Discussion
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- Question
A +5 V PCB power source that has been "pulled down" to a +3.4 V level may be due to:
Options- A. a circuit open
- B. a faulty regulator
- C. the half-split method
- D. a circuit short
- Correct Answer
- a circuit short
- 1. What is the difference between mnemonic codes and machine codes?
Options- A. There is no difference.
- B. Machine codes are in binary, mnemonic codes are in shorthand English.
- C. Machine codes are in shorthand English, mnemonic codes are in binary.
- D. Machine codes are in shorthand English, mnemonic codes are a high-level language. Discuss
- 2. Ohm's law describes the mathematical relationship between
Options- A. ohms, kilohms, and megohms
- B. resistor size and resistor value
- C. resistance, voltage, and current
- D. none of the above Discuss
- 3. Select the best description of read-only memory (ROM).
Options- A. nonvolatile, used to store information that changes during system operation
- B. nonvolatile, used to store information that does not change during system operation
- C. volatile, used to store information that changes during system operation
- D. volatile, used to store information that does not change during system operation Discuss
- 4. The joule is the unit for ___.
Options- A. energy
- B. charge
- C. time
- D. frequency Discuss
- 5. Which of the following cannot actually move?
Options- A. majority carriers
- B. ions
- C. holes
- D. free electrons Discuss
- 6. What are the unit and symbol for current?
Options- A. Ampere, A
- B. Coulomb, I
- C. Ampere, Q
- D. Ampere, I Discuss
- 7. A compiler is a translation program that converts high-level instructions into a set of binary instructions (machine code) for execution.
Options- A. True
- B. False Discuss
- 8. To ensure a high coefficient of coupling, all fixed transformers are usually wound on a(n) _____________.
Options- A. EI core
- B. iron core
- C. common core
- D. CI core Discuss
- 9. Convert 110010012 (binary) to decimal.
Options- A. 201
- B. 2001
- C. 20
- D. 210 Discuss
- 10. The use of a logic probe may be improved through the use of a(n) ________.
Options- A. logic clip
- B. frequency counter
- C. oscilloscope
- D. current tracer Discuss
More questions
Correct Answer: Machine codes are in binary, mnemonic codes are in shorthand English.
Correct Answer: resistance, voltage, and current
Correct Answer: nonvolatile, used to store information that does not change during system operation
Correct Answer: energy
Correct Answer: ions
Correct Answer: Ampere, I
Correct Answer: True
Correct Answer: common core
Correct Answer: 201
Correct Answer: logic clip
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