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- Question
Express -7 as 16-bit signed binary numbers.
Options- A. 0000 0000 0000 0111
- B. 1000 0000 0000 0111
- C. . 0111 0000 0000 0001
- D. 0111 0000 0000 0000
- E. None of the above
- Correct Answer
- 1000 0000 0000 0111
- 1. The command used to remove the directory is;
Options- A. rmdir
- B. rd
- C. remove
- D. rdir
- E. None of the above Discuss
- 2. What is the smallest number of polarities required for current flow?
Options- A. One - a negative terminal
- B. Two - a negative terminal and a positive terminal
- C. Three - negative, positive and neutral terminals
- D. Four - two negative and two positive
- E. None of the above Discuss
- 3. The value of a capacitor can be made larger by:
Options- A. increasing the area of the plates
- B. decreasing the area of the plates
- C. increasing the frequency of the applied voltage
- D. increasing the voltage applied to the plates
- E. None of the above Discuss
- 4. What is the modem hang up command?
Options- A. ATHU
- B. ATH
- C. ATZ
- D. ATX
- E. None of the above Discuss
- 5. Which command is used to delete the directory that is empty?
Options- A. DEL *.*
- B. RD
- C. ERASE
- D. MD
- E. None of the above Discuss
- 6. Which standard govern parallel communications?
Options- A. RS232
- B. RS-232a
- C. CAT 5
- D. IEEE 1284
- E. None of the above Discuss
- 7. The operating system of a computer serves as a software interface between the user and
Options- A. hardware
- B. peripheral
- C. memory
- D. screen
- E. None of the above Discuss
- 8. Use of modern control technology in automation systems:
Options- A. reduces costs
- B. improves reliability
- C. increases yield
- D. All of the above
- E. None of the above Discuss
- 9. One definition of AI focuses on problem-solving methods that process:
Options- A. smell
- B. symbols
- C. touch
- D. algorithms
- E. None of the above Discuss
- 10. The logic 1 in positive logic system is represented by:
Options- A. zero voltage
- B. lower voltage level
- C. higher voltage level
- D. negative voltage
- E. None of the above Discuss
More questions
Correct Answer: rmdir
Correct Answer: Two - a negative terminal and a positive terminal
Correct Answer: increasing the area of the plates
Correct Answer: ATH
Correct Answer: RD
Correct Answer: IEEE 1284
Correct Answer: hardware
Correct Answer: All of the above
Correct Answer: symbols
Correct Answer: higher voltage level
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