Draw the control circuit complete with referencing number and terminal number for an overhead crane according to the sequence described below: Figure 5: An overhead crane • Press pushbutton S1 (N/O), motor will move forward and green pilot light H1 wil turn on for 10 seconds. This is to allow the motor to reach the end limit of the crane. • After the motor reaches the end of travel (indicated by the delay time durations) the motor will stop and red pilot light H2 will turn On. • The control supply for this circuit is 48Vac. • Safety features must be included where: i. The motor must stop at condition the thermal overload relay tripped and an emergency button S2 is pressed.

#4. ANSWER 1, 2, 3. NO ROUNDING OFF. STRICTLY HANDWRITTEN THEN BOX THE FINAL ANSWERS. RUSH PLS

N1. Weakening of the magnetic field of a DC shunt motor, by adding resistance in series with the field, could result in an overspeed condition. a) true b) false N2. A shunt field relay is designed to_________.a) shut down power to the shunt field circuit of a DC motor if the voltage gets to high b) increase the resistance of the shunt field circuit during an overload condition c) disconnect the armature from the power supply if the current in the shunt field circuit gets to high d) none of the above N3- 18,650 watts equals_________ horsepower. a) 9 b) 17 c) 25 d) none of the above

in a motor that has a rotating magnetic field, the speed of that magnetic field is referred to as the ____.