GURU MCQs provides Electrical Engineering MCQs for Job Test and Interview Preparation, suitable for fresh graduates, students, and competitive exams. Most repeated Electrical Engineering MCQs section is frequently encountered in CSS, PMS, Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments. Electrical Engineering most repeated MCQs include Analog and Digital Communications, Control Systems, Power Electronics, Electric Circuits, Electric machines, Electrical measurement & units, Utilization of Electrical Energy, Basic Electrical Engineering, Electrical Installation, Power Systems, Testing & maintenance of electrical equipment’s – and much more.
**141. Which of the following materials is not used for transmission and distribution of electrical power?**
A. Copper
B. Aluminium
C. Steel
D. **Tungsten**
**142. Galvanised steel wire is generally used as?**
A. stay wire
B. earth wire
C. structural components
D. **all of the above**
**143. The usual spans with R.C.C. poles are?**
A. 40—50 meters
B. **60—100 meters**
C. 80—100 meters
D. 300—500 meters
**144. The corona is considerably affected by which of the following?**
A. Size of the conductor
B. Shape of the conductor
C. Surface condition of the conductor
D. **All of the above**
**145. Which of the following are the constants of the transmission lines?**
A. Resistance
B. Inductance
C. Capacitance
D. **All of the above**
**146. 310 km line is considered as?**
A. a long line
B. a medium line
C. a short line
D. **any of the above**
**147. The phenomenon of rise in voltage at the receiving end of the open-circuited or lightly loaded line is called the?**
A. Seeback effect
B. **Ferranti effect**
C. Raman effect
D. none of the above
**148. The square root of the ratio of line impedance and shunt admittance is called the?**
A. **surge impedance of the line**
B. conductance of the line
C. regulation of the line
D. none of the above
**149. Which of the following is the demerit of a ‘constant voltage transmission system’?**
A. **Increase of short-circuit current of the system**
B. Availability of steady voltage at all loads at the line terminals
C. Possibility of better protection for the line due to possible use of higher terminal reactants
D. Improvement of power factor at times of moderate and heavy loads
E. Possibility of carrying increased power for a given conductor size in case of long-distance heavy power transmission
**150. The operating voltage of high voltage cables is up to?**
A. l.lkV
B. 3.3kV
C. 6.6kV
D. **llkV**