Railway Board offers opulent and revered job posts to its aspirants. And it is not every year that we get the notification from Railway offering a good number of vacant seats to the multitude aspirants. But the current year 2018 brought a pleasant surprise with almost 1,20,000 seats to be filled by the valid candidates. Opportunity is here but you have to welcome it with a provident strategy.
रेलवे बोर्ड अपने उम्मीदवारों के लिए भव्य और प्रतिष्ठित कार्य पदों की पेशकश करता है. और हर साल ऐसा नहीं होता है कि हमें रेलवे की ओर से अधिसूचना मिलती है. लेकिन वर्तमान वर्ष 2018 आपके लिए बहुत सुखद वर्ष है क्योंकि इसमें लगभग 1,20,000 सीटों को वैध उम्मीदवारों द्वारा भरा जाएगा. आपके पास बहुत अच्छा अवसर है और आपको इसे एक बेहतर रणनीति से प्राप्त करना होगा.
Q1. Plants adapted to dry climate are known as
शुष्क जलवायु के लिए अनुकूलित पौधों को किस रूप में जाना जाता है?
(a) Epiphyte/ अधिपादप
(b) Xerophyte/ मरूद्भिद
(c) Hydrophytes/ जलीय पादप
(d) Mean plants/ मीन प्लांट
Ans.(b)
Sol. A xerophyte is a species of plant that has adapted to survive in a dry environment. Opuntia, madar, Nerium are the major plants of this type.
Sol. A xerophyte is a species of plant that has adapted to survive in a dry environment. Opuntia, madar, Nerium are the major plants of this type.
Q2. Redness in apple is due to
सेब में लाली किस कारण होती है?
(a) Anthocyanin/ एंथोसायनिन
(b) Lycopene/ लाइकोपीन
(c) Carotene/ कैरोटीन
(d) Xanthophyll/ जेंथोफिल
Show Answer
Ans.(a)
Sol. Anthocyanins are the pigment compounds and responsible for red, purple and blue colours in many fruits and vegetables. Lycopene pigment is in red colour like tomato, carotene in carrot and xanthophyll pigment present in beetroot.
Sol. Anthocyanins are the pigment compounds and responsible for red, purple and blue colours in many fruits and vegetables. Lycopene pigment is in red colour like tomato, carotene in carrot and xanthophyll pigment present in beetroot.
Q3. Red colour in tomato is due to
टमाटर का रंग लाल किस कारण होता है?
(a) Capsaicin/ कैप्सैसिन
(b) Carotenoid/ कैरोटीनॉयड
(c) Xanthophyll/ जेंथोफिल
(d) None of these/ इनमें से कोई नहीं
Show Answer
Ans.(b)
Sol. carotenoid is responsible for the redness of tomato.
Sol. carotenoid is responsible for the redness of tomato.
Q4. Plants which grow on saline soils are
लवणीय मृदा में उगने वाले पौधे हैं:
(a) Xerophytes/ मरूद्भिद
(b) Hydrophytes/ जलीय पादप
(c) Halophytes/ लवणमृदोद्भिद
(d) Succulents/ गूदेदार पादप
Show Answer
Ans.(c)
Sol. Hydrophytes or aquatic plants are plants that have adapted to live in an aquatic environment (saltwater or freshwater). They are also referred as macrophytes. These plants require special adaptations for living submerged in water or at the water’s surface. Plants growing on saline soils or water are called halophytes.
Sol. Hydrophytes or aquatic plants are plants that have adapted to live in an aquatic environment (saltwater or freshwater). They are also referred as macrophytes. These plants require special adaptations for living submerged in water or at the water’s surface. Plants growing on saline soils or water are called halophytes.
Q5. The dialyzer is used for the work of-
डायलज़र का उपयोग किस काम के लिए किया जाता है?
(a) Heart/ हृदय
(b) Kidney/ गुर्दा
(c) Liver / यकृत
(d) Lungs / फेफड़े
Show Answer
Ans.(b)
Sol. The treatment option for kidney failure; peritoneal dialysis (PD), hemodialysis and kidney transplant. A dialyzer is an artificial kidney designed to provide controllable transfer of solutes and water across a semipermeable membrane separating flowing blood and dialysate streams.
Sol. The treatment option for kidney failure; peritoneal dialysis (PD), hemodialysis and kidney transplant. A dialyzer is an artificial kidney designed to provide controllable transfer of solutes and water across a semipermeable membrane separating flowing blood and dialysate streams.
Q6. What amongst the following is responsible for the formation of stone in the human kidney?
मानव गुर्दे में पथरी के निर्माण के लिए निम्न में से कौन उत्तरदायी है?
(a) Calcium acetate / कैल्शियम एसीटेट
(b) Calcium oxalate / कैल्शियम ऑक्सालेट
(c) Sodium acetate / सोडियम एसीटेट
(d) Sodium benzoate / सोडियम बेंजोएट
Show Answer
Ans.(b)
Sol. Calcium Oxalate is a chemical compound that forms envelope shaped crystals, known in plants as raphides. A major constituent of human kidney stones is calcium oxalate.
