Objective Questions Short notes Objective questions (Answers are given below) A steel mill requires a motor having highstarting torque, wide speed range and precisespeed control. Which one of the followingmotors will you choose ?(a) d.c. shunt motor(b) synchronous motor(c) d.c. series motor(d) slip-ring induction motor. Heavy-duty steel-works cranes which havewide load variations are equipped with…………….. … Read more
Objective Questions Short notes Objective questions (Answers are given below) Diesel electric traction has comparatively limitedoverload capacity because(a) diesel electric locomotive is heavier than aplain electric locomotive(b) diesel engine has shorter life span(c) diesel engine is a constant-kW outputprime mover(d) regenerative braking cannot be employed. The most vital factor against electric tractionis the(a) necessity of … Read more
DISTRIBUTION AUTOMATION MCQ Objective Questions Short notes Objective questions (Answers are given below) Need based energy management is better thandemand based energy management(a) true (b) false Round the clock power is required to(a) agricultural uses(b) shift based industries(c) commercial organisations(d) essential services Need based energy management would include(a) plan power generation as per forecast(b) monitor … Read more
Objective Questions Short notes Objective questions (Answers are given below) With same maximum voltage between conductors,the ratio of copper volumes in 3-phase, 3-wire system and 1-phase, 2-wire system is(a) 4/3 (b) 3/4(c) 5/3 (d) 3/5 The volume of copper required for an a.c. transmissionline is inversely proportional to(a) current (b) voltage(c) power factor (d) both … Read more
Objective Questions Short notes Objective questions (Answers are given below) If in a d.c. 2-wire feeder, drop per feederconductor is 2%, transmission efficiency ofthe feeder is ……………………… percent.(a) 98 (b) 94(c) 96 (d) 99 Transmitted power remaining the same, ifsupply voltage of a dc 2-wire feeder isincreased by 100 percent, saving in copperis …………………….. percent.(a) … Read more