Related Questions

The effective size of sand particles used in slow sand filters is
A 0.25 to 0.35 mm
B 0.35 to 0.60 mm
C 0.60 to 1.00 mm
D 1.00 to 1.80 mm
per day wage rate of workers is reduced 50% due to economic slow down. After one year ,the wage rate is increased by 60% . If the per day wage rate before the decrease was Tk.. 100, then what is the per da y wage rate Now?
A 90
B 100
C 60
D 80
A company reports sales revenue of Tk. 200 million the current year and Tk. 180 million last year. Their total assets in the current year are Tk. 150 million and last year's total assets were Tk. 130 million . What is the current year's asset turnover ratio ?
A 1.48
B 1.33
C 1.36
D 1.43
Ratan and Moinul have started a business investing taka 2.5 million and 3.5 million respectively. After 4 months Ratan gave in 5 lakh taka more while Moinul withdrew 5 lakh taka. If the year ending profit is 12.92 million taka what will be the profit share of Moinul in million taka?
A 6.12
B 6.82
C 6.80
D 8.60
A jar contains a mixture of oil and water in the ratio 22 :3 . 50 litres of the mixture was taken out and 25 litres of water was added to it. If water was 34% in the resultant mixture, what was the initial quantity of the mixture (in litres ) in the jar?
A 175
B 150
C 75
D 125
Period of cleaning of slow sand filters is about
A 24 - 48 hours
B 10 - 12 days
C 2 - 3 months
D 1 - 2 year
During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration
A At time zero
B At the end of filtration
C When half the filtrate has been obtained
D At the end of filtration, but decreases with time subsequently
per day wage rate of workers is reduced 50% due to economic slowdown. After one year, the wage rate is increased by 60% . If the per day wage rate before the decrease was Tk. 100, then what is the per day wage rate now?
A 90
B 100
C 60
D 80
Per day wage rate of workers is reduced 50% due to economic slowdown. After one year, the wage rate is increased by 60%. If the per day wage rate before the decrease was Tk 100, then what is the per day wage rate now?
A 90
B 100
C 60
D 80
Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration.
A Constant rate
B Varying pressure
C Varying rate
D Constant pressure

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