science & tech MCQ section 1 Practice Questions Answers Test with Solutions & More Shortcuts
science & tech PRACTICE TEST [7 - EXERCISES]
science & tech MCQ section 1
science & tech MCQ section 2
science & tech MCQ section 3
science & tech MCQ section 4
science & tech MCQ section 5
science & tech MCQ section 6
science & tech MCQ section 7
Question : 6
Which of the following statement(s) is/are correct about Mars Orbitor Mission (MOM)?
- India became the first Asian nation to successfully send a satellite to Mars’ orbit
- MOM is the India’s first inter-planetry mission
- The mission used Geostatinary Satellite Launch Vehicle (GSLV) for the launch
a) 1 and 2 only
b) 1 and 3 only
c) 1 only
d) 2 and 3 only
Answer »Answer: (a)
The mission used Polar Satellite Launch Vehicle (PSLV) for the launch.
Question : 7
Consider the following Statements:
- India’s multi-band communication satellite GSAT-16 was successfully put on a Geosynchronous Transfer Orbit (GTO) by the European launcher Ariane 5 VA221, from the Kourou space port in French Guiana.
- It is indigenously developed by Indian Space Research Organisation (ISRO).
- GSAT-16 satellite will help to boost public and private TV and radio services, largescale Internet and telephone operations.
a) 1 and 3 only
b) 2 and 3 only
c) 1 and 2 only
d) All of the above
Answer »Answer: (d)
After it was successfully placed in GTO, ISRO’s Master Control Facility (MCF) at Hassan, Karnataka has taken control of GSAT-16 satellite.
Question : 8 [SSC SAS 2010]
Which of the following countries launched world’s first satellite for monitoring Greenhouse Gases?
a) Russia
b) China
c) Japan
d) USA
Answer »Answer: (c)
The Greenhouse Gases Observing Satellite or GOSAT, also known as Ibuki (meaning breath in Japanese) is an Earth observation satellite and the world’s first satellite dedicated to greenhouse-gas monitoring. It measures densities of carbon dioxide and methane from 56,000 locations on the Earth’s atmosphere.
The GOSAT was developed by the Japan Aerospace Exploration Agency (JAXA) and launched on January 23, 2009, from the Tanegashima Space Center. Japan’s Ministry of the Environment and National Institute for Environmental Studies (NIES) use the data to track gases causing the greenhouse effect and share the data with NASA and other international scientific organizations.
Note: On Dec. 22, 2016, China has successfully sent its first carbon dioxide monitoring satellite TanSat into space via a Long March-2D rocket.
The spacecraft was launched from the Jiuquan Satellite Launch Center located in the Gobi Desert.
Question : 9 [SSC SO 2001]
Who regulates the slots where the geosynchronous satellites should be placed?
a) International Telecommunication Union
b) Glaukosmos
c) NASA
d) UN Secretary General
Answer »Answer: (a)
A geosynchronous orbital is a satellite with an orbit that keeps it over the same region of the earth at all times due to an orbital period that is the same as the earth itself (it takes the satellite one day to achieve an “orbit” of the earth).
A special type of geosynchronous orbital is a geostationary orbital, which is a satellite that stays over the same point on the surface of the earth at all times. The UN agency that regulates the use of geosynchronous orbitals is the International Telecommunications Union. Regulation of these satellites is necessary because there are a limited number of places to put them in orbit without the risk of interference with other satellites or collision with space debris.
In addition, the “orbital slots” (where the satellites are placed) over industrialized areas are in much more demand than in lesser developed areas. Slots over lesser developed countries with a location that would give satellite coverage of industrialized countries are also in demand.
Question : 10
A genetically engineered form of brinjal, known as the Bt-brinjal, has been developed. The objective of this is
a) to make it drought-resistant.
b) to make it pest-resistant.
c) to improve its taste and nutritive qualities.
d) to make its shelf-life longer.
Answer »Answer: (b)
Bt-Brinjal is named after the bacteria Bacillus thuringiensis. The pest resultant protein producing genes have been inserted from this bacteria to brinjal to make it pest -resistant.
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