How do electronic timers provide time delays?
What will be an ideal response?
Electronic timers use solid-state components to provide the time delay desired. Some of these timers use an RC time constant to obtain the time base and others use quartz clocks as the time base. RC time constants are inexpensive and have good repeat times. The quartz timers, however, are extremely accurate and can often be set for 0.1 second times. These timers are generally housed in a plastic case and are designed to be plugged into some type of socket. An electronic timer can be designed to be plugged into a standard eight-pin tube socket. The length of the time delay can be set by adjusting the control knob on top of the timer.
You might also like to view...
The set of a piping offset that has a run of 22 inches and an angle of 45 degrees is _____ inches. (Refer to the figure above.)
a. 12.7 b. 22 c. 38 d. 53.1
Identify the statement that is false.
A. The triangular trade was enormously profitable and made up most of the colonial commerce. B. A trader would leave New England with a cargo of rum and sail to the Gold Coast of Africa. C. A trader would barter rum with African chiefs for captured African slaves. D. A trader would travel to the West Indies with the African slaves for molasses. E. A trader would travel to New England with the molasses, where it would be distilled into rum.
How has the role of education changed for farmers in the last 50 years?
What will be an ideal response?
___________ is a comparison of an animal's performance relative to other animals raised with it
a. Herd Statistics Pool c. Estimated Breed Value b. Performance Index d. Evaluation Index