Number System Conversion: Decimal, Binary, Octal, and Hexadecimal (Multiple Choice Questions)

1. (单选题) The base of the decimal number system is（） A 8

B 2

C 16

D 10

2. (单选题) Which of the following representations is incorrect? A (11010010)2

B (944)8

C (4FB)16

D 3552

3. (单选题) Which of the following is equivalent to 13 in decimal? A (1101)2

B (17)8

C (F)16

D none of the above

4. (单选题) Which of the following is equivalent to 22.625 in decimal? A (11001110)2

B (101101)2

C (10110.101)2

D (100111.111)2

5. (单选题) Which of the following is equivalent to 2754 in decimal? A (AC2)16

B (123)16

C (ABB)16

D (35E.E1)16

6. (单选题) Which of the following is equivalent to 862.87890625 in decimal? A (AC2)16

B (123)16

C (ABB)16

D (35E.E1)16

7. (单选题) Which of the following is equivalent to 1209 in decimal? A (437)8

B (2271)8

C (223.7)8

D (471.21)8

8. (单选题) Which of the following is equivalent to 147.875 in decimal? A (437)8

B (2271)8

C (223.7)8

D (471.21)8

9. (单选题) Convert the decimal number 1314 to binary( ) A (10100100010)2

B (10101)2

C (100111010.00000101)2

D (1110.10001111)2

10. (单选题) Convert the decimal number 314.02 to binary() A (10100100010)2

B (10101)2

C (100111010.00000101)2

D (1110.10001111)2

11. (单选题) Convert the decimal number 1756 to octal() A (3335)8

B (532)8

C (171.134)8

D (60.631)8

12. (单选题) Convert the decimal number 717 to hexadecimal() A (2CD)16

B (79)16

C (B4.214)16

D (13A.1)16

13. (单选题) Convert the decimal number 212.13 to hexadecimal() A (2CD)16

B (79)16

C (D4.214)16

D (13A.1)16

14. (单选题) Convert the decimal number 48.8 to octal() A (3335)8

B (532)8

C (171.134)8

D (60.631)8

15. (单选题) Convert the octal number (411)8 to hexadecimal() A (14C)16

B (D.E)16

C (109)16

D (2AC)16

Answers:

1. D
2. D
3. D
4. C
5. D
6. D
7. D
8. D
9. A
10. C
11. A
12. A
13. B
14. C
15. B