Name the materials used to make the following parts of ac machine in Table 1 and in each case state one reason why the material is used.b) State three factors to consider when choosing motor for a particular installation.
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Sketch and label the schematic diagram of a dc shunt motor connected to a supply.
Date posted: September 18, 2019. Answers (1)
Three capacitors are connected as shown in Figure 1.Figure 1Calculate:i. The equivalent capacitanceii. Charge stored in the 26μF capacitor
After installing new cells in a 2 cell torch it failed to light when switched on. State two possible causes for the failure.
State two reasons why the rotating field alternator is preferred to the rotating armature type.
a)The range of a moving iron instrument of resistance 8 ohms is extended by using a shunt resistor of 0.04 ohm. If the full scale deflection current is 10mA, determine the maximum current that the modified instrument can measure.b) State two advantages and two disadvantages of the moving iron instrument over moving coil instrument
State the role of Directorate of Industrial Training.
List two safety precautions taken while drilling through a piece of sheet metal.
State the most immediate action to be taken when rescuing a worker found unconscious and still in contact with a live wire.