Paper , Order, or Assignment Requirements
| Question 1. The advantage of solid state relay over electromechanical relay is |
no wear/tear.
faster.
both A and B.
cheaper. |
| Question 2. On a CAN bus, one node transmits a bit with CANH of 2.5V and a CANL of 2.5 V. Which one of the following statements is true? |
The bit is a dominant state.
The bit can be overridden by a bit in a dominant state.
The bit can be overridden by a bit in a recessive state.
The bit is in an illegal state. |
| Question 3. The type of cohesion in which the components of a software module operate on the same data is called _____. |
logical cohesion
sequential cohesion
communicational cohesion
functional cohesion |
| Question 4. A computer that executes multiple threads, one at a time, uses _____. |
foreground programming
concurrent programming
background programming
parallel programming |
Question 5. An op amp requires the design equation
Vout = 50Vin – Vref + AgVg. What is the value of Ag? |
-48
48
-3
3 |
| Question 6. The execution of an interrupt request routine is called a _____. |
background thread
foreground thread
process
interrupt request |
| Question 7. In connecting the stepper motor to the microcontroller, generally, we must have |
electromechanical relay.
current driver.
optoisolator.
Any of the above |
| Question 8. In a CAN bus, there are three computers: Computer A, Computer B, and Computer C. The messages being sent are 1 millisecond long. Computer A starts sending a message on the bus. After 500 microseconds later, Computer B starts to send a message. After 500 microseconds later, Computer C starts to send a message. When does Computer A retransmit its message? |
After 2 milliseconds
After 1 millisecond
After 1.5 milliseconds
Never. Computer A will not retransmit. |
| Question 9. The type of cohesion in which all components of a software module combine to implement a single objective, and each component is necessary, is called _____. |
logical cohesion
sequential cohesion
temporal cohesion
functional cohesion |
| Question 10. A _____ records values of output ports controlled by the program. |
monitor
filter
logic analyzer
profile |
| Question 11. The use of multiple cores to execute threads simultaneously is called _____. |
foreground programming
concurrent programming
background programming
parallel programming |
| Question 12. The voltage dropout of a voltage regulator is 1.6 volts. If a 10-volt output is required, what is the minimum regulator input voltage? |
11.6V
8.4 V
12.6V
9.4V |
| Question 13. The default vector address for the XIRQ signal is _____. |
FFE4
FFE0
FFF4
FFF0 |
| Question 14. A communications channel has a bandwidth of 1,000 Hz and an SNR (Signal-to-Noise Ratio) of 20 dB. What is the maximum possible data rate? |
6.7 kbits/sec
4.4 kbits/sec
20 kbits/sec
50 kbits/sec |
| Question 15. An H-bridge allows a 4-amp current pulse to the drive motor. What is the average current if the duty cycle is 75% and the pulse frequency is 2 kHz? |
2A
3A
2.5A
2.75A |
| Question 16. A communications channel has a bandwidth of 4,500 Hz and an SNR (Signal-to-Noise Ratio) of 40 dB. What is the maximum possible data rate? |
59.6 kbits/sec
21 kbits/sec
160 kbits/sec
100 bits/sec |
| Question 17. An H-bridge allows a 2-amp current pulse to the drive motor. What is the average current if the duty cycle is 25%, and the pulse frequency is 2 kHz? |
2A
1.75A
1.5A
0.5A |
| Question 18. Calculate the minimum PWM frequency for a small permanent magnet DC motor with a time constant of 15 milliseconds. Show your reasoning.
|
| Question 19. How would you implement a wireless capability for a robot or Smart Car, i.e. should you build or buy?
|
| Question 20. What are the differences between a Moore Finite State Machine (FSM) and a Mealy FSM?
|
| Question 21. How does a call graph differ from a data flow graph?
|
| Question 22. What simple electrical device is used to conduct high frequency noise to ground?
|
| Question 23. Why is an interrupt routine slower than procedural code?
|
| Question 24. Compare the advantages and disadvantages of using an optoisolator versus a relay as an interface to an alarm clock circuit. |
