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PYQ 1200 Q/A Part - 1
PYQ 1200 Q/A Part - 2
PYQ 1200 Q/A Part - 3
PYQ 1200 Q/A Part - 4
PYQ 1200 Q/A Part - 5
Kerala PSC General Science Book Study Materials Page 192
Book's First Page(b) to prevent thermal radiation (c) to keep cool the engine (d) None of these Ans: (c) 234. The device to record and to reproduce the detection of the recording is called: [RRB ASM/GG 2004] (a) Audio phone (b) Detectophone (c) Gramophone (d) Microphone Ans: (c) 235. The law of floatation was invented by : [RRB Disel Assit. 2002] (a) Newton (b) Wright Brothers (c) Galileo (d) Archemedes Ans: (d) 236. ln isobaric and isochoric thermo dynamical processes: (a) pressure and volume remain constant (b) volume and pressure remain constant (c) pressure and temperature remain constant (d) None of these Ans: (a) 237. ln the adiabatic process, which one of the following remains constant: (a) heat (b) entropy (c) Both of these (d) None of these Ans: (c) 238. ln the ideal gas which type of energy is absent: (a) Kinetic energy (b) Potential energy 191