Gewi education and welfare institute

1) Recombinant DNA technology (Genetic Engineering) allows genes to be transferred across different species of plants from animals to plants from microorganisms to higher organisms Select the correct answer using the codes given below. 1 only 2 and 3 only 1 and 3 only 1, 2 and 3     Click Here for Answer    Answer - (d)     2) With reference to the usefulness of the by-products of sugar industry, which of the following statements is / are correct? Bagasse can be used as biomass fuel for the generation of energy. Molasses can be used as one of the feed stocks for the production of synthetic chemical fertilizers. Molasses can be used for the production of ethanol. Select the correct answer using the codes given below. 1 only 2 and 3 only 1 and 3 only 1, 2 and 3     Click Here for Answer    Answer - (c)        3) Mycorrhizal biotechnology has been used in rehabilitating degraded sites be...

1) Other than resistance to pests, what are the prospects for which genetically engineered plants have been created? (A) To enable them to withstand drought (B) To increase the nutritive value of the produce (C) To enable them to grow and do photosynthesis in spaceships and space stations (D) To increase their shelf life     Click Here for Answer    Answer - (C)     2) What is the role of ultraviolet (UV) radiation in the water purification systems? 1. It inactivates/kills the harmful microorganisms in water. 2. It removes all the undesirable odours from the water. 3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water. Which of the statements given above is/are correct? (A) 1 only (B) 2 and 3 only (C) 1 and 3 only (D) 1, 2 and 3     Click Here for Answer    Answer - (A)     3) Graphene is frequently in news recently. What is its importa...

1) With reference to technologies for solar power production, consider the following statements: 1.’Photovoltaics’ is a technology that generates electricity by direct conversion of light into electricity, while ‘Solar Thermal’ is a technology that utilizes the Sun’s rays to generate heat which is further used in electricity generation process. 2. Photovoltaics generates Alternating Current (AC), while Solar Thermal generates Direct Current (DC). 3.  India  has manufacturing base for Solar Thermal technology, but not for Photovoltaics. Which of the statements given above is / are correct? (a) 1 only (b) 2 and 3 only (c) 1, 2 and 3 (d) None     Click Here for Answer    Answer - (a)     2) Which reference to Agni-IV Missile, which of the following statements is/are correct? 1. It is a surface-to-surface missile. 2. It is fuelled by liquid propellant only. 3. It can deliver one-tonne nuclear warheads about 7500 km away. Select the corr...

1) In which of the following activities are Indian Remote Sensing (IRS) satellites used?  1. Assessment of crop productivity 2. Locating groundwater resources 3. Mineral exploration 4. Telecommunications 5. Traffic studies Select the correct answer using the code given below . (a) 1, 2 and 3 only (b) 4 and 5 only (c) 1 and 2 only (d) 1, 2, 3, 4 and 5     Click Here for Answer    Answer - (a)     2) The term 'IndARC', sometimes seen in the news, is the name of (a) an indigenously developed radar system inducted into Indian Defence (b) India's satellite to provide services to the countries of Indian Ocean Rim (c) a scientific establishment set up by India in Antarctic region (d) India’s underwater observatory to scientifically study the Arctic region     Click Here for Answer    Answer - (d)     3) In the context of modern scientific research, consider the following statements about 'IceCube', a particle detector lo...

1) What is "Virtual Private Network" ? (a)  It is a private computer network of an organization where the remote users can transmit encrypted information through the server of the organization (b)  It is a computer network across a public internet that provides users access to their organization's network while maintaining the security of the information transmitted (c)  It is a computer network in which users can access a shared pool of computing resources through a service provider (d)  None of the statements (a), (b) and (c) given above is a correct description of Virtual Private Network     Click Here for Answer    Answer - (b)     2) What is the difference between a CFL and an LED lamp ? 1.   To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material. 2.   The average life span of a CFL is much longer than that of an LED lamp. 3.   A CF...

MCQs on Technology - 1 1.  What is  white - fi  technology? (a) Beaming internet over an area using helium balloon (b) Beaming internet over an area using solar drones (c) Beaming internet over an area using underground cable (d) Beaming internet over an area using unused television spectrum     Click Here for Answer    Answer - (d)     2.  Who among the following will benefit from a digital locker? (a) Persons wanting to hide his IP address while downloading torrents (b) Persons wanting to store his pirated movies, softwares and games (c) Persons wanting to run applications made by strangers, without the risk of malware (d) Person wanting to store government certificates on a cloud     Click Here for Answer    Answer - (d)     3.  Project  Varsha ,  India ’s new naval base under construction near which of the following cities? (a)  Kochi (b) Ka...