While having a discussion, Technician A says that the longer a conductor is, the more resistance it has and the smaller its diameter, the less resistance it has. Technician B says that the larger its diameter, the less resistance it has. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: B
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Severe service includes ________.
A) Driving in temperatures below freezing B) A combination of city and highway driving C) Extensive highway driving D) Commercial use, such as police or taxi use
Refer to Exercise 25. Assume that if m = 0, the value s = – 1.5 is sent, and if m = 1, the value s = 1.5 is sent. The value received is X, where X = s + E, and E ~ N(0, 0.64). If X ? 0.5, then the receiver concludes that m =0, and if X > 0.5, then the receiver concludes that m = 1.
a. If the true message is m = 0, what is the probability of an error, that is, what is the probability that the receiver concludes that m = 1? b. If the true message is m = 1, what is the probability of an error, that is, what is the probability that the receiver concludes that m = 0? c. A string consisting of 601s and 400s will be sent. A bit is chosen at random from this string. What is the probability that it will be received correctly? d. Refer to part (c). A bit is chosen at random from the received string. Given that this bit is 1, what is the probability that the bit sent was 0? e. Refer to part (c). A bit is chosen at random from the received string. Given that this bit is 0, what is the probability that the bit sent was 1?
The three components of a data transmission system are a sending device, receiving device, and trasnmission medium
Indicate whether the statement is true or false
Before changing accessories or performing maintenance on a power tool, make sure _____
a. it is turned off b. your hands are dry c. to have a clean work surface d. the power is disconnected