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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.) 
Below a question is given with one passage and its effects (I) and (II). One of these effects or both or none may be the effect of the statement. Read both the effect and decide which of the following answer choice correctly depicts the relationship between these cause and effect. Passage: In the urban area there exist a lot of industries, commercial places and public places religious places which involve a lot of a  people and working machinery note of sound and when this sound becomes unpleasant it is known as noise. it is one of the reasons why public authorities have divided the city into a number of zones is known as a different noise level. Effects: I        Noise leads to emotional and behavioural stress. A person may feel disturbed in the presence of loud noise such as produced by heating of drums. II       Noise may cause damage to the liver, brain, and heart.  
Below a question is given with one Passage and its Effects (I) and (II). One of these effects or none may be the effect of the statement. Read both the effect and decide which of the following answer choice correctly depicts the relationship between these cause and effect.  Passage: The transportation network in our country is responsible for the of development of the country. in 1927 the committee known as a committee was formed the prime aim of the committee was to give guidelines for the construction of roads their development and maintenance. Jaykar committee suggested that the development of roads in a country should be considered a work of National interest and also suggested to impose an extra tax on petrol and diesel from the road user to developer road. Effects:  I.   Extra charge for petrol at the rate of 1 Rupee per litre and. 5 rupee per litre on diesel is charged in our country II.  Motor vehicle act first made India 1939 and revised in 1977  
A, B and C are three small pumps fitted to a tank. D is a large pump fitted to the tank. Pump B is 25% more efficient than A. Pump C is 20% more efficient than B. Pump D is 4/3rd efficient of pump C. All of the pumps are used to fill the tank. What is the ratio of the time taken by pumps A and B to fill the tank together to the time taken by the pumps B and D to fill the tank together?
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
Equally disappointing is the court's ________________, one-paragraph dismissal of the claim that criminal ________________ creates a chilling effect upon speech. Such proclamations are easy _______________ from the high, secure, and insulated bench of the Supreme Court. It is journalists and newspapers, fighting hundreds of _____________ cases in court, _______________ have to deal with the very real consequences.
criminal ________________ creates a chilling effect upon speech
In the question below are given two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: I. Only a few generator is pump II. Some pump is gasoline Conclusions: I. Some pump is not gasoline II. Some generator is not pump
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?
Super cavitation is the use of cavitation effect to create a bubble of steam inside a liquid.
A centrifugal pump designed to pump water is employed to pump a more viscous oil. In the later case, the pump
If the gear ratio for fuel pump is thrice that of the oxidizer pump, the shaft speed of fuel pump is ____________ the oxidizer pump.