Related Questions

Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator?
A Long vertical evaporator
B Horizontal tube evaporator
C Agitated film evaporator
D Calenderia vertical tube evaporator
In forced convection, the heat transfer depends on
A Re, Pr
B Re, Gr
C Mainly Gr
D Re only
Nusselt number (for forced convection heat transfer) is a function of the __________ number.
A Prandtl
B Reynolds
C Both A & B
D Neither A nor B
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
A scaling factor
B forming factor
C resisting factor
D fouling factor
Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the
A Surrounding temperature
B Average temperature of the fin
C Temperature of the fin end
D Constant temperature equal to that of the base
In convection heat transfer from hot flue gases to water tube, even though flow may be turbulent, a laminar flow region (boundary layer of film) exists close to the tube. The heat transfer through this film takes place by
A Convection
B Radiation
C Conduction
D Both convection and conduction
রেওয়ামিলে দেনাদার ৫২,০০০ টাকা, লিখিত অনাদারি পাওনা ২,০০০ টাকা এবং অলিখিত অন্যদায়ি পাওনা ২,০০০ টাকা। যদি দেনাদারের ওপর ৫% সঞ্চিতি রাখা হয় এবং অনাদায়ি পাওনা সঞ্চিতির ক্রেডিট ব্যালেন্স ১,০০০ টাকা হয়, তাহলে চলতি বছরে অন্যনায়ি পাওনা সঞ্চিতি কত রাখতে হবে? (In trial balance, account receivable is of Tk. 52,000 recorded bad debt of Tk.2,000 and unrecorded bad debt of Tk. 2,000. What is the amount of allowance for doubtful accounts kept in current year if the allowance is 5% on accounts receivable and credit balance in allowance for doubtful accounts currently is of Tk. 1,000 )
A ২,৫০০ টাকা (Tk. 2,500)
B ১,০০০ টাকা (Tk. 1,000)
C ২,৪০০ টাকা (Tk. 2,400)
D 1,500 টাকা (Tk. 1,500)
Computer accounts and user accounts in your domain have been seperated into OUs for administrative purpose. You want to require strong passwords for the local user accounts only. What should you do?
A Set a Group Policy on each local computer to enable the passwords must meet complexity requirements policy
B Set a Group Policy on the domain to enable the passwords must meet complexity requirements policy
C Set a Group Policy on all OUs containing computer accounts to enable the passwords must meet complexity requirements policy
D Set a Group Policy on all OUs containing user accounts to enable the passwords must meet complexity requirements policy
E None of above
 For a research purpose 2500 individuals were interviewed. Among them 750 persons have bank accounts in State Owned Commercial Banks (SOCBS) and 2250 persons have bank accounts in Private Commercial Banks (PCBs). How many of them have bank accounts in both SOCBS and PCBs?
A 250
B 300
C 500
D 600
Accounts receivable at the end of the month is Tk 80,000. Bad debts are expected to be 5% of accounts receivable. If Allowance for Doubtful Accounts has a credit balance of Tk 1,000 before adjustment, what is the balance after adjustment?
A Tk 2,000
B Tk 3,000
C Tk 4,000
D Tk 5,000
E None of these

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