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Home ‣ Electronics ‣ Arithmetic Operations and Circuits See What Others Are Saying!
  • Question

  • The carry propagation delay in 4-bit full-adder circuits ____________.


  • Options
  • A. is normally not a consideration because the delays are usually in the nanosecond range
  • B. is cumulative for each stage and limits the speed at which arithmetic operations are performed
  • C. decreases in direct ratio to the total number of full-adder stages
  • D. increases in direct ratio to the total number of full-adder stages, but is not a factor in limiting the speed of arithmetic operations

  • Correct Answer
  • is cumulative for each stage and limits the speed at which arithmetic operations are performed 

    • More questions

    • 1. If a sine wave signal is 100 mV peak-to-peak, how many volts would be measured by a voltmeter?

    • Options
    • A. 14.14 mV
    • B. 35.4 mV
    • C. 63.7 mV
    • D. 70.7 mV
      • Discuss
    • 2. 

      In the given circuit, what is RUNK equal to if RV must be adjusted to 1,232 Ω in order to balance the bridge?


    • Options
    • A. 220 Ω
    • B. 6,899 Ω
    • C. 1,232 Ω
    • D. More information is needed in order to find RUNK.
      • Discuss
    • 3. Current cannot flow to ground through a(n) ________.

    • Options
    • A. mechanical ground
    • B. ac ground
    • C. virtual ground
    • D. virtual short
      • Discuss
    • 4. Once a PAL has been programmed:

    • Options
    • A. it cannot be reprogrammed.
    • B. its outputs are only active HIGHs
    • C. its outputs are only active LOWs
    • D. its logic capacity is lost
      • Discuss
    • 5. 
      Atoms in a silicon crystal are held together by ___ bonds.

    • Options
    • A. crystal
    • B. chemical
    • C. electrical
    • D. covalent
      • Discuss
    • 6. Maximum power will transfer across a transformer when the primary impedance equals the secondary impedance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. A transformer has

    • Options
    • A. primary and secondary windings, both of which are considered inputs
    • B. primary and secondary windings, both of which are considered outputs
    • C. a primary winding used as an output and a secondary winding used as an input
    • D. a primary winding used as an input and a secondary winding used as an output
      • Discuss
    • 8. The data stored in a Mask ROM (MROM) is ___________.

    • Options
    • A. permanent
    • B. volatile
    • C. erasable
    • D. temporary
      • Discuss
    • 9. An op-amp circuit in which the output voltage is equal to the difference between the two input voltages is called a(n) _____

    • Options
    • A. integrator
    • B. differentiator
    • C. differential amplifier
    • D. voltage regulator
      • Discuss
    • 10. Series LC combinations are used more often in tuned amplifier circuits than are parallel LC combinations.

    • Options
    • A. True
    • B. False
      • Discuss

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