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A flask has two holes. The 1st hole alone makes the flask empty in 9 minutes and 2nd hole alone makes the flask empty in 16 minutes. If water leaks out at a constant rate, how long in minutes does it take if both the holes together empty the flask?
The carpogonium of lichen is a special cellular filament consisting of two portions, the lower coiled portion and the upper straight portion. The coiled portion constitutes the
According to National Curriculum Framework (NCF), 2005 which of the following statement(s) is/are correct regarding teaching History at the upper primary stage? I. At the upper primary stage, History must focus on developments in India. II. At the upper primary stage, History will take into account developments in different parts of India, with sections on events or developments in other parts of the world. III. At the upper primary stage, History will only take into account development in different parts of India.
A 250 mm by 250 mm ingot casting, 1.5 m high and at 1225 K temperature, is stripped from its mold. The casting is made to stand on end on the floor of a large foundry whose wall, floor and roof can be assumed to be at 300 K temperature. Make calculation for the rate of radiant heat interchange between the casting and the room. The casting material has an emissivity of 0.85
The casting processes that require expendable moulds are
P. Investment casting
Q. Low pressure casting
R. Shell moulding
S. Slush casting
When a flask containing sodium thiosulfate is placed over a paper marked with ‘X’ and HCl added to it, the ‘X’ seems to disappear when looked through the flask. Why?
What does “T” refers to in Tissue culture flask (T-Flask)?
8 litres are drawn from a flask containing milk and then filledwith water. The operation is performed 3 more times. Theratio of the quantity of milk left and total solution is 81/625.How much milk the flask initially holds?
Statement 1: With respect to meat, the red portion contains a salt binder to cause tackiness at temperatures above 48 deg C. Statement 2: The white portion + red portion form an integral mass having interface between layers.
If the first half of the English alphabet is reversed and then next portion of English alphabet is reversed so as 'A' takes the portion of 'M' and 'N' takes the portion of 'z' then which letter will be 6th to the left of 17th letter to the right of 7th leter from the left?