{"id":95559,"date":"2021-10-27T10:30:53","date_gmt":"2021-10-27T05:00:53","guid":{"rendered":"https:\/\/www.cbselabs.com\/?p=95559"},"modified":"2021-11-01T11:37:17","modified_gmt":"2021-11-01T06:07:17","slug":"alternative-communication-system-disaster-management-cbse-extra-questions","status":"publish","type":"post","link":"https:\/\/www.cbselabs.com\/alternative-communication-system-disaster-management-cbse-extra-questions\/","title":{"rendered":"Alternative Communication System Disaster Management CBSE Extra Questions"},"content":{"rendered":"

Alternative Communication System Disaster Management CBSE Extra Questions<\/span><\/strong><\/h2>\n

Alternative Communication System Disaster Management CBSE Class 10 Extra Questions With Solutions<\/h3>\n

According to new CBSE Exam Pattern,\u00a0MCQ Questions For Class 10 Social Science with Answers<\/a>\u00a0Carries 20 Marks.<\/p>\n

Question-1<\/span><\/strong>
\nWhy do Rescue and relief operations depend on an efficient communication system ?
\nSolution:<\/span><\/strong>
\nA well established communication system is very essential during a disaster. People have to be informed of impending disasters and they have to be given instructions to meet the disaster with least casualty.
\nRescue and relief operations depend a great deal on an efficient communication system as people have to be informed of impending disasters and they have to be given instructions to meet the disaster with least casualty.<\/p>\n

You can also download Class 10 Maths NCERT Solutions<\/strong><\/a> to help you to revise complete syllabus and score more marks in your examinations.<\/p>\n

Question-2<\/span><\/strong>
\nWhat is PSTN?
\nSolution:<\/span><\/strong>
\nPublic Switched Telephone Network \u2013 PSTN \u2013 is the most popular means of communication today. The PSTN connects all government and private offices, police stations, fire stations, hospitals and a majority of homes and business places by transmitting and receiving voices, fax and data.
\nQuestion-3<\/span><\/strong>
\nMention the different modes of emergency communication.
\nSolution:<\/span><\/strong>
\nThe different modes of emergency communication are \u2026\u2026\u2026
\nRadio communication
\n(a) Wireless radio communication network
\n(b) Amateur radio or HAM
\nSatellite based communication system
\n(a) Geo- stationary orbit satellites
\n(b) Asynchronous orbit satellites
\n(i) Observation satellite
\n(ii) Science satellite
\n(iii) Global positioning systems satellites.
\nQuestion-4<\/span><\/strong>
\nWrite a short note on wireless communication network.
\nSolution:<\/span><\/strong>
\nWireless radio communication network comprises of electromagnetic waves or radio waves that are propagated by an antenna. Radio waves have different frequencies and by tuning a radio receiver to a specific frequency one can receive the required signals.
\nBand frequencies.
\nVery low frequency Low frequency Medium frequency High frequency Very high frequency Ultra high frequency Super high frequency Extremely high frequency
\nHigh frequency bands can travel across the world. This band the radio waves are reflected from the ionosphere.
\nUltra high frequency bands are used in wireless walkie \/ talkie sets.
\nQuestion-5<\/span><\/strong>
\nWrite a short note on HAM.
\nSolution:<\/span><\/strong>
\nThere are 15,000 licensed HAM radio operators in India. HAM radio operators are known as Hams. Hams are expected to help the government during emergencies. Their network is used for communication during disasters. Hams are using satellites for communication nowadays.
\nAmateur radio stations are providing training for people who are interested in becoming HAM operators. The Indian Space Research Organisation (ISRO) has developed HAMSAT, a micro satellite, to provide satellite based services to HAM operators in India and all over the world.
\nQuestion-6<\/span><\/strong>
\nSatellite based communications are highly reliable during emergencies. Discuss.
\nSolution:<\/span><\/strong>
\nWhen information is transmitted through a satellite it is called Satellite based communication. Satellites are launched into space on rockets and they are put in orbit. Different satellites carry out different jobs such as weather forecasting and finding accurate locations.
\nCommunication satellites are usually radio relay stations and are referred to as COMSATs.
\nThe most important feature of a communication satellite is the transponder.
\nData, television images and telephonic voice are routinely received and re-broadcasted by the transponders of communication satellites.
\nSatellite based communication system is reliable during disasters as Communication satellites are in orbit in space and are not vulnerable to natural disasters on earth. Global communication links can be established with very small satellite antennas.
\nThe satellite phone is the most widely used means of communication during disasters. These phones provide reliable voice and data communication. They are handy and can be taken to any location.
\nThe government of India is providing the Disaster \/ Emergency Managers of all the districts with portable satellite phones so that proper communication is maintained among the local authorities, during disasters.
\nRadio communication and satellite based communications are highly reliable and are used during emergencies all over the world.
\nQuestion-7<\/span><\/strong>
\nWhy do Rescue and relief operations depend on an efficient communication system ?
\nSolution:<\/span><\/strong>
\nA well established communication system is very essential during a disaster. People have to be informed of impending disasters and they have to be given instructions to meet the disaster with least casualty.
\nRescue and relief operations depend a great deal on an efficient communication system as people have to be informed of impending disasters and they have to be given instructions to meet the disaster with least casualty.
\nQuestion-8<\/span><\/strong>
\nMention the different modes of emergency communication.
\nSolution:<\/span><\/strong>
\nThe different modes of emergency communication are \u2026\u2026\u2026
\nRadio communication
\n(a) Wireless radio communication network
\n(b) Amateur radio or HAM
\nSatellite based communication system
\n(a) Geo- stationary orbit satellites
\n(b) Asynchronous orbit satellites
\n(i) Observation satellite
\n(ii) Science satellite
\n(iii)Global positioning systems satellites.
\nQuestion-9<\/span><\/strong>
\nWrite a short note on HAM.
\nSolution:<\/span><\/strong>
\nThere are 15,000 licensed HAM radio operators in India. HAM radio operators are known as Hams. Hams are expected to help the government during emergencies. Their network is used for communication during disasters. Hams are using satellites for communication nowadays.
\nAmateur radio stations are providing training for people who are interested in becoming HAM operators. The Indian Space Research Organisation (ISRO) has developed HAMSAT, a micro satellite, to provide satellite based services to HAM operators in India and all over the world.
\n More Resources for CBSE Class 10:<\/strong><\/span><\/p>\n

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