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Electrical Engineering Objective Questions { Power System }



92. Moderator used in fast breeder reactor is
A. heavy water
B. graphite
C. both (a) and (b) above
D. none of these

93. Photo-voltaic cell produces electric energy from
A. electromagnetic energy
B. electrostatic energy
C. geothermal energy
D. both A and B above

94. Collectors used for collecting solar energy are
A. paraboloid
B. solar radiators
C. flat plate and focussing solar collectors
D. none of these

95. In MHD generation, emf induced is
A. motionally induced emf
B. static emf
C. Hall emf
D. both A and C above

96. The principal type of failure in wind power generation is in
A. aerodynamic system
B. electrical system
C. mechanical system
D. both B and C above

97. The EHV system is one operating beyond
A. 11 kV
B. 132 kV
C. 200 kV
D. 400 kV

98. The advantage of dc systems over ac systems is
A. improved line regulation
B. no skin effect
C. no charging currents
D. all of these

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