Electrical Engineering · Question Bank

circuits

301 questions · page 4 of 16. Answer in your head first, then check the solution.

#61
An intermittent and non-symmetrical alternating current like that obtained from the secondary winding of an induction coil.
AFaradic current
BTransient ac current
CInductive current
DCapacitive current
#62
The value of temperature coefficient, alpha, is dependent upon
Athe nature of material and temperature
Bthe length of material
Cthe cross-sectional area of the material
Dthe volume of the material
#63
If two equal resistances connected in series across a certain supply are now connected in parallel across the same supply, the power produced will be _____ the series connection.
A1/2
B1/4
C2x
D4x
#64
The voltage lags the current by pi/2 cycle in a
Apurely resistive circuit
Bpurely inductive circuit
Cpurely capacitive circuit
Dcircuit containing resistance, capacitance, and inductance
#65
What is the half-power bandwidth of a parallel resonant circuit which has a resonant frequency of 3.6 MHz and Q of 218?
A1.65 kHz
B16.5 MHz
C16.5 KHz
D165 KHz
#66
Which of the following materials serves as protection against overload?
Afuse
Bswitch
Cresistor
Drelay
#67
Transient period is considered over after
A5 time constants
B1 time constant
C100 time constants
D6 time constants
#68
An open inductor has
Azero resistance and infinite inductance
Binfinite resistance and zero inductance
Cinfinite resistance and infinite inductance
Dzero resistance and zero inductance
#69
What is the reading of an ohmmeter for a shorted capacitor?
Azero
Binfinity
Ck ohms
DM ohms
#70
_____ capacitance exists not through design but simply because two conducting surfaces are relatively close to each other.
Asurge
Bstray
Cnatural
Dnormal
#71
The average value of a sawtooth or triangular wave is _____ times its peak value.
A0.577
B0.500
C0.318
D0.637
#72
What is the peak factor of a triangular wave?
A1.16
B1.73
C1.41
D1.11
#73
Parallel resonant circuit is sometimes called as
Aacceptor circuit
Brejector circuit
Cinductive circuit
Dcapacitive circuit
#74
When two pure sine waves of the same frequency and the same amplitude which are exactly 180 degrees out of phase are added together, the result is
Aa wave with twice the amplitude
Ba wave with half the amplitude
Czero signal
Da wave with twice the frequency
#75
If two complex conjugates are added, _____ component results.
Ain-phase
Bquadrature
Ccomplex
Dout of phase
#76
If an emf in circuit A produces a current in circuit B, then the same emf in circuit B produces the same current in circuit A. This theorem is known as
AMaximum power transfer theorem
BMillman's theorem
CReciprocity theorem
DNorton's theorem
#77
According to Gauss' theorem, flux can be equated to
Acharge
Bfield intensity
Ccurrent
Dvoltage
#78
An open resistor when checked with an ohmmeter reads
Azero
Binfinite
Chigh but within the tolerance
Dlow but not zero
#79
Norton's theorem is _____ Thevenin's theorem.
Athe same as
Bthe converse of
Colder than
Dmore accurate than
#80
Which of the following is the statement of Ohm's law?
AElectric current is directly proportional to both voltage and resistance
BElectric current varies directly as the voltage and inversely as the resistance
CElectric power is directly proportional to the resistance and inversely as the current squared
DElectrical power is directly proportional to both voltage squared and the resistance

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