A. Cast steel
B. Aluminium
C. Soft steel
D. Cast iron
Correct Answer: Cast iron ✔
Last Updated: December 22, 2018
Related MCQs
- Commercial available medium size machines have a speed range of __________ ?
- The change in flux linkages can be caused in which of the following ways ?
- The action of electromagnetic machines can be related to which of the following basic principles __________?
- The length cf air gap to be provided in __________ is primarily determined by power factor consideration?
- The design of mechanical parts is particularly important in case of __________ speed machines?
- impose limitation on design__________?
- If an insulating material is operated beyond the maximum allowable temperature, its life is__________?
- Electrical machines having a power output up to about 750 W may be called__________machines?
- In induction motors, the length of air gap in kept as small as mechanically possible is order to have__________?
- Which of the following is the major consideration to evolve a good design ?
- The efficiency of a machine should be as __________ as possible to reduce the operating cost?
- Electrical machines having power outputs ranging from a few kW up to approximately 250 kW may be classified as__________?
- In _________ machines, the size of the shaft is decided by the critical speed which depends on the deflection of the shaft?