Question
Pipe ‘A’ takes 60 hours to fill a tank. Pipe
‘B’ takes 120 hours to empty it. If both are opened together, find the time required to fill 50% of the tank.Solution
Let the capacity of the tank be 240 litres.So, efficiency of pipe ‘A’ = 240 ÷ A = 4 litres/hour And efficiency of pipe ‘B’ = 240 ÷ B = 2 litres/hour So, combined efficiency of both pipes = 4 – 2 = 2 litres/hour So, time taken to fill 50% of the tank = (240 × 0.50) ÷ 2 = 120 ÷ 2 = 60 hours
Iodized salt contains iodine in the form of:
The process involved in bread staling is:
Which soil particles are the smallest?
Which chemical is used for controlling sprouting of onions in storage?
In which of the following method, heating is due to electrical resistance of a food
The skin of vegetable are removed by
Bacillus is an example of
Salmonellosis involves:
Causes for food spoilage are
Match the following Foodstuff with their adulterant A to D
1. Asafetida ...
Relevant for Exams:
