1
GATE CE 2007
MCQ (Single Correct Answer)
+1
-0.3
The alkalinity and the hardness of a water sample are 250 mg/L and 350 mg/L as $$CaCo_3$$, respectively. The water has
A
350 mg/L carbonate hardness and zero non-carbonate hardness.
B
250 mg/L carbonate hardness and zero non-carbonate hardness.
C
250 mg/L carbonate hardness and 350 mg/L non-carbonate hardness.
D
250 mg/L carbonate hardness and 100 mg/L non-carbonate hardness.
2
GATE CE 2005
MCQ (Single Correct Answer)
+1
-0.3
1 TCU is equivalent to color produced by
A
1 mg/L of chloroplatinate ion
B
1 mg/L of platinum ion
C
1 mg/L of Platinum in the form of chloroplatinate ion
D
1 mg/L of organo-chloroplatinate ion
3
GATE CE 2004
MCQ (Single Correct Answer)
+1
-0.3
Most of the turbidity meters work on the scattering principle. The turbidity value obtained is expressed in
A
CFU
B
FTU
C
JTU
D
NTU
4
GATE CE 2002
MCQ (Single Correct Answer)
+1
-0.3
In natural water, hardness is mainly caused by
A
$$Ca^{++}$$ and $$Mn^{++}$$
B
$$Ca^{++}$$ and $$Fe^{++}$$
C
$$Na^{+}$$ and $$K^{+}$$
D
$$Ca^{++}$$ and $$Mg^{++}$$
GATE CE Subjects
Fluid Mechanics and Hydraulic Machines
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