# Number System – 2 MCQ’s

This set of Digital Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Number System – 2″.

1. The octal number (651.124)8 is equivalent to ______
a) (1A9.2A)16
b) (1B0.10)16
c) (1A8.A3)16
d) (1B0.B0)16

2. The octal equivalent of the decimal number (417)10 is _____
a) (641)8
b) (619)8
c) (640)8
d) (598)8

3. The given hexadecimal number (1E.53)16 is equivalent to ____________
a) (35.684)8
b) (36.246)8
c) (34.340)8
d) (35.599)8

4. Convert the hexadecimal number (1E2)16 to decimal.
a) 480
b) 483
c) 482
d) 484

5. Convert (214)8 into decimal.
a) (140)10
b) (141)10
c) (142)10
d) (130)10

6. Convert the binary number (01011.1011)2 into decimal.
a) (11.6875)10
b) (11.5874)10
c) (10.9876)10
d) (10.7893)10

7. (170)10 is equivalent to ____________
a) (FD)16
b) (DF)16
c) (AA)16
d) (AF)16

8. Convert (0.345)10 into an octal number.
a) (0.16050)8
b) (0.26050)8
c) (0.19450)8
d) (0.24040)8

9. Octal to binary conversion: (24)8 =?
a) (111101)2
b) (010100)2
c) (111100)2
d) (101010)2

10. Convert binary to octal: (110110001010)2 =?
a) (5512)8
b) (6612)8
c) (4532)8
d) (6745)8