A. Would require smaller combustion chamber
B. Produces very little of tar and gas on carbonisation
C. Ignites easily and burns with long smoky flame
D. All A., B. and C.
Related Mcqs:
- A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon _________________?
A. Is less liable to spontaneous combustion on storage
B. Is more difficult to ignite and produces a shorter flame
C. Requires smaller combustion space and less secondary air
D. None of these - A coal having high volatile matter content will ________________?
A. Give less yield of tar and gas on carbonisation
B. Burn with a small non-smoky flame
C. Have a very high calorific value
D. None of these - A coal containing high amount of volatile matter will have__________________?
A. Low ignition temperature
B. Very little ash content
C. High fusion point of its ash
D. Low adiabatic flame temperature - A coal having higher volatile matter content, has lower_________________?
A. Smoking tendency on burning
B. Coke oven gas yield on carbonisation
C. Chance of catching fire during storage in open space
D. Ignition temperature - A coal having higher volatile matter content will necessarily have lower____________________?
A. Ash fusion temperature
B. Calorific value
C. Ignition temperature
D. Caking index - 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 - ‘Fat’ coal means a coal having ___________________?
A. Low calorific value
B. High volatile matter
C. Low ash content
D. Non smoking tendency - Volatile matter content in coking coal may be about _____________ percent?
A. 1
B. 7
C. 22
D. 46 - Coal is heated in absence of air for 7 minutes at a temperature of about ______________ °C, during its volatile matter determination for proximate analysis?
A. 550
B. 750
C. 950
D. 1150 - A coal containing very high percentage of durain is called ______________ coal?
A. Bright
B. Splint
C. Non-banded
D. Boghead
