Related Questions

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
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
The ultimate analysis of coal consists of the determination of the percentage of
A Carbon
B Hydrogen and nitrogen
C Sulphur and ash
D All of these
The ultimate tensile stress for mild steel is __________ the ultimate compressive stress.
A Equal to
B Less than
C More than
D None of these
The ultimate strength in tension for steel is __________ times the ultimate strength in shear.
A 0.5
B 0.9
C 1.5
D 2.5
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
For steel, the ultimate strength in shear as compared to ultimate strength in tension is
A $$\frac{1}{2}$$
B $$\frac{1}{3}$$
C $$\frac{1}{4}$$
D $$\frac{2}{3}$$
The ultimate tensile stress of mild steel compared to ultimate compressive stress is
A Same
B More
C Less
D Unpredictable
Proximate analysis of coal determines its __________ content.
A moisture, ash, sulphur & volatile matter
B moisture, volatile matter, ash & fixed carbon
C moisture, sulphur, nitrogen & fixed carbon
D none of the mentioned
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

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