Knowledge Booster: ASTE_Paper Edition (10 May 2026)
Welcome to today's ASTE_Paper Knowledge Booster! We've handpicked 10 essential questions from our database to help you sharpen your skills. Dive in and test your knowledge!
Q1. The cross-talk level can be measured after the termination point between adjacent pairs shall be better than ____. क्रॉस-टॉक स्तर को समाप्ति बिंदु के बाद मापा जा सकता है, आसन्न जोड़ों के बीच का स्तर ____ से बेहतर होना चाहिए।
- A) 3 dB
- B) -30 dB
- C) -60 dB
- D) -80 dB
Correct Answer: -60 dB
Explanation: Explanation : ➤ –60 dB Parameter The cross-talk level measured after the termination point between adjacent pairs shall be better than: Requirement Better than –60 dB at 1 kHz –60 dB Cross Talk (post termination) Input Impedance Max Output (No overload) Frequency Response 470 Ω ±10% –20 dBm input = 0 dBm output 0 to 12 dB in 300 Hz – 3.4 kHz range Nominal Gain 20 dB ±1 dB at 1 kHz ±3 dB from 300 Hz to 3.4 kHz Min Input → Max Output
Q2. Network Address Translation (NAT) is needed for ________________. ASTE 70% 2025. नेटवर्क एड्रेस ट्रांसलेशन (NAT) की आवश्यकता ________________ के लिए है। ASTE 70% 2025.
- A) only IPv4 traffic
- B) only IPv6 traffic
- C) both IPv4 and IPv6 traffic
- D) none of the options
Correct Answer: only IPv4 traffic
Explanation: Explanation : NAT is needed for — Conservation of IPv4 addresses. Allowing multiple devices in a LAN (with private IPs) to share a single public IP. IPv6: since every device has a globally unique IPv6 Hiding internal network structure for security. there is no need for NAT. address,
Q3. Sub-systems in on-board Kavach include _____________. CBT ASTE 2025 कवच पर लगे उप-प्रणालियों में ____________ शामिल हैं। CBT ASTE 2025
- A) pulse generator
- B) brake interface unit
- C) Loco TCAS vital computer
- D) All the options
Correct Answer: All the options
Explanation: Explanation : Key Sub-systems in On-board KAVACH
Q4. In the process of RDSO approval for new products of workshops, CCA stands for _______. कार्यशालाओं के नए उत्पादों के लिए आरडीएसओ अनुमोदन की प्रक्रिया में, सीसीए का अर्थ _______ है।
- A) Cumulative capacity analysis
- B) Capacity cum capability analysis
- C) Capacity cum capability assessment
- D) Calculation of capacity assessment
Correct Answer: Capacity cum capability assessment
Explanation: Explanation : In the process of RDSO (Research Designs and Standards Organisation) approval for new products, stands for . This assessment is conducted to ensure that the vendor/workshop has the necessary and to manufacture and supply products as per Indian Railways’ standards. Capacity cum Capability Assessment production capacity technical capability CCA
Q5. V-SAT network in Indian Railways is typically used for __________. ASTE 70% 2025 भारतीय रेलवे में वी-सैट नेटवर्क का उपयोग आमतौर पर __________ के लिए किया जाता है। ASTE 70% 2025
- A) accident site communication
- B) UTS/PRS
- C) FOIS
- D) All the options
Correct Answer: All the options
Explanation: Explanation : using Geostationary Satellite as repeater location. As satellite is being used as repeating stations, the data originating and terminating point can be anywhere on the earth. VSAT network in Indian Railways is typically used for UTS/PRS & FOIS connectivity and as Accident Site Communication for voice, data and video transmission. Railway is using them to provide connectivity between various Railway data networks and remote locations where the normal data connectivity is not available or provision of the same is not feasible. VSAT provides Point to Point or Point to Multi Point data connectivity
