Related Questions

One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one
A Hour
B Day
C Minute
D Second
Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced.
A Colour
B Moisture content
C Ash content
D Volatile matter
During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass.
A Density
B Porosity
C Electrical resistivity
D None of these
In a group of 60 people, 27 like coke and 42 like borhani and each person likes at least one of the two drinks How many people like both coke and borhani?
A 9
B 129
C 69
D 15
ভূমির সমান্তরাল 24 m দীর্ঘ একটি সেতুর ওজন 5 ton । সেতুটি তার দুই প্রান্তে দুইটি থামের উপর অবস্থিত । যদি 3 ton ওজনের একটি গাড়ী সেতুটির এক প্রান্ত হতে 23 অংশ পথ দূরে তার উপরে দাঁড়ায়, তবে থাম দুইটির উপর চাপের পরিমাণ বের কর ।
A 4.5 ton-wt; 3.5 ton-wt
B 5.5 ton-wt; 3.5 ton-wt
C 4.5 ton-wt; 5.5 ton-wt
D None
A steel mill produces 180 tons of steel per month Raw materials cost for each ton of production is Tk. 1200. Other expenses of that mill are Tk. 90,000 in each month what should be the selling price of each ton of steel in order to make 10% profit?
A 1870
B 1845
C 1842
D 18145
100 ton জিংক অক্সাইডকে 100 ton চারকোলসহ বিজারিত করলে কি পরিমাণ জিংক ধাতু উৎপাদন করা যাবে?
A 65.38 ton
B 81.38 ton
C 16 ton
D 130.76 ton
Coke made in narrower by-product coke ovens (as compared to wider ovens) is
A Less reactive
B Stronger
C Smaller in size
D All of the above
Width of the coke oven towards coke side is slightly more than that on pusher side to
A Facilitate easy discharging of coke as it swells during carbonisation
B Facilitate uniform heating of the oven
C Increase the output of the coke
D None of these
Narrow coke ovens as compared to wider coke ovens
A Produce smaller coke
B Produce stronger coke
C Require less time of carbonisation
D All of the above

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