D.C. shunt motors are used for driving machine tools.
A D.C. shunt motor is a type of electric motor that uses direct current (DC) to power its electromagnets. The motor’s speed is controlled by adjusting the amount of current that flows through the electromagnets. D.C. shunt motors are often used in machine tools because they are very precise and can be easily controlled.
Trains, cranes, and hoists are all powered by electric motors, but they typically use different types of motors than D.C. shunt motors. Trains often use AC motors, which are more efficient at high speeds. Cranes and hoists often use DC motors, but they are typically of the series type, which is more powerful than the shunt type.
In conclusion, D.C. shunt motors are used for driving machine tools because they are precise and can be easily controlled.