Questions

Tappings are provided in order to maintain the terminal voltage across the loads within the permissible specified limits with respect to load variations.

Generally tappings are preferred on HV side, because the HV side is low current side, tap changer involves low current interruption and large variations or small steps are possible due to more no of turns.

The rank of 2nd Lieutenant/Act. Sub Lieutenant/Pilot Officer were removed because the salary of the officers holding these ranks were less compared to senior Non-Commissioned Officers i.e Subedar Major in army, Master Warrant Officer in air force and Master Chief Petty Officer -1st Class in navy.

Rest of the statements are incorrect.In modern armies, lieutenant general normally ranks immediately below general and above major general; it is equivalent to the navy rank of vice admiral, and in air forces with a separate rank structure, it is equivalent to air marshal.

Voter Verifiable Paper Audit Trail (VVPAT) machines are used during election process to verify that the vote polled by a voter goes to the correct candidate. VVPATs are a second line of verification particularly and are particularly useful in the time when allegations around Electronic Voting Machines' tampering crop up.