General Science question from Sub Inspector exam, 2022 by JKSSB
EVMs are used in Indian General and State Elections by voters to cast their vote. EVM is an acronym for
Last updated Jun 24, 2026
Correct Answer:
Option D —
Electronic Voting Machine
How an EVM Works An EVM consists of two main units joined by a five-meter cable. This design ensures that the actual "brain" of the machine is controlled by an election official, while the voter remains private.
Control Unit: This stays with the Presiding Officer. They press a button to "enable" the machine for the next voter.
Balloting Unit: This is inside the voting compartment. It has buttons next to the names and symbols of the candidates.
The Addition of VVPAT
In recent years, you might have noticed a third box attached to the EVM. This is the VVPAT (Voter Verifiable Paper Audit Trail). When you cast your vote, it prints a small slip of paper that you can see through a glass window for 7 seconds. This allows you to verify that your vote went exactly to the candidate you selected. Quick Facts
Battery Powered: EVMs don't need a plug-in power source; they run on an internal battery, so they can be used in remote villages without electricity.
No Internet: To prevent hacking, EVMs are "standalone" machines. They are never connected to the internet, Wi-Fi, or any Bluetooth network.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
