A 12 V car battery supplies a dc shunt motor. The motor shunt coil resistance is 15 Ω and the armature resistance is 0.03 Ω. In open circuit conditions, the motor speed is 700 rpm, and its input current is 5 A. Calculate the motor speed at a load of 0.5 hp.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor