Question: There are two types of transistors, which have slight differences in how they are used in a circuit. A bipolar transistor has terminals labeled base, collector, and emitter. A small current at the base terminal (that is, flowing between the base and the emitter) can control or switch a much larger current between the collector and emitter terminals. For a field-effect transistor, the terminals are labeled gate, source, and drain, and a voltage at the gate can control a current between source and drain.
Is there an answer to this question: Where is the gate terminal located?

Answer: unanswerable


Question: The five Great Lakes are located in the north-central portion of the country, four of them forming part of the border with Canada, only Lake Michigan situated entirely within United States. The southeast United States contain subtropical forests and, near the gulf coast, mangrove wetlands, especially in Florida. West of the Appalachians lies the Mississippi River basin and two large eastern tributaries, the Ohio River and the Tennessee River. The Ohio and Tennessee Valleys and the Midwest consist largely of rolling hills and productive farmland, stretching south to the Gulf Coast.
Is there an answer to this question: Which section of the US contains tropical forests and mangrove wetlands?

Answer: unanswerable


Question: Proponents of affirmative action argue that by nature the system is not only race based, but also class and gender based. To eliminate two of its key components would undermine the purpose of the entire system. The African American Policy Forum believes that the class based argument is based on the idea that non-poor minorities do not experience racial and gender based discrimination. The AAPF believes that "Race-conscious affirmative action remains necessary to address race-based obstacles that block the path to success of countless people of color of all classes". The groups goes on to say that affirmative action is responsible for creating the African American middle class, so it does not make sense to say that the system only benefits the middle and upper classes.
Is there an answer to this question: What does the AAPF believe the foundation for the class based argument is?

Answer: non-poor minorities do not experience racial and gender based discrimination


Question: Although testing can determine the correctness of software under the assumption of some specific hypotheses (see hierarchy of testing difficulty below), testing cannot identify all the defects within software. Instead, it furnishes a criticism or comparison that compares the state and behavior of the product against oracles—principles or mechanisms by which someone might recognize a problem. These oracles may include (but are not limited to) specifications, contracts, comparable products, past versions of the same product, inferences about intended or expected purpose, user or customer expectations, relevant standards, applicable laws, or other criteria.
Is there an answer to this question: What can testing not completely find?

Answer:
all the defects