1.The resistivity of water should not be less than

2.Which of the following methods is most accurate ?

3.The slot leakage can be calculated by making which of the following assumptions ?

4.The noise produced by a ______ cooled machine is less as the rotor moves in a medium of smaller density.

5.In self cooled motors the cooling time constant is about ______ than the heating time constant because cooling conditions are worse at standstill.