Quiz: Electrical Engineering
Exam: NLC
Topic: Miscellaneous
Each question carries 1 mark.
Negative marking: 1/4 mark
Time: 10 Minute
Q1. What is the most effective way to reduce the cost of power generation in a power station?
(a)By increasing the diversity factor and decreasing the load factor
(b)By increasing both the diversity factor and the load factor
(c)By decreasing both the diversity factor and the load factor
(d)By decreasing the diversity factor and increasing the load factor.
L1Difficulty 3
QTags Power generation, transmission and distribution
QCreator Balwant Kumar
Q2. The measurement of dielectric loss and power factor is done using
(a)Schering Bridge
(b)Hays Bridge
(c)Weins Bridge
(d)Wheat Stone Bridge
L1Difficulty 3
QTags Instruments & Measurements
QCreator Balwant Kumar
Q3. What is the value of total electric flux coming out of closed surface?
(a)Zero
(b)Equal to volume charge density
(c)Equal to the total charge enclosed by the surface
(d)Equal to the surface charge density
L1Difficulty 3
QTags Magnetic circuit
QCreator Balwant Kumar
Q4. The direction of rotation of hysteresis motor is determined by the:
(a)Resistivity of the rotor material.
(b)Amount of hysteresis loss.
(c)Permeability of rotor material.
(d)Position of shaded pole w.r.t main pole.
L1Difficulty 3
QTags DC Motor
QCreator Balwant Kumar
Q5. What is the dimensional representation of Power?
(a)ML2T-3
(b)M2L2T-3
(c)MLT-3
(d)M2 LT-2
L1Difficulty 3
QTags Basic electrical engineering
QCreator Balwant Kumar
Q6. Fermi level is the measure of
(a)Doping of electrons
(b)Probability of occupancy of electrons or holes
(c)Probability of occupancy of photons
(d)Probability of occupancy of wavelength
L1Difficulty 3
QTags Basic electrical engineering
QCreator Balwant Kumar
Q7. In order to minimize loss due to hysteresis, the magnetic material should have
(a)high resistivity
(b)low hysteresis coefficient
(c)large B-H loop area
(d)high retentivity
L1Difficulty 3
QTags Magnetic circuit
QCreator Balwant Kumar
Q8. Internal resistance of a cell depends on
(a)Terminal voltage
(b)Torque
(c)Current
(d)Area of the plate
L1Difficulty 3
QTags Basic electrical engineering
QCreator Balwant Kumar
Q9. FET belongs to which of the following type of device?
(a)Current controlled device
(b)Magnetic device
(c)Power controlled device
(d)Voltage controlled device
L1Difficulty 3
QTags Analog and digital electronics (electrical engineering)
QCreator Balwant Kumar
Q10. When ‘n’ resistances each of value ‘r’ are connected in parallel, then the resultant resistance is ‘x. when these ‘n’ resistances are connected in series, total resistance is :
(a)n2X
(b)X/n
(c)n2/X
(d)nX
L1Difficulty 3
QTags Basic electrical engineering
QCreator Balwant Kumar
Solution
S1. Ans(b)
Sol. The most effective way to reduce the cost of power generation in a power station by increasing
both the diversity factor and the load factor
S2. Ans(a)
Sol. Schering bridge
S3. Ans(c)
Sol. Total electric flux coming out of closed surface equals to total charge enclosed by the surface
S4. Ans(d)
Sol. Position of shaded pole w.r.t pole
S5. Ans(a)
Sol. ML2T-3
S6. Ans(b)
Sol. Probability of occupancy of electrons or holes
S7. Ans(b)
Sol. Low hysteresis coefficient
S8. Ans(d)
Sol. Area of the plate
S9. Ans(d)
Sol. FET belongs to Voltage control device
S10. Ans(a)
Sol. N2X
