Related Questions

Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.
A 400-500
B 900-1000
C 1400-1500
D 1700-1800
Which of the following is a single stage, fixed bed high pressure coal gasification process?
A Winkler process
B Kopper-Totzek process
C Lurgi Process
D None of these
High temperature in gasification of coal favours
A High production of CO2
B Low production of CO2
C High production of CO
D Both B and C
Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction?
A 2CO ⟷ C + CO2
B CO + H2O ⟷ CO2 + H2
C C + H2O ⟷ CO + H2
D C + 2H2O ⟷ CO2 + 2H2
Which of the following coal gasification processes will produce gas having maximum methane content?
A Winkler process
B Lurgi process
C Kopper-Totzek process
D All of the above
Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.
A 1000
B 4000
C 6000
D 8000
A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?
A 1
B 114
C 134
D 112
In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.
A Equal to
B Less than
C More than
D None of these
A coal containing very high percentage of durain is called __________ coal.
A Bright
B Splint
C Non-banded
D Boghead
Which of the following oil gasification processes is non-catalytic?
A Semet-Solvay process
B Segas process
C Onia-Gegi process
D Steam reforming of naphtha

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