https://www.geekmcq.com/

Engineering :: Fluid Mechanics and Hydraulic Machines


311.  The disadvantage of burried penstocks is
A. Protection against effect of temperature because of soil cover B. Protection against freezing of conveyed water
C. Protection against earthquake shock D. Immunity against rock sides, avalanches and falling tree
E. Difficulty in repair and maintenance    

312.  The advantage of exposed penstock is
A. Safety against sliding B. Full exposure to external variation in temperature
C. Expansion joints necessary D. Changes of water conveyed being frozen in severe cold climates
E. Longitudinal stresses may develop owing to anchorages    

313.  Anchor blocks are provided to hold the pipe line so as to
A. Prevent the pipe line sliding down the hill B. Control the direction of expansion
C. Resist the unbalanced hydrostatic forces at a change of direction of the pipe line D. Prevent movement of the pipe line on account of vibration or water hammer pressures
E. All of the above    

314.  In which contact condition case the value of coefficient of friction is expected to be highest?
A. Steel on concrete B. Steel on steel
C. Steel on steel, greased plates D. Packing and liner
E. Steel on steel with two layers of graphite service in between    

315.  Highest value of sliding factor may be expected in case of
A. Concrete on sand B. Concrete on rock
C. Concrete on clayey soil D. Concrete on gravel
E. Concrete on fine gravel    

316.  The maximum continuous power available from a hydro-electric plant under the most adverse hydraulic conditions is known as
A. Base power B. Firm power
C. Primary power D. Secondary power
E. Installed capacity    

317.  A plot between power generated in MW and time is known as
A. Load curve B. Load duration curve
C. Load factor D. Demand curve
E. None of the above    

318.  The ratio of maximum load to the rated plant capacity is known as
A. Load factor B. Utilization factor
C. Maximum load factor D. Capacity factor
E. Plant factor    

319.  Portion of the installed reserve kept in operable condition but not placed in service to supply the peak load is known as
A. Operating reserve B. Spinning reserve
C. Cold reserve D. Hot reserve
E. None-spinning reserve    

320.  Capacity of a hydro-electric plant in service in excess of the peak load is known as
A. Operating reserve B. Spinning reserve
C. Cold reserve D. Hot reserve
E. Peak reserve    




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

Contact us: info@geekmcq.com