12. When books are arranged in correct order on the shelves by call number, which of the following call numbers will be first?
A. DA 546 .L74 1986
B. D 839 .G3 1987
C. D 839 .G42 2004
D. DE 82 .A49 2006
i answered A
To determine which call number will be first when the books are arranged in correct order on the shelves, we need to understand the basic principles of call number ordering.
Call numbers are typically organized in a hierarchical order, starting with general categories and becoming more specific as you move to the right. In this case, the call numbers contain letters and numbers.
The first element to consider is the letter(s) at the beginning of the call number. In the given options, we have "DA," "D," "DE." The letters are arranged alphabetically, so:
- "D" comes before "DA" and "DE."
Next, we look at the numbers within the call number. For simplicity, let's consider the first number after the letter(s). We have "546," "839," and "82."
- "82" is the smallest number among the options.
- "546" is larger than "82."
- "839" is larger than both "82" and "546."
Lastly, we compare the alphabetic characters after the numbers. In this case, we have ".L74," ".G3," ".G42," and ".A49." The letters are ordered alphabetically:
- ".A49" comes before ".G3."
- ".G3" comes before ".G42."
- ".G42" is the largest among the options.
Now, let's put it all together:
Based on our analysis, the correct order from smallest to largest is:
D 839 .G3 1987
DA 546 .L74 1986
D 839 .G42 2004
DE 82 .A49 2006
Therefore, the book with the call number "D 839 .G3 1987" will be the first one on the shelves.