RS 232 MCQ (Multiple Choice Questions) PDF - 58

MCQ 286: In RS-232 communication, all data bits are sent and held for a

1. constant period of time
2. variable period of time
3. exponential period of time
4. doesn't hold

MCQ 287: In CMOS NAND gate, PDN NMOS transistors are in

1. series
2. parallel
3. series or parallel
4. random

MCQ 288: Motorola MECL10000 at 25°C has input low voltage of

1. −1.475 V
2. −1.105 V
3. −1.630 V
4. −0.980 V

MCQ 289: When collector emitter voltage reaches sufficiently high, reverse biased base-collector goes to

1. increase
2. decrease
3. breakdown
4. forward biased

MCQ 290: A method where the youngest entry or 'top of the stack is processed first is termed as

1. first-in first-out logic
2. last-in last-out logic
3. first-in last-out logic
4. last-in first-out logic