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MCQs

Total Questions : 474 | Page 46 of 48 pages
Question 451. When a computer fetches an instruction, the binary code representing the instruction appears on the:
  1.    I/O address bus
  2.    memory data bus
  3.    input data bus
  4.    output data bus
  5.    None of the above
 Discuss Question
Answer: Option B. -> memory data bus
Question 452. A microprocessor is:
  1.    controlled by a program
  2.    an integrated circuit
  3.    relatively inexpensive
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 453. If the present value in a timer in the TI510 is 8, how many milliseconds is required from the time the timer is started until the output is enabled?
  1.    18
  2.    133.36
  3.    149.88
  4.    1275.41
  5.    None of the above
 Discuss Question
Answer: Option B. -> 133.36
Question 454. A common way to take x, y coordinates off a drawing is to use a
  1.    light pen
  2.    digitiser
  3.    Direct view storage tube (DVST)
  4.    Tablet
  5.    None of the above
 Discuss Question
Answer: Option B. -> digitiser
Question 455. Which of the following is not critical in PC CAD software?
  1.    Crosshatching
  2.    Layering
  3.    Drawing/editing
  4.    Damping
  5.    None of the above
 Discuss Question
Answer: Option D. -> Damping
Question 456. The two types of relays in a PC are:
  1.    an output relay and a control relay
  2.    a control relay and a retentive relay
  3.    a retentive relay and a non-retentive relay
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option A. -> an output relay and a control relay
Question 457. How is the integral mode implemented on a digital controller?
  1.    the digital controller cannot handle integral mode
  2.    the error is divided into discrete amounts
  3.    the error signal is summed over a discrete time interval and accumulated by the controller
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option C. -> the error signal is summed over a discrete time interval and accumulated by the controller
Question 458. The parallel register:
  1.    can store a multiple bit binary number
  2.    uses R-S flip-flops
  3.    All of the above
  4.    is erased after a word is read fromit
  5.    None of the above
 Discuss Question
Answer: Option A. -> can store a multiple bit binary number
Question 459. A thermistor:
  1.    is a pressure sensing device
  2.    has a voltage output
  3.    measures temperature
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option C. -> measures temperature
Question 460. Many things can be done to minimize downtime loss. Identify two of them.
  1.    establish a user forum program
  2.    stock critical spare parts
  3.    provide an extra workstation
  4.    both b and c
  5.    None of the above
 Discuss Question
Answer: Option D. -> both b and c

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