1
GATE CE 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Some of the nontoxic metals normally found in natural water are
A
arsenic, lead and mercury
B
calcium, sodium and silver
C
cadmium, chromium and copper
D
iron, manganese and magnesium
2
GATE CE 2007
MCQ (Single Correct Answer)
+1
-0.3
The presence of hardness in excess of permissible limit causes
A
Cardio Vascular problems
B
Skin discolouration
C
Calcium deficiency
D
Increased laundry expenses
3
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.
4
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
GATE CE Subjects
Fluid Mechanics and Hydraulic Machines
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12