Electrical Machines The torque speed characteristics of a AC servomotor is approximately linearised any of the above hyperbola parabola linearised any of the above hyperbola parabola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux involved in the emf equation of a transformer has rms value. maximum value. total value. average value. rms value. maximum value. total value. average value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 963.8 r.p.m. 4575.4 r.p.m. 1130 r.p.m. 1037.5 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. 1130 r.p.m. 1037.5 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100 KVA transformer is operating at 60 Hz, 240 V supply. The same transformer is operating at 50 Hz, 200 V supply. The new rating is 100 KVA 50 KVA 83.33 KVA 123.3 KVA 100 KVA 50 KVA 83.33 KVA 123.3 KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The overall power factor of an on load transformer depends on the power factor of the load. is always unity. is always lagging. is always leading. depends on the power factor of the load. is always unity. is always lagging. is always leading. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 2 pole synchronous machine is operating at 3000 rpm. Find the relation between electrical angular momentum (ωe) and mechanical angular momentum (ωm) ? ωe = 4*ωm ωe = 2*ωm ωe = ωm ωe = 1/2*ωm ωe = 4*ωm ωe = 2*ωm ωe = ωm ωe = 1/2*ωm ANSWER DOWNLOAD EXAMIANS APP
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