What are the disadvantages of vacuum tubes?
What will be an ideal response?
Vacuum tubes wasted a lot of power (think of the heat generated by just a 100 watt light bulb), shattered easily (since they were encased in glass), frequently had to be replaced, and took up a lot of space.
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Answer the following statement(s) true (T) or false (F)
1. The animals chosen in the show ring are always the same as those chosen by producers. 2. The methods of pig selection have changed little over time. 3. The most important aspect of swine selection is evaluating and selecting breeding animals. 4. For producers to make a profit, animals must reproduce efficiently. 5. A litter of ten pigs can be cared for as easily as a litter of four.
In a typical CVT, one pulley is the drive member and the other is the driven member.
Answer the following statement true (T) or false (F)
Before removing a pump from the system, check the bleeder valves before breaking the connection to ensure that there is _____ pressure
A) zero B) steady C) minimum D) sufficient
Steel is a rare material that can be worked in either a heated or a cooled state.
Answer the following statement true (T) or false (F)