IES Solutions

Can you provide me the previous year question paper for Indian Engineering Services or IES (ESE) with its solution as I need it for preparation?

[shikha]

The previous year question paper for Indian Engineering Services or IES (ESE) with its solution is as follows:


Which one of the following helps experimental confirmation of the Crystalline state of 1. matter? (a) Shock compression (b) Photo emission (c) Conductivity measurements (d) X-ray diffraction Ans. (d)



The electrical conductivity of pure semiconductor is 2. (a) Proportional to temperature (b) Increases exponentially with temperature (c) Decreases exponentially with temperature (d) Not altered with temperature Ans. (a)



Consider the following statements pertaining to the resistance of a conductor: 3. 1. Resistance can be simply defined as the ratio of voltage across the conductor to the current through the conductor. This is, in fact, George Ohm's law. 2. Resistance is a function of voltage and current 3. Resistance is a function of conductor geometry and its conductivity. Which of the above statements are correct? (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3 Ans. (c)



The ratio of ionic radii of Cations i.e. 4. rc and that of Anions i.e. rA for stable and unstable ceramic crystal structure, is (a) Less than unity (b) Greater than unity (c) Unity (d) Either lesser or greater than unity Ans. (a)



Which one of the following statements is correct? 5. (a) For insulators the band-gap is narrow as compared to semiconductors it is narrow (b) For insulators the band-gap is relatively wide whereas for semiconductors it is narrow (c) The band-gap is narrow in width for both the insulators and conductors (d) The band-gap is equally wide for both conductors and semiconductors Ans. (b)