Related Questions

Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg.
A 1000
B 4000
C 8000
D 15000
Anthracite coal
A Contains more volatile matter than bituminous coal
B Ignites more easily than bituminous coal
C Is essentially a coking coal
D Burns with short, bluish, yellow-tipped flame producing very little smoke
Ignition temperature decreases progressively from anthracite to lignite, because
A Volatile matter content increases
B Carbon content decreases
C Moisture content increases
D Ash content increases
Efficient burning of anthracite coal requires
A Low preheat of air
B Fine grinding
C High excess air
D All of the above
In a class of 120 students, 60 percent can speak French and the rest can speak only English. If 25 percent of those in the class who can speak French can also speak English, how many of the students in the class can speak English?
A 54
B 60
C 66
D 84
In a class of 120 students. 60 percent can speak French and the rest can speak English only. If 25 percent of those in the class who can speak French can also speak English, how many of the students in the class can speak English?
A 54
B 60
C 66
D 84
In a class of 120 students. 60 percent can speak English and the rest can speak only Bengali. If 25 percent of those in the class who can speak English can also speak Bengali, how many of the students in the class can speak Bengali?
A 54
B 60
C 66
D 84
In a class of 120 students. 70 percent can speak Bengali and the rest can speak English only. If 25 percent of those in the class who can speak English can also speak Bengali, how many of the students in the class can speak Bengali?
A 57
B 60
C 84
D 48
In a class of 120 students 70 percent can speak only Bengali and the rest can speak English . If 25 percent of those in the class who can speak English can also speak Bengali , how many of the students in the class can speak bengali?
A 39
B 48
C 84
D 93
Six men can earn as much as eight women ,two women can earn earn as much as three boys and four boys can earn as much as five girls.If a girl can earn Tk. 50 a day , what amount can a man earn in a day?
A TK.115
B Tk.125
C Tk.135
D Tk.150

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