Related Questions

A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
Semi-silica bricks compared to silica bricks have
A Less fusion point
B Better spalling resistance
C Both A & B
D Neither A nor B
Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.
A Kelvin
B Centigrade
C Fahrenheit
D Reaumer
In slow sland filters, the turbidity of raw water can be removed only up to
A 60 mg/litre
B 75 mg/litre
C 100 gm/litre
D 150 mg/litre
Turbidity of raw water is a measure of
A Suspended solids
B Acidity of water
C B.O.D
D None of these
Turbidity of water is an indication of the presence of
A Suspended inorganic matter
B Dissolved solids
C Floating solids
D Dissolved gases
Maximum permissible turbidity in potable water is __________ ppm.
A 1
B 10
C 250
D 1000
Turbidity is measured on
A Standard silica scale
B Standard cobalt scale
C Standard platinum scale
D Platinum cobalt scale
A linon was drinking water from a brook. ____ a lamb was also taking water from the downstream of the same brook.
A While
B At the same time
C Hence
D On the contarary
Surface water is a better source of drinking water because it is poor in
A Dust
B Bacteria
C Arsenic
D Algae

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