Technician A says that a relay is an electromagnetic switch. Technician B says that a solenoid uses a movable core. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
C
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The lifetime of a lightbulb in a certain application is normally distributed with mean ยต = 1400 hours and standard deviation ? = 200 hours.
a. What is the probability that a lightbulb will last more than 1800 hours? b. Find the 10th percentile of the lifetimes. c. A particular lightbulb lasts 1645 hours. What percentile is its lifetime on? d. What is the probability that the lifetime of a lightbulb is between 1350 and 1550 hours? e. Eight lightbulbs are chosen at random. What is the probability that exactly two of them have lifetimes between 1350 and 1550 hours?
The exterior elevation should show everything that can be seen on the finished outside wall.
Answer the following statement true (T) or false (F)
To determine if a product or substance being used is hazardous, consult ________
A) SAE standards B) A dictionary C) An MSDS D) EPA guidelines
AC compressor drive belt tension can be measured by ________.
A) Marks on the tensioner B) Using a belt tension gauge C) Deflection D) Any of the above