Sol. Calcium Oxalate is a chemical compound that forms envelope shaped crystals, known in plants as raphides. A major constituent of human kidney stones is calcium oxalate.
Q7. What is a mushroom?
कुक्कुरमुत्ता क्या है?
(a) Fungi/ कवक
(b) Plant/ पौधा
(c) Animal/ पशु
(d) Bacteria / जीवाणु
कुक्कुरमुत्ता क्या है?
(a) Fungi/ कवक
(b) Plant/ पौधा
(c) Animal/ पशु
(d) Bacteria / जीवाणु
Show Answer
Ans.(a)
Sol. Mushroom is a fungus which is used as a vegetable for food.
Sol. Mushroom is a fungus which is used as a vegetable for food.
Q8. Which of the following are required for the formation of bones and teeth?
हड्डियों और दांतों के निर्माण के लिए निम्न में से क्या आवश्यक है?
(a) Sodium and Potassium/ सोडियम और पोटैशियम
(b) Iron and Calcium / लौह तत्व और कैल्शियम
(c) Sodium and Calcium / सोडियम और कैल्शियम
(d) Calcium and Phosphorus / कैल्शियम और फॉस्फोरस
हड्डियों और दांतों के निर्माण के लिए निम्न में से क्या आवश्यक है?
(a) Sodium and Potassium/ सोडियम और पोटैशियम
(b) Iron and Calcium / लौह तत्व और कैल्शियम
(c) Sodium and Calcium / सोडियम और कैल्शियम
(d) Calcium and Phosphorus / कैल्शियम और फॉस्फोरस
Show Answer
Ans.(d)
Sol. Teeth and bones both are hard, white and heavy. Teeth are composed of calcium, phosphorous and other minerals. Bones contain calcium, phosphorus, sodium and other minerals, but mostly consist of the protein collagen.
Sol. Teeth and bones both are hard, white and heavy. Teeth are composed of calcium, phosphorous and other minerals. Bones contain calcium, phosphorus, sodium and other minerals, but mostly consist of the protein collagen.
Q9. Heart beats are caused by an electrical current that originates in the:
हृदय की धड़कने एक विद्युतीय प्रवाह के कारण होती है, यह कहाँ उत्पन्न उत्पन्न होती है?
(a) Brain/ मस्तिष्क
(b) Blood/ रुधिर
(c) Heart/ हृदय
(d) Spinal cord/ मेरुरज्जू
हृदय की धड़कने एक विद्युतीय प्रवाह के कारण होती है, यह कहाँ उत्पन्न उत्पन्न होती है?
(a) Brain/ मस्तिष्क
(b) Blood/ रुधिर
(c) Heart/ हृदय
(d) Spinal cord/ मेरुरज्जू
Show Answer
Ans.(c)
Sol. An electrical impulse generator, called the “sinus node”, sends signals from the right atrium to trigger the heart beat. Like a natural pacemaker, the electrical current follows a web of pathways through the heart, causing the chambers to squeeze and relax in a steady, rhythmic sequence that draws blood into the heart and pulse it out.
Sol. An electrical impulse generator, called the “sinus node”, sends signals from the right atrium to trigger the heart beat. Like a natural pacemaker, the electrical current follows a web of pathways through the heart, causing the chambers to squeeze and relax in a steady, rhythmic sequence that draws blood into the heart and pulse it out.
Q10. Which of the following is not the work of roots?
निम्न में से जड़ों का कार्य क्या नहीं है?
(a) Photosynthesis/ प्रकाश- संश्लेषण
(b) water absorption/ जल अवशोषण
(c) Absorption nutrients/ पोषक-तत्व अवशोषण
(d) To help the plants/ पौधों की सहायता के लिए
निम्न में से जड़ों का कार्य क्या नहीं है?
(a) Photosynthesis/ प्रकाश- संश्लेषण
(b) water absorption/ जल अवशोषण
(c) Absorption nutrients/ पोषक-तत्व अवशोषण
(d) To help the plants/ पौधों की सहायता के लिए
Show Answer
Ans.(a)
Sol. Photosynthesis takes place in leaves which prepare food for the plants by absorbing light, CO_2 and water. Generally, root cells do not contain chloroplasts; so there is no chance of photosynthesis.
Sol. Photosynthesis takes place in leaves which prepare food for the plants by absorbing light, CO_2 and water. Generally, root cells do not contain chloroplasts; so there is no chance of photosynthesis.
Q11. Which of the following has the maximum efficiency to convert solar energy into chemical energy?
निम्न में से सौर ऊर्जा को रासायनिक ऊर्जा में परिवर्तित करने की अधिकतम क्षमता किसमें है?
(a) Chlorella/ क्लोरेल्ला
(b) Tiger / टाइगर
(c) Earthworm/ केंचुआ
(d) Cuscutta/ अमरबेल
निम्न में से सौर ऊर्जा को रासायनिक ऊर्जा में परिवर्तित करने की अधिकतम क्षमता किसमें है?
