The UNIX/Linux ____ command displays the system date, which the system administrator maintains.
A. today
B. sysdate
C. system
D. date
Answer: D
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The safety valve reduces pressure at ____ psi.
a. 150 b. 50 c. 100
Today, both coal fired and nuclear power plants utilize the Rankine cycle to power electrical generators
Indicate whether the statement is true or false.A window frame manufacturer is searching for ways to improve revenue from its triple-insulated sliding windows, sold primarily in the far northern areas of the United States. Alternative A is an increase in TV and radio marketing. A total of $300,000 spent now is expected to increase revenue by $60,000 per year. Alternative B requires the same investment for enhancements to the in-plant manufacturing process that will improve the temperature retention properties of the seals around each glass pane. New revenues start slowly for this alternative at an estimated $10,000 the first year, with growth of $15,000 per year as the improved product gains reputation among builders. The MARR is 8% per year and the maximum projection period is 10 years for either alternative. Use (a) payback
analysis, and (b) present worth analysis (for 10 years) to select the more economical alternative. State the reason(s) for any difference in the alternative chosen between the two analyses. (c) Find the payback and present worth values using a spreadsheet. What will be an ideal response?
Match each item with a statement below.
A. in Emacs, cancels the current command B. used in Emacs to scroll up one screen C. used in vi to delete the current line D. used in vi to copy lines E. acts as a wildcard for one character in vi F. used in vi to search forward for a pattern of characters G. used in vi to move to the end of the current line H. used in vi to delete the text at the cursor I. used in vi to move up one line