https://www.geekmcq.com/

Engineering :: Energy Conversion

101.  Which of the following material has the best conductivity?
A. Copper B. Aluminium
C. Cadmium copper D. ACSR
102.  The expected life of wooden pols for transmission line is
A. 1 to 2 years B. 2 to 5 years
C. 5 to 8 years D. 20 to 25 years
E. 30 to 60 years    
103.  A pin type insulator is generally used upto
A. 1.1 kV B. 11 kV
C. 33 kV D. 66 kV
E. 132 kV    
104.  Corona generally results in
A. Violet glow B. Hissing noise
C. Production of ozone gas D. All of the above
E. None of the above    
105.  Which of the following factor affects corona?
A. Atmospheric conditions B. Conductor size
C. Spacing between conductors D. Line voltage
E. All of the above    
106.  The effect of corona can be reduced by
A. Increasing the conductor size and reducing the spacing between the conductors B. Increasing the conductor size and also by increasing the spacing between the conductors
C. Reducing the conductor size and increasing the spacing between conductors D. Reducing the conductor size as well as spacing between the conductors
E. None of the above    
107.  The power loss in an overhead transmission line is mainly due to
A. Line resistance B. Line inductance
C. Heat loss D. Magnetic loss
E. All of the above    
108.  If the capacitance between two conductors of a 3 phse line is 4
A. 2 B. 4
C. 8 D. 12
109.  A 11 kV transmission line carries power to a distance of 30 kilometres. This will be termed as
A. Short transmission line B. Medium transmission line
C. Long transmission line D. Very long transmission line
E. None of the above    
110.  When a conductor is suspended between two supports at the same level it taken the shape of
A. Catenary B. Parabola
C. Cycloid D. Epicycloid
E. Semi-circle    

Read more:

© 2012-2024 by GeekMCQ™ Technologies. All Rights Reserved | Copyright | Terms of Use & Privacy Policy

Contact us: info@geekmcq.com