Electronics Engineering MCQs [Quiz 37]

Q1. Which one of the following elements serves as a protection against overload?
A. Fuse
B. Switch
C. Resistor
D. Relay

Q2. Transient period is considered over after
A. 5 v
B. 1 v
C. 100 v
D. 6 v

Q3. What rating of a resistor determines its ability to absorb heat?
A. Wattage
B. Ohmic
C. Current
D. Voltage

Q4. An open inductor has
A. Zero resistance and infinite inductance
B. Infinite resistance and zero inductance
C. Infinite resistance and infinite inductance
D. Zero resistance and zero inductance

Q5. What is the reading of an ohmmeter for a shorted capacitor?
A. Zero
B. Infinity
C. k fi
D. M fi

Q6. What capacitance exists not through design but simply because two conducting surfaces are relatively close to each other?
A. Surge
B. Stray
C. Natural
D. Normal

Q7. The average value of a triangular or sawtooth wave is times its peak value.
A. 0.577
B. 0.500
C. 0.318
D. 0.637

Q8. A series RLC circuit consists of a 10 fi resistor in series with L = 10 µH, and C = 100 µF. Determine a new value of I, for which the resonant frequency is one–half the original value.
A. 40 µH
B. 40 mH
C. 40 pH
D. 40 nH

Q9. What is the peak factor of a triangular wave?
A. 1.16
B. 1.73
C. 1.41
D. 1.11

Q10. Effects of capacitance
A. It opposes any change in the amount of voltage
B. Voltage is lagged behind the current by a quarter cycle
C. Electric energy is stored in the capacitor in the form of electrostatic field
D. All of the above

Updated: 14th August 2019 — 7:55 PM

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