Related Questions

Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.
A 500
B 750
C 950
D 1100
Ultimate analysis of coal determines its __________ content.
A Carbon, hydrogen, nitrogen & sulphur
B Carbon, ash, sulphur & nitrogen
C Carbon, sulphur, volatile matter & ash
D Carbon, volatile matter, ash & moisture
The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always
A 1
B > 1
C Unpredictable
Proximate analysis of fuel is determination of percentage of
A Carbon, hydrogen, nitrogen, sulphur, moisture
B Fixed carbon, ash, volatile matter, moisture
C Higher calorific value
D Lower calorific value
Which of the following substance will have same percentage in both proximate and ultimate analysis?
A Ash
B Volatile matter
C Moisture
D Hydrogen
The proximate analysis of fuel lists
A Various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as percents by volume
B Various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as percents by weight
C Fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash
D Fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash
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
Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent.
A 15 to 25
B 35 to 45
C 55 to 75
D 75
Choose the appropriate word as antonym : Proximate :
A complete
B distant
C insincere
D inquisitive
The extent to which proximate procedures are related to one another is known as.
A Coupling
B Balancing
C Cohesion
D Co-relation

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