A vertical drive can cause problems because ____ tends to pull the belts away from the lower sheave.
A. rotation
B. gravity
C. speed
D. wind
Answer: B
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What is the first step in the programming process?
What will be an ideal response?
Three components are randomly sampled, one at a time, from a large lot. As each component is selected, it is tested. If it passes the test, a success (S) occurs; if it fails the test, a failure (F) occurs. Assume that 80% of the components in the lot will succeed in passing the test. Let X represent the number of successes among the three sampled components.
a. What are the possible values for X?
b. Find P(X=3).
c. The event that the first component fails and the next two succeed is denoted by FSS. Find P(FSS).
d. Find P(SFS) and P(SSF).
e. Use the results of parts (c) and (d) to find P(X=2).
f. Find P(X=1).
g. Find P(X=0).
h. Find 
.
i. Find 
.
j. Let Y represent the number of successes if four components are sampled. Find P(Y=3).
The key to a good maintenance program begins with ____.
A. proper tool selection B. equipment and installation C. maintenance personnel training D. good record keeping
Technician A states rail pressure limiter valves limit maximum rail pressure and are calibrated to trip at pressures slightly above the peak rail pressure. Technician B states high pressure fuel lines are protected by the rail pressure limiter valve and are designed only to withstand pressures at or below the trip pressure. Who is correct?
A. Technician A only. B. Technician B only. C. Both A and B. D. Neither A nor B