Related Questions

একটি পানিপূর্ণ কুয়ার গভীরতা 20m ও ব্যাস 2 m. কুয়াটিকে পানি শূণ্য করার জন্য 5 HP এর একটি পাম্প লাগানো হল। অর্ধেক পানি তোলার পর পাম্পটি নষ্ট হয়ে গেল। বাকি পানি তোলার জন্য একই ক্ষমতা সম্পন্ন আর একটি পাম্প লাগানো হল। প্রথম পাম্প দ্বারা সম্পাদিত কাজের পরিমান নির্ণয় কর।(The depth and diameter of a water filled well are 20 m and 2 m respectively. An engine of 5 HP is attached to pump out the water. The pump was ruined after emptying half of the water. Then another pump of same capacity was attached to pump out rest of the water. Determine the work done by first pump.) 
A 2.54 × 104 J
B 1.44 × 104 J
C 2.34×104 J
D 1.54 × 104 J
E 1.54 ×104 J
Working alone, pump A can empty a pool in 3 hours. Working alone, pump B can empty the same pool in 2 hours. Working together, how many minutes will it take pump A and pump B to empty the pool?
A 72
B 75
C 84
D 96
A centrifugal pump designed to pump water is employed to pump a more viscous oil. In the later case, the pump
A Develops a lower head
B Capacity is reduced
C Requires more power
D All of the above
You are the network administrator for your company. Mike Nash is a member of the Administration group, and Nate Sun is a member of the Intern group. Both groups are in the same domain. On the intranet server, the Administration group is placed in the Security group, and the Intern group is placed in the Nonsecurity group. The Security group is then granted Full Control permission for the Sales virtual directory. Nate needs to update new sales information that is located on the Sales virtual directory. What should you do so that Nate can perform this task?
A Enable Anonymous access for the intranet server
B Enable Anonymous access for the Sales virtual directory
C Remove Nate fmm the Intern group
D Make Nate a member of the Security group
E None of above
A boat has a crack in its bull which is leaking water into the boat and could pump which can pump the water out in 8 hours . If the boat is 168 km away from the shore and the pump is running what is the minimum speed the boat should run at so that it can reach the shore before sinking?
A 5km./hour
B 6 km/hour
C 7 km/hour
D 8km/hour
A group consists of six members A, B, C, D, E and F. There are two housewife, one professor, one engineer, one accountant and one lawyer in the group. There are two married couples among the members of the group. D is a housewife and she is married to a lawyer. No woman in the group is either an engineer or an accountant. C is an accountant and married to F who is a professor. A is married to a housewife. How many males are there in the group?
A 2
B 3
C 4
D 5
A,B,C,D,E and F are a group of friends.There are two housewifes, one professor,one engines ,one accountant and one lawyer in the group.There are only two married couples in the group .The lawyer is married to D, who is a housewife.No woman in the group is either an engineer or an accountant.C, the accountant, is married to F, who is a professor.A is married to a housewife. How many members of the group are males?
A 4
B 3
C 1
D Cannot be determined
A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double
A Head
B Discharge
C Efficiency
D None of these
The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump.
A Electromagnetic
B Reciprocating
C Centrifugal
D Volute
The type of pump used for lifting large quantity of sewage is a __________ pump.
A Gear
B Centrifugal
C Reciprocating
D Plunger

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