CET Digital Logic & Microprocessors 3

Question 1

A euthanasia system microcontroller must read a temperature sensor every 500 milliseconds.
Which microprocessor feature is best suited to trigger this periodic reading without continuously consuming CPU cycles?

Accepted Answer

Hardware timer/interrupt

Answer

Direct Memory Access (DMA)

Answer

Stack pointer

Answer

Accumulator register

Question 2

In Boolean algebra used for designing euthanasia equipment safety logic, which law states that A + (B × C) = (A + B) × (A + C)?

Accepted Answer

Distributive Law

Answer

De Morgan's Law

Answer

Commutative Law

Answer

Associative Law

Question 3

A CO2 euthanasia controller uses a 4-bit DAC (Digital-to-Analog Converter) to control gas flow rate. How many distinct flow rate levels can this DAC produce?

Accepted Answer

16

Answer

4

Answer

8

Answer

32

Question 4

Which microprocessor bus carries data between the CPU, memory, and peripherals in a euthanasia equipment controller?

Accepted Answer

Data bus

Answer

Address bus

Answer

Control bus

Answer

Power bus

Question 5

De Morgan's first theorem states that NOT(A AND B) equals what expression?

Accepted Answer

NOT(A) OR NOT(B)

Answer

NOT(A) AND NOT(B)

Answer

A OR B

Answer

NOT(A AND NOT(B))

Question 6

A euthanasia system uses a flip-flop to remember whether a safety alarm has been triggered. Which flip-flop type has only SET and RESET inputs and is most commonly used for simple alarm latching?

Accepted Answer

SR (Set-Reset) flip-flop

Answer

D flip-flop

Answer

JK flip-flop

Answer

T flip-flop

Question 7

In an embedded microcontroller used for euthanasia equipment, GPIO stands for what?

Accepted Answer

General Purpose Input/Output

Answer

Guided Program Interrupt Operation

Answer

Global Processor I/O

Answer

Graphical Processing Interface Output