(a) Chlorella/ क्लोरेल्ला
(b) Tiger / टाइगर
(c) Earthworm/ केंचुआ
(d) Cuscutta/ अमरबेल
Show Answer
Ans.(a)
Sol. In the process of photosynthesis, solar energy changes into chemical energy. Chlorella is a single-called green algae belonging to the class of Chlorophyceae. Chlorella is believed to be capable in serving as a potential food and energy source.
Sol. In the process of photosynthesis, solar energy changes into chemical energy. Chlorella is a single-called green algae belonging to the class of Chlorophyceae. Chlorella is believed to be capable in serving as a potential food and energy source.
Q12. The disease ‘Tetanus’ is also known as
रोग “टिटनेस” को किस नाम से भी जाना जाता है?
(a) Gangrene/ अवसाद
(b) Shingles/ चर्मरोग
(c) Lock jaw/ जलबंधक
(d) Whooping cough/ कुक्कुर खांसी
रोग “टिटनेस” को किस नाम से भी जाना जाता है?
(a) Gangrene/ अवसाद
(b) Shingles/ चर्मरोग
(c) Lock jaw/ जलबंधक
(d) Whooping cough/ कुक्कुर खांसी
Show Answer
Ans.(c)
Sol. Tetanus is a bacterial disease caused by the bacteria Clostridium tetani. When the tetanus bacteria invade the body through a wound, they produce a toxin or poison, that causes muscles to become tight, which is very painful. Tetanus mainly affects the neck and abdomen. It is also known as “lock jaw” because it often causes a person’s neck and jaw muscles to lock, making it hard to open the mouth or swallow.
Sol. Tetanus is a bacterial disease caused by the bacteria Clostridium tetani. When the tetanus bacteria invade the body through a wound, they produce a toxin or poison, that causes muscles to become tight, which is very painful. Tetanus mainly affects the neck and abdomen. It is also known as “lock jaw” because it often causes a person’s neck and jaw muscles to lock, making it hard to open the mouth or swallow.
Q13. The diseases caused by nematodes
सूत्रकृमि द्वारा उत्पन्न रोग है?
(a) Filaria/ फ़ाइलेरिया
(b) Fluorosis/ फ्लोरोसिस
(c) Encephalitis/ मस्तिष्ककोप
(d) Leprosy/ कुष्ठरोग
सूत्रकृमि द्वारा उत्पन्न रोग है?
(a) Filaria/ फ़ाइलेरिया
(b) Fluorosis/ फ्लोरोसिस
(c) Encephalitis/ मस्तिष्ककोप
(d) Leprosy/ कुष्ठरोग
Show Answer
Ans.(a)
Sol. Filariasis is a parasitic infection caused by thread-like nematodes (filariae) that belong to the roundworm superfamily Filarioidea. The disease spreads from person to person by female Culex mosquito. Edema is one of the most common symptoms of filariasis and can lead to elephantiasis, which is characterized by thickened skin and massive swelling.
Sol. Filariasis is a parasitic infection caused by thread-like nematodes (filariae) that belong to the roundworm superfamily Filarioidea. The disease spreads from person to person by female Culex mosquito. Edema is one of the most common symptoms of filariasis and can lead to elephantiasis, which is characterized by thickened skin and massive swelling.
Q14. Fish generally breathe through
सामान्यत: मछली किसकी सहायता से सांस लेती है?
(a) Skin/ त्वचा
(b) Nose/ नाक
(c) Gills/ गलफड़े
(d) Fins / मीनपक्ष
सामान्यत: मछली किसकी सहायता से सांस लेती है?
(a) Skin/ त्वचा
(b) Nose/ नाक
(c) Gills/ गलफड़े
(d) Fins / मीनपक्ष
Show Answer
Ans.(c)
Sol. Fish use gills to breath and gills can only bring in oxygen when moist. Out of water, a fish’s gills dries out and then the fish dies.
Sol. Fish use gills to breath and gills can only bring in oxygen when moist. Out of water, a fish’s gills dries out and then the fish dies.
Q15. The sugar present in DNA is:
डीएनए में उपस्थित शर्करा को क्या कहते है?
(a) Glucose/ ग्लूकोज
(b) Fructose / फ्रुक्टोज
(c) Deoxyribose /डिओक्सीराइबोज
(d) Ribose/ राइबोज़
डीएनए में उपस्थित शर्करा को क्या कहते है?
(a) Glucose/ ग्लूकोज
(b) Fructose / फ्रुक्टोज
(c) Deoxyribose /डिओक्सीराइबोज
(d) Ribose/ राइबोज़
Show Answer
Ans.(c)
Sol. The deoxyribose is sugar found in DNA. It is a variant of five carbon sugar called ribose. The DNA is an informational molecule found mainly in the nucleus of the cell.
Sol. The deoxyribose is sugar found in DNA. It is a variant of five carbon sugar called ribose. The DNA is an informational molecule found mainly in the nucleus of the cell.
