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1611. Which of the following groups of instruments is required to have communication link between two television relay centers ?
A. Microwave link, booster relay, satellites
B. Radio telescope, microwave link, booster relay, telephone
C. Microwave link, telephone, booster relay, satellite
D. None of these
Explanation:
1612. Which of the following computer languages is maximum used for business and scientific purposes ?
A. BASIC
B. FORTRAN
C. COBOL
D. None of these
Explanation:
1613. The final products of combustion of ethane are
A. Carbon and Oxygen
B. Ethylene and Hydrogen
C. Water and Carbon monoxide
D. Carbon dioxide and water
Explanation:
1614. Soda-acid fire extinguisher involves the reaction between
A. sodium hydroxide and nitric acid
B. sodium bi carbonate and sulphuric acid
C. sodium sulphate and carbonic ackd
D. sodium carbonate and hydrochloric acid
Explanation:
1615. Which of the following statements is/are true ? 1. The process of oxidation leads to a gain of electrons. 2. The process of oxidation leads to a loss of electrons. 3. The process of reduction leads to a gain of electrons. 4. The process of reduction leads to a loss of electrons.
A. 1 only
B. 1 and 4
C. 2 and 3
D. 4 only
Explanation: