11. Calorific value of liquid fuels can be determined by calorimeter. A. Boy's B. Junker's C. bomb D. none of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
12. Fixed carbon of coal during its proximate analysis is determined by A. Eschka process B. Kjeldahl process C. complete combustion of coal in oxygen D. substracting the sum of percentages of volatile matter and ash of dry coal from 100 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
13. For determination of ash in coke A. few drops of benzene is added to avoid the oxidation of coal B. temperature maintained is same as that for coal i.e. 775 ± 25°C C. muffle furnace is not used D. temperature maintained is 1050°C Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
14. Samples for the analysis of solid metallic scrap & alloys are normally taken by A. grinding B. drilling C. cutting D. coning and quartering Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
15. For complete analysis of iron ore, the size of the dried sample should be A. (about 100 microns) B. 200 mesh (about 74 microns) C. 3 mm D. -10 mm Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
16. Conradson method arid Ramsbottom method is used for the determination of . . . . . . . . of the fuel oil. A. sediment content B. carbon residue C. ash content D. flash point Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
17. Strohlein apparatus is used for the deter mination of the . . . . . . . . in ferrous materials e.g., iron or steel. A. graphitic carbon B. total carbon C. sulphur D. both B and C Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
18. Carrier agent used in gas analysis by chromatagraph for carrying of gas sample in adsorption coloumn is generally A. acetylene B. helium C. nitrogen D. either B or C Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
19. Fuel gas and flue gas samples are most conveniently collected in a A. test tube B. football bladder C. glass tube D. plastic bottle Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
20. Qualitative determination of H2S in gases is done by wetting a filter paper with . . . . . . . . and keeping it in the gas stream. The extent of brown or black colouration of the filter paper givesa rough estimate of H2S present in the gas. A. lead acetate B. methyl orange C. phenolphthalein D. ammonium hydroxide Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
