Resistance and Power problems
- 1. How do fixed resistors usually fail?
Options- A. slowly over time
- B. by increasing their value
- C. by becoming an open circuit
- D. by increasing their value and becoming an open circuit Discuss
Correct Answer: by becoming an open circuit
- 2. What resistor type is found in SIPs and DIPs?
Options- A. metal film
- B. wirewound
- C. metal oxide
- D. thick film Discuss
Correct Answer: thick film
- 3. Resistors are identified as to wattage by:
Options- A. size
- B. color code
- C. types of materials
- D. internal construction Discuss
Correct Answer: size
- 4. A color code of orange, orange, orange is for what ohmic value?
Options- A. 22 kilohms
- B. 3300 ohms
- C. 44000 ohms
- D. 33 kilohms Discuss
Correct Answer: 33 kilohms
- 5. How many amps are used by a 100 watt, 120 volt light bulb?
Options- A. 1.2 amps
- B. 12000 amps
- C. 830 mA
- D. 12 amps Discuss
Correct Answer: 830 mA
- 6. How many joules of energy will a 10 W lamp dissipate in one minute?
Options- A. 10 joules
- B. 60 joules
- C. 600 joules
- D. 3600 joules Discuss
Correct Answer: 600 joules
- 7. With a complex circuit, a supply source senses:
Options- A. open circuit components
- B. when voltages need to be increased
- C. only a single resistive connection
- D. when complex currents are needed Discuss
Correct Answer: only a single resistive connection
- 8. How many connections does a rheostat have?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
Correct Answer: 2
- 9. A good fuse will have:
Options- A. zero ohms resistance
- B. a medium resistance
- C. a high resistance
- D. an infinite resistance Discuss
Correct Answer: zero ohms resistance
- 10. What are the parts of a rheostat?
Options- A. wiper and resistor track
- B. solenoid and armature
- C. contact and wire wound
- D. center tape and wiper Discuss
Correct Answer: wiper and resistor track
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