On magnetic contactors, which contacts are said to be normally open (NO)?
a. All contacts that are functioning correctly
b. Those that are together when the relay is de-energized
c. Those that are apart when the relay is de-energized
d. All contacts that are not functioning correctly
b. Those that are together when the relay is de-energized
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Answer the following statement(s) true (T) or false (F)
1. The Bipolar Junction Transistor (BJT) is a three-terminal device similar in composition to the vacuum tube triode. 2. Silicon transistors have almost totally replaced germanium transistors in electronic applications. 3. Both the NPN and PNP transistors have two depletion regions created during the manufacturing process. 4. The concept of forward biased and reversed bias do not apply to the testing of a transistor. 5. The setting/socket method for transistor testing is really a “ballpark” approach because many transistors will read much lower than the manufacturer’s specs but still work fine.
What are two pieces of protective equipment that should be worn when using a steam cleaner or
pressure washer?
What will be an ideal response?What difference is there between handling zeotropes and azeotropes?
A) There is no difference in how zeotropes and azeotropes are handled. B) Azeotropes must leave the cylinder as a liquid but zeotropes may leave the cylinder as either a liquid or a vapor. C) Zeotropes must leave the cylinder as a liquid but azeotropes may leave the cylinder as either a liquid or a vapor. D) Zeotropes can be flammable and azeotropes are nonflammable.
The lower region of the engine is known as?
A. Cylinder block. B. Head. C. Engine block. D. Crankcase.