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27 Oct 2024, 13:21
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X: Powering on the machine
Y: Placing the C and R levers in the same position
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
58% (01:54) correct
42%
(02:12)
wrong
based on 1084
sessions
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Not Attempted Yet
A certain piece of electrical machinery has exactly three control levers-left (L), center (C), and right (R)-each with positions of up or down. The machine is able to operate if and only if the operator has placed them in one of the following four configurations.
Consider the statement,
Select the options for X and for Y such that the statement, if true, most clearly provides a possible explanation of the above facts. Make only two selections, one in each column.
. L up, C up, R up
. L up, C down, R down
. L down, C up, R up
· L down, C down, R down
. L up, C down, R down
. L down, C up, R up
· L down, C down, R down
Consider the statement,
The one and only means of X is Y.
Select the options for X and for Y such that the statement, if true, most clearly provides a possible explanation of the above facts. Make only two selections, one in each column.
| X | Y | |
| Powering on the machine | ||
| Powering off the machine | ||
| Placing the L and C levers in the same position | ||
| Placing the L and R levers in different positions | ||
| Placing the C and R levers in the same position | ||
| Placing both the C and the R levers in the down position |
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Official Answer
X: Powering on the machine
Y: Placing the C and R levers in the same position
28 Oct 2024, 22:13
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Can you explain the process once please?
30 Oct 2024, 04:16
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Just look at the combinations of the levers and you will see that C and R are always in the same position, so one of the statements must be "Placing the C and R levers in the same position". If you realize that, look at the statement that you have to consider: "The one and only means of X is Y". A means of something is either the reason why something is done or the way that something can be done. Here, the way something is done makes sense as the statement seems to present an instruction on how to operate the machine. So what could be the means? Looking at the other answer choices only "Powering on the machine" and "Powering off the machine" make sense. However, it doesn't make sense to use the levers C and R to power the machine off, so powering on must be the correct choice.
X: The only means of turning the machine ON
Y: is using C and R levers
X: The only means of turning the machine ON
Y: is using C and R levers
