Low head power plants generally use: Pelton Wheel Turbine
Description : Low head plants generally use (A) Pelton Turbines (B) Francis Turbine (C) Pelton or Francis Turbine (D) Kaplan Turbines
Last Answer : Ans: A In the hysterisis motor, the direction of rotation can be reversed by shifting the shaded pole region with respect to main pole. But not by changing supply lead because it has ac supply.
Description : The pump used for irrigation purposes is generally designed for (A) Large capacity & high head (B) Large capacity & low head (C) Small capacity & high head (D) Small capacity & low head
Last Answer : (B) Large capacity & low head
Description : Multistage centrifugal pumps are generally used for (A) High head (B) Low head but high discharge (C) Highly viscous liquid (D) Slurries of high solid concentration
Last Answer : (A) High head
Description : For low voltage applications (below 1 kV),_______cables are used. (A) paper insulated (B) plastic (C) single core (D) oil filled
Last Answer : For low voltage applications (below 1 kV), single core cables are used.
Description : Heavy water plants are generally located near (a) Major irrigation projects (b) Hydroelectric projects (c) Fertilizer plants (d) Nuclear power plants
Last Answer : Ans: (c)
Description : The maximum power in a synchronous motor (for a given excitation) is produced when the power angle is equal to: (A) 0° (B) 45° (C) 60° (D) 90°
Last Answer : The power produce is maximum when the power angle(torque angle) is 90, because P=VE(a)sin(theta)/X(s). Where, P is the power per phase. V is the phase voltage. E(a) is the ... Sin(theta) is the angle between rotor feild and stator feild. X(s) is the synchronous reactance of the machine.
Description : The rotor power output of a 3 -phase induction motor is 15 kW and the corresponding slip is 4%. The rotor copper losses will be: (A) 600 W (B) 625 W (C) 650 W (D) 700 W
Last Answer : The rotor power output of a 3 -phase induction motor is 15 kW and the corresponding slip is 4%. The rotor copper losses will be: 625 W
Description : With regard to the expressive power of the formal relational Query languages, which of the following statements is TRUE? A) relational algebra is more powerful than relational calculus B) relational ... calculus C) relational algebra has the same power as safe relational calculus D) None of these
Last Answer : relational algebra has the same power as safe relational calculus