DC Machines (Electrical Engineering) - MCQs
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Q1. |
which of the following DC motors, phone removal of load, will run at the maximum speed? |
- A. series
- B. shunt
- C. communicative compound
- D. differential compound
Q2. |
which of the following DC motors will have least percentage increase of input current, for the same percentage increase in torque |
- A. cumulative compound
- B. differential compound
- C. shunt
- D. series
Q3. |
the DC motor that draws almost same power at different loads is |
- A. communicative compound
- B. differential compound
- C. series
- D. shunt
Q4. |
the DC motor most suitable for applications requiring high starting torque is |
- A. shunt
- B. series
- C. cumulative compound
- D. differential compound
Q5. |
accumulative compound DC motor runs at 1500 RPM on full load if its series field is short circuited its speed |
- A. become zero
- B. remains same
- C. increases
- D. decreases
Q6. |
when ADC communicative compound wound motor is loaded |
- A. torque increases and speed decreases
- B. torque decreases and speed increases
- C. both speed and torque increases
- D. both speed and torque decreases
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