Which internal circuit is used to determine when a 555 timer changes states?
A) a voltage comparator B) a flip-flop
C) a buffer D) an RC network
A
You might also like to view...
Describe the most important part of the farmer’s conservation effort. Explain why it is so important
What will be an ideal response?
The National Recovery Administration (NRA) failed largely because
A. businesses and labor aggressively and universally resisted any regulation of wages, prices, and hours by the agency. B. it required too much self-sacrifice on the part of industry, labor, and the public. C. Harold Ickes, the head of the agency, proved to be an incompetent administrator. D. it did not provide enough protection for labor to bargain with management. E. the agency did not have enough power to control business.
Technician A says that all components in the high voltage battery box are completely insulated from the rest of the vehicle for safety. Technician B says that the high voltage battery box is located under the hood in some vehicles. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
What procedure is used when heating a brazed copper joint?
A) Heat the pipe first and then the fitting. B) Concentrate the flame on the line where the pipe slips into the fitting. C) Use a fanning motion to heat the fitting evenly and slowly. D) Heat the fitting first and then heat the pipe after the fitting is hot.