Explanation: Explanation : ONCE IN SIX MONTHS by Sr.DSTE AND ONCE IN A MONTH BY DSTE/ASTE

Explanation: Explanation : S. No. 12 years 4 25 years S. No. 7 OFC equipment and other electronic/wireless items 9 Class of Asset Cell phones Video Phones / WLL phones 8 years 11 12–15 years Batteries – WT for Drivers/Guards Batteries – WT for others 2 years Class of Asset

Explanation: Explanation : – Language in State Legislatures (State official language, Hindi, or English). Art. 210 – Language in Parliament (Hindi/English; mother tongue with permission). Art. 120

Explanation: Explanation : maximum permissible length for QNA1 in single line is 2.1km and in double line is 2.8km, The induced voltage in the under ground unscreened cable shall be reckoned as 116V/Km on Single line and 95 V/Km on Double line. Maxi. Length of parallelism permitted on screened cable is 3.5Km.

Explanation: Explanation : 70% ASTE 2024 100 % procurement by Indian Railway through IREPS and for any supply to Indian Railway registration on IREPS website is mandatory.

Explanation: Explanation : In , are used to establish, manage, and terminate calls. The two primary protocols are: SIP (Session Initiation Protocol): Most widely used for VoIP call setup, modification, and teardown Often seen in Handles signaling for Media Gateway Controllers (Call Agents) MGCP (Media Gateway Control Protocol): Used in systems where control Media Gateways carrier-grade VoIP networks VoIP (Voice over IP) telephony signaling protocols

Explanation: Explanation : Measure a. SSID Hiding Purpose Prevents network name from being openly broadcast, making it less visible to casual users. Protects both the admin interface and network access from brute-force attacks. Allows only specified MAC addresses to connect, controlling access to known devices. Limits dynamic IP assignments, making unauthorized DHCP access harder.

Explanation: Explanation : Technology US-based satellite navigation; used for continuous position updates. Kavach can use multiple satellite constellations for better accuracy. Works in 406–470 MHz band; uses ; ensures low-latency (<200 ms) safety-critical messages. Not the primary safety communication; GSM-R (Railway) is used in other ATP systems worldwide but Kavach mainly uses UHF.

Explanation: Explanation : Bending of a fiber optic cable can damage the cable if the radius of the bend is too small. The normal recommendation for fiber optic cable bend radius is the minimum bend radius under tension during pulling is 20 times the diameter of the cable. used by IR, keeping sufficient safety margin, bending radius under tension during pulling should always be greater than 30 times the diameter of the OFC.

Explanation: Explanation : , for: 🔹 Route setting systems 🔹 Non-route setting systems. Sectional route release when the number of routes exceeds . must be provided : 100 100 may be reused for setting other routes, . Sectional route release is also mandated when routes exceed . Sectional Route Release shall be provided at stations where the number of routes is more than Sub-routes already released Route Setting Installations Non-Route Setting Installations : Route is fully released only when: