Related Questions

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
A Sodium sulphide & sodium carbonate
B Sodium sulphite & sodium carbonate
C Sodium sulphite & sodium sulphide
D None of these
Paper pulp produced by kraft/sulphate process is
A Bleached easily
B Dull white in color
C Strong fibrous
D Dark colored
In the kraft (sulphate) process for the paper manufacture, the digestor is made of
A Cast iron
B Stainless steel
C Karbate carbon
D Wrought iron
The manufacture of Kraft pulp is done by a/an __________ process.
A Alkaline
B Acidic
C Neutral
D None of these
In a city 40% of the people have black hair, 25% have black eyes and 10% have both black hair and black eyes. What percentage of the people in the city has neither black hair nor black eyes?
A 35
B 40
C 45
D 50
In a certain city 40% of the people have black hair, 25% have black eyes and 10% have both black hair and black eyes. What percentage of the people in the city have neither black hair nor black eyes?
A 35
B 40
C 45
D 50
Black liquor is converted into white liquor by
A Evaporation and burning the concentrate followed by causticisation of products
B Multi-effect evaporation only
C Selective liquid extraction
D Extractive distillation
In sulphate pulp manufacture, the pressure and temperature in the digestor is
A 10 atm., 800 °C
B 10 atm., 170-180°C
C 1 atm., 170 - 180°C
D L atm., 800°C
একটি থলেতে 4 টি সাদা এবং 2 টি কালো বল আছে। অপর একটি থলেতে 3 টি সাদা ও 5 টি কালো বল আছে। যদি প্রত্যেক থলে হতে একটি করে বল উত্তোলন করা হয়, তবে বলদ্বয় সাদা হওয়ার সম্ভাবনা কত? (A bag contains 4 white and 2 black balls. Another bag contains 3 white and 5 black balls. If one ball is drawn from each bag, what is the probability that both balls are white?)
A 4/6
B 3/8
C 1/4
D 3/4
The major constituent of black liquor generated during paper manufacture is sodium
A Sulphate
B Carbonate
C Hydroxide
D Bi-carbonate

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