Related Questions

Gray King Assay and Swelling Index of a coal is a measure of its
A Swelling characteristics
B Abradability
C Agglutinating properties
D Resistance to impact breakage
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
Caking index of a coal is a measure of its
A Abradability
B Reactivity
C Agglutinating (binding) properties
D Porosity
Softening temperature of coal ash is a measure of the __________ of coal.
A Caking tendency
B Coking tendency
C Clinkering tendency
D Size stability
Prothrombin time assay
A Is done in hepatic failure
B Is related to vitamin K dependent factors
C Is monitored during oral anticoagulant therapy
D Involves the intrinsic pathway of coagulation
E Is monitored during heparin therapy
If a regular polygon has 6 sides then the measure of its interior angle is greater than the measure of its exterior angle by how many degrees?
A 90\u00b0
B 100\u00b0
C 60\u00b0
D 108\u00b0
Cannel coal and boghead coal are the examples of
A Humic coals
B Liptobiolites
C Sapropelic coals
D None of these
The liquid used for the washing of coal in an industrial coal washery is a mixture of water and
A Carbon tetrachloride
B Sand (40%)
C Mineral oil of high viscosity & specific gravity (1.6)
D None of these
In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced.
A Concentrate
B Tailing
C Middling
D None of these
In a thermal power plant, coal from the coal handling plant is moved to the boiler bunker through a
A Belt conveyor
B Bucket conveyor
C Fork lift truck
D Overhead crane

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