101. Which of the following fuels is the best for burning on chain grate stoker ?
102. The cuprous chloride used in orsat apparatus can absorb
103. Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher
104. Mott and Wheeler test is conducted on coke to find its
105. The pyragallol solution used in orsat apparatus can absorb
106. Gray-King Assay and Roga Index of coal is a measure of its
107. While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at
108. Low temperature oxidation of coal resulting from bad storage conditions does not decrease its
109. Main use of soft coke is as __________ fuel.
110. Desirable "Micum Index" values of metal-lurical coke are
111. In low temperature carbonisation of coal, the
112. Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if
113. Coking time in narrow by-product coke ovens is around __________ hours.
114. Blast furnace gas is a very poisonous gas because of its predominantly high __________ content.
115. Which of the following is a lean fuel gas ?
116. Which of the following fuel gases will require maximum amount of air for combustion of 1 Nm3 gas ?
117. High rate of heating of coke ovens
118. A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms.
119. Coalification means the
120. Hard coke is manufactured from
121. Percentage of nitrogen in blast furnace gas may be around
122. Very __________ coals are completely devoid of cokability i.e, it is non coking.