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Railway Science Practice Set 3 – 15 Bilingual Questions with Detailed Explanations

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Sample Questions from Railway Science Practice Set 3 – 15 Bilingual Questions with Detailed Explanations

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Q1. A person standing in a moving bus falls backward when the bus suddenly starts. Which property is responsible for this phenomenon?

चलती बस में खड़ा व्यक्ति बस के अचानक चलने पर पीछे की ओर गिरता है। इस घटना के लिए कौन-सा गुण उत्तरदायी है?

A. Inertia of rest
विराम का जड़त्व
B. Inertia of motion
गति का जड़त्व
C. Inertia of direction
दिशा का जड़त्व
D. Gravitational inertia
गुरुत्वीय जड़त्व

Q2. Which acid is primarily present in the gastric juice of the human stomach?

मानव पेट के गैस्ट्रिक रस में मुख्य रूप से कौन-सा अम्ल पाया जाता है?

A. Sulphuric acid
सल्फ्यूरिक अम्ल
B. Hydrochloric acid
हाइड्रोक्लोरिक अम्ल
C. Nitric acid
नाइट्रिक अम्ल
D. Acetic acid
एसीटिक अम्ल

Q3. Why does a pressure cooker cook food faster than an ordinary open vessel?

प्रेशर कुकर सामान्य खुले बर्तन की तुलना में भोजन को जल्दी क्यों पकाता है?

A. It decreases the boiling point of water
यह जल का क्वथनांक कम कर देता है
B. It increases the boiling point of water by increasing pressure
यह दाब बढ़ाकर जल का क्वथनांक बढ़ा देता है
C. It decreases the specific heat of water
यह जल की विशिष्ट ऊष्मा कम कर देता है
D. It prevents water from absorbing heat
यह जल को ऊष्मा अवशोषित करने से रोकता है

Q4. Which cells in human blood are mainly responsible for transporting oxygen?

मानव रक्त में कौन-सी कोशिकाएँ मुख्य रूप से ऑक्सीजन के परिवहन के लिए उत्तरदायी हैं?

A. Platelets
प्लेटलेट्स
B. Red blood cells
लाल रक्त कोशिकाएँ
C. Neutrophils
न्यूट्रोफिल
D. Lymphocytes
लिम्फोसाइट्स

Q5. Which device converts electrical energy into mechanical energy?

कौन-सा उपकरण विद्युत ऊर्जा को यांत्रिक ऊर्जा में परिवर्तित करता है?

A. Electric generator
विद्युत जनित्र
B. Electric motor
विद्युत मोटर
C. Transformer
ट्रांसफॉर्मर
D. Electric cell
विद्युत सेल

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