Q6. As per enlarged CUG scheme covering all serving employees, distribution among M/s. Reliance Jio and M/s.Bharati Airtel limited shall be __________. CBT ASTE 2025 सभी सेवारत कर्मचारियों को शामिल करने वाली विस्तारित सीएफयू योजना के अनुसार, रिलायंस जियो और भारती एयरटेल लिमिटेड के बीच वितरण __________ होगा। CBT ASTE 2025
- A) 60%-40%
- B) 50%-50%
- C) 70%-30%
- D) none of the options
Correct Answer: 60%-40%
Explanation: Explanation : Based on technical capability, network coverage, service support, and tender conditions, it was decided to split the provisioning as: Reduce dependency on landlines and BSNL services cover all serving employees The scheme aims to: (due to better data support and network penetration in many regions) 60% to Reliance Jio (where coverage and existing contracts exist). 40% to Bharti Airtel CUG SIMs are bundled with voice, SMS, and limited data. Improve internal communication low-cost mobile connectivity
Q7. In LTE, within a 20 MHz downlink spectrum allocation, instantaneous downlink peak data rate is ____. एलटीई में, 20 मेगाहर्ट्ज डाउनलिंक स्पेक्ट्रम आवंटन के भीतर, तात्कालिक डाउनलिंक पीक डेटा दर ____ होती है।
- A) 75 Mbps
- B) 100 Mbps
- C) 25 Mbps
- D) none of the options
Correct Answer: 100 Mbps
Explanation: Explanation : In technology: For of downlink spectrum: 20 MHz LTE (Long-Term Evolution) up to 100 Mbps MIMO (2x2) 64-QAM modulation ideal radio conditions
Q8. Double cutting arrangement is provided in the signaling circuit of vital relay, by this which of the followings is ensured? महत्वपूर्ण रिले के सिग्नलिंग सर्किट में डबल कटिंग व्यवस्था प्रदान की जाती है, इससे निम्नलिखित में से क्या सुनिश्चित होता है?
- A) the Signal Aspect Control is achieved.
- B) Single fault can not cause any unsafe condition in vital external signalling circuit.
- C) Signal ahead is not blank i.e. No Light.
- D) All of the above i.e. (1), (2) & (3) are true.
Correct Answer: Single fault can not cause any unsafe condition in vital external signalling circuit.
Explanation: Explanation : For purely internal circuits including vital circuits, double cutting or cross protection may not be provided, unless specifically required. All external circuits shall be suitably protected from cross connections and rendered immune to
Q9. The minimum tender notice period shall be reckoned from the date the tender is ___________. CBT ASTE 2025 निविदा जमा करने की न्यूनतम सूचना अवधि निविदा जमा करने की तिथि से गिनी जाएगी। सीबीटी एएसटीई 2025
- A) published on e-tendering website
- B) published in the newspaper
- C) placed on the notice board of the office of the Executive
- D) All the options
Correct Answer: published on e-tendering website
Explanation: Explanation : According to the and used by Indian Railways: “The minimum tender notice period shall be reckoned from the date on which the tender is published on the e-tendering website.” Standard Tender Document (STD) General Conditions of Contract (GCC)
Q10. In MACLS territory, if a signal is blank, i.e, not showing any aspect then__________. CBT ASTE 70% 2025 MACLS क्षेत्र में, यदि कोई सिग्नल खाली है, यानी कोई पहलू नहीं दिखा रहा है, तो __________। CBT ASTE 70% 2025
- A) Signal in rear of the defective signal shall display its most restrictive aspect
- B) Signal in rear of the defective signal shall display red
- C) Signal in rear of the defective signal shall be unaffected
- D) none of the options
Correct Answer: Signal in rear of the defective signal shall display its most restrictive aspect
Explanation: Explanation : i.e., blank If a signal is extinguished or fails to display any aspect (), it shall be treated as displaying the most restrictive aspect. The signal in rear shall also be controlled to display the most restrictive aspect.”
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