1. Which braking method is the best method for obtaining high braking torque? A. Regenerative braking B. Plugging C. Dynamic braking D. Rheostatic braking 2. The polarity of back e.m.f changes in which of the method? A. Plugging B. Regenerative braking C. Dynamic braking D. Rheostatic braking 3. Full form of WRIM. A. …
1. Which braking method is the best method for obtaining high braking torque? A. Regenerative braking B. Plugging C. Dynamic braking D. Rheostatic braking 2. The polarity of back e.m.f changes in which of the method? A. Plugging B. Regenerative braking C. Dynamic braking D. Rheostatic braking 3. Full form of WRIM. A. …
Countercurrent Braking MCQ 1. The value of unit step function at t=5 sec is ________ A. 0 B. 1 C. -1 D. 2 2. The value of impulse at t=0 is __________ A. 0 B. 2 C. 1 D. infinite 3. What is the Full form of IFOC? A. Indirect field-oriented control …
1. Plugging is suitable for __________ type loads. A. Gravitational B. Electrostatic C. Weightless D. Leading 2. In DC shunt machine ∅ is directly proportional to Ia. A. True B. False 3. Braking resistance should be selected in order to limit the braking current. A. True B. False 4. Torque developed in …
1. Order of the circuit is the number of memory elements present in the circuit. A. True B. False 3. Choose the Induction motor with peak speed. A. 10 Pole B. 12 Pole C. 14 Pole D. 16 Pole 4. Which starting method is the best method for Induction motor? A. Direct online …
1. Dynamic braking requires a strong _________ A. Magnetic field B. Electrostatic field C. Nuclear field D. Gravitational field 2. In DC series machine ∅ is directly proportional to Ia. A. True B. False 4. At the starting, the field is very strong but it decreases with time because of the ________ A. …
1. The sine function is an odd function. A. True B. False 2. The cosine function is an even function. A. True B. False 3. Full form of NENO. A. Neither even nor odd B. Neither energy nor odd C. Neither even nor original D. Neither even nor orthogonal 4. The characteristics …
1. Which braking method is the best method for obtaining high braking torque? A. Regenerative braking B. Plugging C. Dynamic braking D. Rheostatic braking 2. In which of the following method the polarity of back e.m.f change? A. Plugging B. Regenerative braking C. Dynamic braking D. Rheostatic braking 3. What is the Full …
1. Power input to an induction motor is given by _________ A. 3VpIpcosΦ B. 2VpIpcosΦ C. VpIpcosΦ D. 5VpIpcosΦ 2. For motoring mode, the phase angle between the stator phase voltage and stator phase current should be _______ A. < 90° B. > 90° C. < 40° D. 180° 3. The relative speed …
1. What is the condition for the maximum power transfer theorem in DC circuits? A. RL=2Rth B. RL≠Rth C. RL≫ Rth D. RL=Rth 2. Instantaneous power in the 3-φ system is constant. A. True B. False 3. The length of phasor is ___________ A. R.M.S B. Average C. Peak to Peak D. Minimum …
