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Science & Technology Mixed Quiz: Set 16

  • 20 questions
  • 20 minutes
  • Difficulty: Medium
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About this quiz

Set 16 of the Science & Technology mixed quiz has 20 multiple-choice questions from 9 different topics of the subject: Telecom: 4G, 5G and 6G, Green Hydrogen and Clean Energy Technology, Supercomputers of India and more. 5 of them were asked in real previous-year papers. A topic quiz checks one chapter; this set revises the whole subject at once, the way an exam paper does, where the next question can come from any chapter. Every question carries an explanation of why the correct option is right and why the others are wrong. Keep to the timer, read the explanations at the end, and go back to the notes of any topic where you slipped.

Questions in this quiz

20 questions with answers and explanations

Q2.Science & TechnologyAsked in: RRB NTPC · 10 May 2022, Shift 1Medium

When did PM Narendra Modi announce National Hydrogen Mission to generate hydrogen from green energy sources?

  1. A.May 2021
  2. B.November 2021
  3. C.August 2021
  4. D.January 2021
Show answer
Correct answer: C. August 2021

The Prime Minister announced the National Hydrogen Mission in his Independence Day speech from the Red Fort on 15 August 2021, with the aim of making India a hub for producing and exporting green hydrogen.

Q4.Science & TechnologyMedium

The National Quantum Mission aims to build intermediate scale quantum computers of how many physical qubits in eight years?

  1. A.5 to 50 physical qubits
  2. B.50 to 1,000 physical qubits
  3. C.1,000 to 5,000 physical qubits
  4. D.10,000 to 50,000 physical qubits
Show answer
Correct answer: B. 50 to 1,000 physical qubits

This is the headline target stated when the Cabinet approved the mission, and it is to be achieved on more than one hardware platform, including superconducting and photonic technology, rather than on a single design.

Q5.Science & TechnologyMedium

Which ITU standard family corresponds to 5G?

  1. A.IMT-2000
  2. B.IMT-Advanced
  3. C.IMT-2020
  4. D.IMT-2030
Show answer
Correct answer: C. IMT-2020

The International Telecommunication Union names each generation of mobile telephony by a standard family, and 5G is IMT-2020, whose requirements include a peak downlink rate of 20 Gbps, a user experienced rate of 100 Mbps, one millisecond of air interface latency and a million connected devices in a square kilometre.

Q6.Science & TechnologyMedium

Which of the following is a second generation biofuel feedstock?

  1. A.Sugarcane juice
  2. B.Maize grain
  3. C.Paddy straw
  4. D.Edible mustard oil
Show answer
Correct answer: C. Paddy straw

Second generation biofuels are made from lignocellulosic biomass that is not food, such as paddy straw, wheat straw, bagasse, cotton stalk and municipal solid waste; the cellulose must first be broken down into fermentable sugars, which makes the process costlier and earns these fuels the name advanced biofuels.

Q9.Science & TechnologyEasy

In 4G mobile networks, LTE stands for:

  1. A.Long Term Evolution
  2. B.Linear Transmission Encoding
  3. C.Low Traffic Ethernet
  4. D.Local Transfer Exchange
Show answer
Correct answer: A. Long Term Evolution

LTE is the radio technology through which 4G was delivered; the name was chosen because it was presented as the long-term evolution of the earlier 3G standards rather than a break with them.

Q10.Science & TechnologyEasy

In a p-type semiconductor, the majority charge carriers are:

  1. A.Electrons
  2. B.Holes
  3. C.Protons
  4. D.Positive ions
Show answer
Correct answer: B. Holes

A trivalent dopant such as boron, aluminium, gallium or indium forms only three covalent bonds with the surrounding silicon atoms, leaving one bond incomplete; that vacancy behaves as a mobile positive carrier called a hole, and holes therefore become the majority carriers while thermally generated electrons remain the minority carriers.

Q11.Science & TechnologyAsked in: RRB Group D · 15 Sept 2022, Shift 3Medium

What is the name of the supercomputer designed and installed by Centre for Development of Advanced Computing (CDAC) at IIT Roorkee, under Phase II of National Supercomputing Mission (NSM) in March 2022?

  1. A.PARAM Ganga
  2. B.PARAM Bheem
  3. C.PARAM Yuva
  4. D.PARAM Yamuna
Show answer
Correct answer: A. PARAM Ganga

PARAM Ganga was set up at IIT Roorkee in 2022 under the second phase of the National Supercomputing Mission, and it was designed and installed by C-DAC.

Q12.Science & TechnologyAsked in: SSC CHSL · 12 April 2021, Shift 2Hard

As per the standards set by the Department of Telecom, Government of India, for all the new designs of mobile handsets, the permissible Specific Absorption Rate (SAR) limit is _______ averaged over 1 gram of human tissue with effect from 1st September 2012.

  1. A.1.8 W/kg
  2. B.2.1 W/kg
  3. C.2.2 W/kg
  4. D.1.6 W/kg
Show answer
Correct answer: D. 1.6 W/kg

The Specific Absorption Rate measures how much radio energy from a handset the body takes in, in watts per kilogram of tissue.

Q13.Science & TechnologyHard

The peak downlink data rate target set for 5G under IMT-2020 is:

  1. A.1 Gbps
  2. B.10 Gbps
  3. C.20 Gbps
  4. D.100 Gbps
Show answer
Correct answer: C. 20 Gbps

Under IMT-2020 the peak downlink data rate for 5G is set at 20 gigabits a second, with 10 gigabits a second in the uplink; these are laboratory peaks under ideal conditions, not the speed a subscriber sees, and the separate target for the user experienced rate is 100 megabits a…

Q16.Science & TechnologyMedium

Nirbhay, developed by DRDO, is best described as a

  1. A.Supersonic cruise missile
  2. B.Long range subsonic cruise missile
  3. C.Intercontinental ballistic missile
  4. D.Surface to air missile
Show answer
Correct answer: B. Long range subsonic cruise missile

Nirbhay flies below the speed of sound but for a much greater distance than BrahMos, staying low to avoid radar, and it can change course in flight and loiter over an area before striking.

Q20.Science & TechnologyMedium

The National Supercomputing Mission is steered jointly by which two bodies of the Government of India?

  1. A.Ministry of Education and UGC
  2. B.MeitY and the Department of Science and Technology
  3. C.ISRO and the Department of Atomic Energy
  4. D.NITI Aayog and the Ministry of Earth Sciences
Show answer
Correct answer: B. MeitY and the Department of Science and Technology

The National Supercomputing Mission, launched in 2015, is run jointly by the Ministry of Electronics and Information Technology and the Department of Science and Technology, and the work on the ground is carried out by C-DAC Pune along with the Indian Institute of Science, Bengaluru.

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