General Science Questions for Railway Exam 2018

General Science Questions for Railway Exam 2018
===================
 Q1. There are rings around which of the following planets? 
 निम्नलिखित में से किस ग्रहों के चारो ओर छल्ले हैं?     
(a) Uranus(अरुण ग्रह )
(b) Mars(मंगल ग्रह)
(c) Jupiter(बृहस्पति)
(d) Saturn(शनि ग्रह)

 Q2. What is the S.I. unit of magnetic flux density?
चुंबकीय फ्लक्स घनत्व की S.I इकाई क्या है?   
(a) Gauss(गॉस)
(b) Tesla(टेस्ला)
(c) Oersted(एस्टड)
(d) Weber(वेबर)

 Q3. What is the proper use of signal generator?   
संकेत जनरेटर का उचित उपयोग क्या है?
(a) Designing(डिज़ाइन बनाना)
(b) Testing(परिक्षण)
(c) Repairing(मरम्मत)
(d) All of the above(उपरोक्त सभी)

 Q4. Moisture can be removed from lubricating oil using?  
किसके द्वारा चिकनाई तेल से नमी को हटाया जा सकता है?  
(a) Tubular centrifugal(ट्यूबलर केन्द्रापसारक )
(b) Clarifier(विशुद्धक)
(c) Sparkler filter(स्पार्कलर फिल्टर)
(d) Vacuum leaf filter(वैक्यूम लीफ फिल्टर)

 Q5. Germanium possesses?   
जर्मेनियम में होता है?  
(a) 2 Valence electrons(2 अणु की संयोजन क्षमता)
(b) 3 Valence electrons(3 अणु की संयोजन क्षमता)
(c) 4 Valence electrons(4 अणु की संयोजन क्षमता)
(d) 5 Valence electrons(5 अणु की संयोजन क्षमता)

 Q6. Among the conventional machining process maximum specific energy is consumed in?
निम्नलिखित पारंपरिक मशीनिंग प्रक्रिया में सभी अधिक विशिष्ट ऊर्जा किसमे खर्च होती है?
(a) Drilling(ड्रिलिंग)
(b) Planning(ख़ाका बनाना)
(c) Grinding(पिसाई)
(d)Turning(टर्निंग)

 Q7. The gas used in welding and cutting of metals is?
वेल्डिंग और धातुओं काटने में इस्तेमाल गैस है?
(a) Ethene(इथीन )
(b) Ethyne(इथाइन)
(c) Propane(प्रोपेन )
(d) Ethane(इथेन)

 Q8. If steel is heated bright red hot and is then cooled slowly, the process is called?
यदि एक स्टील को लाल होने तक गर्म करके फिर उसको ठंडा करने की प्रक्रिया को क्या कहा जाता है?
(a) Annealing(एनीलिंग)
(b) Tempering(टेम्परिंग)
(c) Smelting(प्रगलन)
(d) Quenching(शमन)

 Q9. An alloy of copper and zinc is called as
तांबा और जस्ता का एक मिश्र धातु कहा जाता है
(a) Bronze(कांस्य)
(b) Gunmetal(गन मेटल)
(c) Stainless steel(स्टेनलेस स्टील)
(d) Brass(तांबा)

 Q10. Temporary hardness of water is due to the presence of?
 पानी की अस्थायी कठोरता किसके कारण होती है?
(a) Magnesium Sulphate(मैग्नीशियम सलफेट)
(b) Calcium hydroxide(कैल्शियम हाइड्रॉक्साइड)
(c) Calcium Sulphate(कैल्शियम सल्फेट)
(d) Calcium hydrogencarbonate(कैल्शियम हाइड्रोजन कार्बोनेट)

 ================
✅ Solutions

S1. Ans.(d)
S2. Ans.(b)
S3. Ans.(d)
S4. Ans.(a)
S5. Ans.(c)
S6. Ans.(c)
S7. Ans.(b)
S8. Ans.(a)
S9. Ans.(d)
S10. Ans.(d)


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