Knowledge Booster: S_T_Signal Edition (18 Apr 2026)
Welcome to today's S_T_Signal Knowledge Booster! We've handpicked 10 essential questions from our database to help you sharpen your skills. Dive in and test your knowledge!
Q1. As per GCC, in the case of a works contract, quantities operated more that 125% but below 140% will be paid at the rate of जीसीसी के अनुसार, किसी कार्य अनुबंध के मामले में, 125% से अधिक लेकिन 140% से कम संचालित मात्राओं के लिए भुगतान की दर पर किया जाएगा।
- A) 98% of accepted rate
- B) 96% of the accepted rate
- C) 94% of the accepted rate
- D) 104% of the accepted rate
Correct Answer: 98% of accepted rate
Explanation: Explanation : 70% ASTE 2024 (i) Quantities operated in excess of 125% but upto 140% of the agreement quantity of the concerned item, shall be paid at 98% of the rate awarded for that item in that particular tender:
Q2. As per the concept of Lightning protection zones for lightning protection, LPZ OA means बिजली से सुरक्षा के लिए बनाए गए लाइटनिंग प्रोटेक्शन ज़ोन की अवधारणा के अनुसार, LPZ OA का अर्थ है
- A) Internal having possibility of indirect strike
- B) External having a possibility of Direct strike
- C) Both external & internal
- D) None of these
Correct Answer: External having a possibility of Direct strike
Explanation: Explanation : . The internal systems may be subjected to full lightning surge current.
Q3. Force Majeure Clause provided in Stores and Works contracts, in certain situations and circumstances beyond the control of both the parties, described as 'Acts of God', allows parties to स्टोर और निर्माण अनुबंधों में दिए गए अप्रत्याशित घटना खंड के तहत, दोनों पक्षों के नियंत्रण से परे कुछ स्थितियों और परिस्थितियों में, जिन्हें 'दैवीय आपदा' कहा जाता है, पक्षों को निम्नलिखित अधिकार प्राप्त होते हैं:
- A) Defer performance of their contractual obligations
- B) End the contract without financial repercussions on either side
- C) Both the options given are correct
- D) Neither of the options given are correct
Correct Answer: Both the options given are correct
Explanation: Explanation : 70% ASTE 2024
Q4. In initial charging terminal voltage of cell is set to volt/cell प्रारंभिक चार्जिंग के दौरान सेल का टर्मिनल वोल्टेज वोल्ट/सेल पर सेट किया जाता है।
- A) 2.25 V
- B) 2.3V
- C) 2.4V
- D) 2.7V
Correct Answer: 2.7V
Explanation: Explanation : 2.7 initial charging
Q5. For El installation, clean and dirty wiring shall be clearly segregated and routed in different enclosures/ ladders. What shall be the minimum distance maintained between clean and dirty wiring? विद्युत विद्युत (EL) इंस्टॉलेशन के लिए, साफ और गंदे तारों को स्पष्ट रूप से अलग किया जाना चाहिए और उन्हें अलग-अलग एनक्लोजर/सीढ़ी में लगाया जाना चाहिए। साफ और गंदे तारों के बीच न्यूनतम दूरी कितनी होनी चाहिए?
- A) 50 mm
- B) 150 mm
- C) 300 mm
- D) 500 mm
Correct Answer: 150 mm
Explanation: Explanation : Clean and dirty wiring shall be clearly segregated and routed in different enclosures/ladders, and where this is not feasible, a minimum distance of 150mm between clean and dirty wiring shall be maintained.If clean and dirty wiring need to cross at any place, then wiring should be arranged at perpendicular to each other.All equipment in Electronic Equipment Room shall derive power from regulated and protected power lines (clean), but not from electrical service lines (dirty) used for room lighting airconditioning or fans.
Q6. Insulation tester used for insulation testing of signalling cables shall be? िसगनिलग कबलो क इ लशन टस्टग क िलए उपयोग िकए जान वाल इ लशन टस्टर ____________ होगा। सिग्नलिंग केबलों के इन्सुलेशन परीक्षण के लिए इन्सुलेशन परीक्षक का उपयोग किया जाएगा? इस उद्देश्य के लिए उपयोग किया जाने वाला एक लशन टेस्ट ____________ होगा।
- A) 500 V Meggar 500 वी मगर
- B) 100 V Meggar 100 वी मगर
- C) 1000V Meggar 1000 वी मगर
- D) Earth leakage detector एथ लीकज िडटक्टर
Correct Answer: 500 V Meggar 500 वी मगर
Explanation: Explanation : CBT 70% ASTE 2025
Q7. The station kavach transmits to the loco the information covering____________. ASTE 70% 2025. स्टेशन कवच लोको को ____________ से संबंधित जानकारी प्रसारित करता है। ASTE 70% 2025.
- A) movement authortiy
- B) sectional speed and gradients
- C) time stamp
- D) All the options
Correct Answer: All the options
Explanation: Explanation :
Q8. Maximum permissible charging current for 200 AH battery is 200 AH बैटरी के लिए अधिकतम अनुमेय चार्जिंग करंट है
- A) 10A
- B) 20A
- C) 2A
- D) No maximum
Correct Answer: 20A
Explanation: Explanation : C/10
Q9. Which of the following statement is not true with regard to Calling‐On Signal? कॉलिंग-ऑन सिग्नल के संबंध में निम्नलिखित में से कौन सा कथन सत्य नहीं है?
- A) It is a Subsidiary Signal
- B) It can be provided below any Stop Signal except the last Stop Signal
- C) It is provided with a marker of a white enamelled disc with letter 'C' in black color
- D) Its Clearance will not require closing and locking of manned level crossing gates in the route
Correct Answer: Its Clearance will not require closing and locking of manned level crossing gates in the route
Explanation: Explanation : For clling on signal overlap is not required
Q10. Automatic signalling shall not be provided on sections with continuous falling gradients steeper than______. ASTE 70% 2025. ______ से अधिक तीव्र निरंतर ढलान वाले खंडों पर स्वचालित सिग्नलिंग प्रदान नहीं की जाएगी। ASTE 70% 2025.
- A) 1 in 100
- B) 1 in 80
- C) 1 in 80 unless the brake power of the trains on the section is adequate to enable the trains being stopped at the signal 80
- D) none of the options
Correct Answer: 1 in 80 unless the brake power of the trains on the section is adequate to enable the trains being stopped at the signal 80
Explanation: Explanation : section is adequate to enable the trains being stopped at IB Signal. other subject to other considerations and headway required. It shall not be
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