Related Questions

In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ PPm.
A 0.5
B 1
C 5
D 20
A man takes twice as long to row a distance against the stream as to row the same distance in favor of the stream . The ratio of the speed of the boat (in still water ) and the stream is :
A 2 : 1
B 3 : 2
C 4 : 3
D 3: 1
A boat runs at 22 km per hour along the stream and 10 km per hour against the stream .Find the ratio of the speed of the boat in still water to that of the speed of the stream .
A 2 :3
B 5 : 3
C 7 : 3
D 8 : 3
For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
A 10000
B 5
C 500
D 1000
A boat sailing against a stream of river takes 6 hours to travel 24 kms, while sailing with the stream it takes 4 hours to travel the same distance. What is the speed of the stream?
A 1/2 km/hr
B 1 km/hr
C 2km/hr
D 1.5 km/hr
A boat goes 8 km in one hour along the stream and 2 km in one hour against the stream. The speed in km/hr of the stream is ----
A 2
B 4
C 3
D 5
A boat sailing against a stream of of river takes 6 hours to travel 24 kms, while sailing with the stream it takes 4 hours to travels the same distance. What is the speed of the stream ?
A 2.5 km / hr
B 1.5 km / hr
C 1 km / hr
D 0.5 km / hr
A boat goes 8 km in one hour along the stream and 2 km in one hour agaist the stream. The speed i km/hr of the stream is
A 2
B 4
C 3
D 5
Select the word that is the most closely opposite in meaning to the capitalized word : DELETERIOUS
A toxic
B spurous
C harmless
D lethal
DELETERIOUS
A impulsive
B salubrious
C pathetic
D inclusive

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