#1
5th August 2014, 08:03 AM
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IES Exam Electronics and Telecommunication Engineering paper
I am looking for question paper for Indian engineering services electronics and telecommunication engineering examination in PDF file format?
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#2
5th August 2014, 09:40 AM
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Re: IES Exam Electronics and Telecommunication Engineering paper
Here I am giving you question paper for Indian engineering services electronics and telecommunication engineering examination in PDF file attached with it so you can get it easily. 1. Which of the following ,statements d a r e true *. - . * . q - .,v ,.? for the diamond structure ? . 1.. Coordination number is four.. 2. Packing fraction is 0.34. 3. Copper crystallizes into diamond strucLurc. 4, Lattice is FCC. (a) 1 only (b) 1, 2 and 4 (c) 2 and 3 only (dl 2, 3 and 4 2. Which of the following statements idare true for a good conductor of electi-icity ? f L 1.. Its conductivity decreases with increasing temperature. 2. Number of free electrons is around loz8 3. Its conductivity decreases with addition of impurities. ' 4. It is a good conductor of heat also. (a) 1, 2, 3 and 4 (b) 1 only (c) 2 and 3 only (d) 3 and 4 only 3. Which of the following materials is not an insulat,or ? (a) . Iliamond (b) Graphite Id) Lucite Consider the following statements : The conductivity of a metal has negative temperature coeff~cient since : 1. The electron concentration increases ' with temperature. ' 2. The electron mobility decreases with temperature. 3. The electron - lattice scattering rate increases with temperature. Which of the above statements islare correct ? (a) 1 only (b) l'and 2 (c) 2 and 3 (dl 3 only Which of the following is not a conducting material ? (a) copper (b) Tungsten . ' (c) . Germanium (dl Platinum What is the chemical bonding in silicon semiconductor ? . (a) Metallic (b) ' Ionic ( c ) Covalent (d) Van der Wads Which one of the following is a trivalent; material ? (a) Antimony (b) Phosphorus (c) Arsenic (d) Boron |
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