Chapter 3 IMT 445
What is the sum of binary numbers 1100 and 1011? A. 10110 B. 11100 C. 10111 D. 00111
10111
The hexadecimal system is a base ____ system.
16
What is the decimal value of BCD 0011 0111 0110 ? A. 376 B. 673 C. 896 D. 786
376
The binary-coded decimal (BCD) system uses ____ binary bits to represent each numeral in the decimal system.
4
What is the decimal equivalent of the hexadecimal number 1B7? A. 164 B. 127 C. 439 D. 208
439
What is the decimal value of binary 110010? A. 50 B. 26 C. 13 D. 7
50
To express a number in decimal requires fewer digits than in the binary system. True False
true
The ____ code is used to interface the PLC with alphanumeric keyboards.
ASCII (American Standard Code for Information Interchange)
The Gray code is considered to be an error-minimizing code because only one ____ changes at a time.
bit
The binary number system has a base of 8. True False
false
The decimal number 7 would be written in binary as 1011. True False
false
Data can be stored in one 16-bit word as two separate groups of 8-bit data. True False
true
In the sign bit position, a 0 indicates that the number is positive. True False
true