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.Management Sciences
A. purely D.C. control systems
B. purely AC. control systems
C. both D.C. and AC. control systems
D. none of the above
Related Mcqs:
- Which of the following materials is used in the manufacture of resistance grids to be used in the starters of large motors ?
- A. Copper B. Aluminium C. Steel D. Cast-iron...
- The time taken by the machine to attain 0.632 of its final steady temperature rise is called_____________?
- A. heating time constant B. cooling time constant C. either A. or B. D. none of the above...
- Power transformers have rating_______________?
- A. equal to 50 kVA B. equal to 100 kVA C. above 200 kVA D. none of the above...
- Which of the following in an application of D.C. motors?
- A. Traction B. Drives for process industry C. Battery driven vehicles D. Automatic control E. All of the above...
- Transformers with a capacity of up to __________ have a cooling radiator system with natural cooling?
- A. 2 MVA B. 5 MVA C. 7.5 MVA D. 10 MVA...
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