Question 3 of 30
The liquid in the wet card compass is a mixture of
A
A) Distilled water and pure ethyl alcohol
B
B) Distilled water and isopropyl alcohol
C
C) Distilled water and methyl alcohol
D
D) None of the above
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Answer & Explanation
The correct answer is Option A: A) Distilled water and pure ethyl alcohol.
The liquid used in a wet card compass is a specific mixture, usually distilled water and pure ethyl alcohol (or sometimes glycerin), to prevent freezing and dampen oscillations.