MCQOPTIONS
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MCQOPTIONS
| 1. |
A 4-pole Dc wound machine is lap wound with 400 conductors. The pole shore is 20 cm long and average flux density over one-pole pitch is 0.4 T, the armature diameter being 30 cm. Here, motor is drawing 25 A current at 1500 rpm.What is the available torque (N-m) at shaft?a) 29.9b) 59.8c) 14.95d) 44.85 4.When Ea>Vt machine is said to be operating in which of the following mode? |
| A. | 29.9b) 59.8c) 14.95d) 44.85 4.When Ea>Vt machine is said to be operating in which of the following mode?a) Depends on the Shaft speed |
| B. | 59.8c) 14.95d) 44.85 4.When Ea>Vt machine is said to be operating in which of the following mode?a) Depends on the Shaft speedb) Generating |
| C. | 14.95d) 44.85 4.When Ea>Vt machine is said to be operating in which of the following mode?a) Depends on the Shaft speedb) Generatingc) Motoring |
| D. | 44.85 4.When Ea>Vt machine is said to be operating in which of the following mode?a) Depends on the Shaft speedb) Generatingc) Motoringd) InducingView Answer |
| Answer» B. 59.8c) 14.95d) 44.85 4.When Ea>Vt machine is said to be operating in which of the following mode?a) Depends on the Shaft speedb) Generating | |