Electric Traction Methods can bring the locomotive to dead stop. Regenerative braking Rheostat braking None of the listed here Plugging braking Regenerative braking Rheostat braking None of the listed here Plugging braking ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Tractive effort is required to Accelerate the train mass All of the listed here Overcome the gravity component of train mass Overcome friction, windage and curve resistance Accelerate the train mass All of the listed here Overcome the gravity component of train mass Overcome friction, windage and curve resistance ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The efficiency of diesel locomotives is nearly 60 to 70 percent 45 to 55 percent 30 to 40 percent 20 to 25 percent 60 to 70 percent 45 to 55 percent 30 to 40 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of ___________ free running and coasting periods are generally long. Urban service Suburban service Mainline service All of the listed here Urban service Suburban service Mainline service All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In tram ways which of the following motors is used? AC. single phase capacitor start motor A.C. three phase motor D.C. series motor D.C. shunt motor AC. single phase capacitor start motor A.C. three phase motor D.C. series motor D.C. shunt motor ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Pole changing Cascade control Combination of cascade and pole changing Rheostat control Pole changing Cascade control Combination of cascade and pole changing Rheostat control ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS