Question 1 which of the following is not an alternative

Question

Question 1. Which of the following is not an alternative power system?

• Solar panel
• Hydroelectric
• Windmill
• Nuclear reactor

Question 2. According to IPC-D-275, what is the minimum spacing (in inches) recommended when the voltage between conductors (dc or ac peak) is between 101-170?

• 0.025
• 0.060
• .0125
• 0.250

Question 3. If the peak ac voltage is 200 volts, the root-mean-square voltage is _____.

• 400 volts
• 50 volts
• 200 volts
• 100 volts

Question 4. In rectification by full wave _____.

• the frequency is doubled
• the amplitude is doubled
• the period is doubled
• the amplitude is halved

Question 5. An inverter typically uses the following components.

• Two switches
• A transformer and a switch
• A rectifier and a switch
• A diode and a switch

Question 6. If motor drive is a cycloconverter, then the motor is connected to how many phases at a time?

• Four
• One
• Two
• Three

Question 7. What is the critical path?

Question 8. If the software does not allow you to create smooth arcs in your traces, what should you substitute for a right angle?

Question 9. The common return may snake literally over the board. What is the benefit?

Question 10. Discuss the steps to identify the critical path on a circuit board.