If specific gravity marked on a hydrometer stem is 1.010, then the corresponding hydrometer reading is
- A10Correct
- B1
- C1.010
- DNone of these
Solution
Concept
Hydrometer reading
Formula
Reading = (G − 1) × 1000
Step-by-step solution
1. Reading Rh = (specific gravity − 1) × 1000 = 0.010 × 1000 = 10.
Explanation
The hydrometer scale is graduated as the last two digits.
Why the other options are wrong
1 and 1.010 are not the stem readings.
Shortcut
1.010 → 10.
Correct answer: A) 10