UGC NET Paper1 Previous Year Solved Papers - 6th December 2019 Evening Shift
41. Identify the correct sequence of biomass fuels in terms of their energy content per unit mass
- Option : D
- Explanation : The energy density of a fuel per unit mass is called the specific energy of that fuel. The coconut shell has a high calorific value of 20.8MJ/kg and can be used to produce steam, energy-rich gases, bio-oil, biochar etc. The "caloric content" dried wood is about 19 to 20 MJ/kg. While one dung cake of an average size gives 2100 kJ worth of energy.
- Option : C
- Explanation : There was once a time when CPU clock speed increased dramatically from year to year. in the 90s and early 2000s processors increased at incredible speeds, shooting from 60 MHz Pentium chips to gigahertz level processors within a decade. But around 2005, the top CPU clock speed of the high-end processors settled around 4 GHz and hasn't increased much since then. Now greater improvements in power come from multi-core processor designs. As a result, we see chips like AMD's recent offerings, with a dramatically increased number of cores. These modern transistors and Chips have increased the power of processors. Thus CPU clock speed need not to increase.
- Option : C
- Explanation : A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room (with any brand of computer), building or group of buildings; however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves. The acronym ISP is 'internet service provider'. It provides services for accessing, using, or participating in the internet.
- Option : C
- Explanation : The National Policy of Education of 1986 and Programme of Action of 1992 provided a significant formulation regarding the content and process of education. District Institutes of Education and Training (DIET) should be established with the capability to organize pre-service and in-service courses for elementary school teachers and for the personnel working in nonformal and adult education. As DIETs get established, sub-standard institutions should be phased out. Selected Secondary Teacher Training Colleges should be upgraded to complement the work of the State Councils of Educational Research and Training.
