Moon, to facilitate human missions to Mars became feasible. Hence, statement 3 is not correct.
4. Which among the following statements best describes the term ‘Black Gold’:
(a) Coal and its derivatives
(b) Gold extracted from Placer deposits
(c) Petroleum and its derivatives
(d) Residual that remain after Gold extraction
Answer: (C)
Explanation: Petroleum is found between the layers of rocks and is drilled from oil fields located in off-shore and coastal areas. This is then sent to refineries which process the crude oil and produce a variety of products like diesel, petrol, kerosene, wax, plastics and lubricants. Petroleum and its derivatives are called Black Gold as they are very valuable. Hence, option (c) is correct.
5. In the context of cybersecurity, what are Botnets?
(a) A stand-alone malware computer programme that replicates itself in order to spread to other computers.
(b) Network of private computers infected with malicious software and controlled as a group without the owners’ knowledge.
(c) A set of web pages that may intentionally be used to cause a web crawler to make an infinite number of requests.
(d) A computer programme designed to assist in the sending of spam.
Answer: (B)
Explanation: Botnet is a combination of the words robot and network. Botnets have been identified as growing security threat. A network of private computers infected with malicious software and controlled as a group without the owners’ knowledge, e.g. to send spam. Hence, statement (b) is correct.
