A) 10 percent B) 25 percent C) 50 percent D) 75 percent. Ans : (D)
A) Lead acid cells B) Edison cells C) Laclanche cells D) Any of the above. Ans : (A)
A) 65 % B) 25 % C) 15 % D) 10 %. Ans : (A)
A) Incandescent lamp B) Wankel engine C) Storage battery D) Solar cell. Ans : (A)
A) radioactive decay of materials B) carbon dioxide percentage variation with elevation C) wind distribution in the planetary boundary layer D) ocean temperature gradient. Ans : (C)
A) the same as eddy current B) the movement of the tidal current away from shore or down a tidal stream C) the removal by screen of undesirable fine materials from broken are D) none of the above. Ans : (B)
A) chemical reaction B) latent heat C) sensible heat D) any of the above. Ans : (D)
A) Kinetic flywheels B) Super-conducting coils C) Torsion bar system D) Pumped hydro-system. Ans : (B)
A) Girard turbine B) Jonal turbine C) Banki turbine D) None of the above. Ans : (D)
A) wet coal B) black earth C) coal duet D) lignite. Ans : (D)