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 90,000 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 90,000 सीटों को वैध उम्मीदवारों द्वारा भरा जाएगा. आपके पास बहुत अच्छा अवसर है और आपको इसे एक बेहतर रणनीति से प्राप्त करना होगा.
Q1. The major food fuel during exercise of long duration is
लंबी अवधि के अभ्यास के दौरान प्रमुख खाद्य ईंधन है
(a)Fat/वसा
(b)Protein/ प्रोटीन
(c)Carbohydrate/ कार्बोहाइड्रेट
(d)None of these/ इनमें से कोई नहीं
Ans.(c)
Sol. The major food fuel during exercise of long duration is carbohydrates because it provides more energy after oxidation of one molecule of glucose than other substance.
Sol. The major food fuel during exercise of long duration is carbohydrates because it provides more energy after oxidation of one molecule of glucose than other substance.
Q2. 2, 4-D is :
2, 4- D है:
(a) An insecticide / कीटनाशक
(b) An explosive / एक विस्फोटक
(c) A fungicide / एक कवकनाशक
(d) A herbicide / एक जड़ी बूटी
Show Answer
Ans.(d)
Sol. 2, 4-Dichlorophenoxyacetic acid (usually referred to by its abbreviation, 2, 4-D) is a common systemic herbicide used in the control of broadleaf weeds. It is one of the most widely used herbicides in the world. 2, 4-D is synthetic auxin (plant hormone) and it is often used in laboratories for plant research and as a supplement in plant cell culture media such as MS medium.
Sol. 2, 4-Dichlorophenoxyacetic acid (usually referred to by its abbreviation, 2, 4-D) is a common systemic herbicide used in the control of broadleaf weeds. It is one of the most widely used herbicides in the world. 2, 4-D is synthetic auxin (plant hormone) and it is often used in laboratories for plant research and as a supplement in plant cell culture media such as MS medium.
Q3. Azolla is-
अज़ोला है-
(a) Aquatic Fern / एक्वाटिक फर्न
(b) Aquatic algae / एक्वाटिक शैवाल
(c) Aquatic bacteria / एक्वाटिक बैक्टीरिया
(d) None of these / इनमें से कोई नहीं
Show Answer
Ans.(a)
Sol. Azolla is an aquatic fern. It gives a good bio-fertilizer when mixed with blue-green algae.
Sol. Azolla is an aquatic fern. It gives a good bio-fertilizer when mixed with blue-green algae.
Q4. What is not found in the animal cell?
जन्तु कोशिका में क्या नहीं होता है?
(a) Cell wall of cellulose / सेलूलोज़ की कोशिका भित्ति
(b) Nucleus / केंद्रिका
(c) Mitochondria / माईटोकोंड्रीया
(d) None of these / इनमें से कोई नहीं
Show Answer
Ans.(a)
Sol. A plant cell is different from animal cell mainly on the basis of the cell wall. The outer shell in a plant cell (which is made from cellulose in green plants) is known as cell wall, which is not found in the animal cell. Except this, green plastids are also found in plant cells while not in animal cells.
Sol. A plant cell is different from animal cell mainly on the basis of the cell wall. The outer shell in a plant cell (which is made from cellulose in green plants) is known as cell wall, which is not found in the animal cell. Except this, green plastids are also found in plant cells while not in animal cells.
Q5. The cellular and molecular control of programmed cell death are known as:
कोशिकीय और आण्विक नियंत्रण के योजनाबध्द कोशिका विनाश किस रूप में जाने जाते है:
(a) Apoptosis / एपोप्टोसिस
(b) Ageing / एजिंग
(c) Degeneration/ डीजेनरेशन
(d) Necrosis / नेक्रोसिस
Show Answer
Ans.(a)
Sol. Apoptosis is the process of programmed cell death (PCD) that may occur in multicellular organisms. Apoptosis plays a crucial role in developing and maintaining the health of the body by eliminating old cells, unnecessary and unhealthy cells.
Sol. Apoptosis is the process of programmed cell death (PCD) that may occur in multicellular organisms. Apoptosis plays a crucial role in developing and maintaining the health of the body by eliminating old cells, unnecessary and unhealthy cells.
Q6. One term that generates the maximum number of ATP atoms in our system?
एक पद जो हमारी प्रणाली में अधिकतम एटीपी परमाणु उत्पन्न करता है?
(a) Decomposition of glucose / ग्लूकोज का विघटन
(b) Kreb’s cycle / क्रेब का चक्र
(c) Last respiratory series / अंतिम श्वसन श्रृंखला
(d) Water decomposition / जल अपघटन
Show Answer
Ans.(b)
Sol. Kreb’s cycle is a cycle of enzyme-catalyzed reactions in living cells that is the final series of reactions of aerobic metabolism of carbohydrates, proteins, and fatty acids. Due to this carbon dioxide is produced, oxygen is reduced and ATP is formed.
Sol. Kreb’s cycle is a cycle of enzyme-catalyzed reactions in living cells that is the final series of reactions of aerobic metabolism of carbohydrates, proteins, and fatty acids. Due to this carbon dioxide is produced, oxygen is reduced and ATP is formed.
In a eukaryotic cell, the citric acid cycle occurs in the matrix of the mitochondrion. This cycle was discovered by Hans Kerb’s in 1937.
एक स्वस्थ व्यक्ति का औसत दिल एक मिनट में कितनी बार धड़कता है-
(a) 86 times /86 बार
(b) 98 times /98 बार
(c) 72 times /72 बार
(d) 64 times /64 बार
Show Answer
Ans.(c)
Sol. Heart rate is the speed of the heartbeats, measured by the number of contractions of the heart typically beats per minute. Our heart beats about 72 times a minute under normal conditions. During sleep a slow heartbeat rates around 40-50 BPM is common. The cardiac cycle refers to a complete heart beat from its generation to the beginning of the next beat.
Sol. Heart rate is the speed of the heartbeats, measured by the number of contractions of the heart typically beats per minute. Our heart beats about 72 times a minute under normal conditions. During sleep a slow heartbeat rates around 40-50 BPM is common. The cardiac cycle refers to a complete heart beat from its generation to the beginning of the next beat.
Q8. Blood grouping was discovered by-
रक्त ग्रुपिंग की खोज किसके द्वारा की गई थी?
(a) Louis Pasteur /लुई पास्चर
(b) William Harvey /विलियम हार्वे
(c) Robert Koch /रॉबर्ट कोच
(d) Landsteiner / लैंडस्टीनर
Show Answer
Ans.(d)
Sol. The ABO blood group system is widely credited to have been discovered by the Austrian scientist Karl Landsteiner, who identified the O, A, and B blood types in 1900.
Sol. The ABO blood group system is widely credited to have been discovered by the Austrian scientist Karl Landsteiner, who identified the O, A, and B blood types in 1900.
Q9. Who propounded the theory of evolution?
विकास के सिद्धांत को किसने स्थापित किया?
(a) Spencer / स्पेंसर
(b) Darwin / डार्विन
(c) Wallace / वालेस
(d) Huxley / हक्सले
Show Answer
Ans.(b)
Sol. Charles Robert Darwin was an English geologist and best known for his contribution to evolutionary theory. Darwin published his theory of evolution in his book ‘On the Origin of Species” in 1859. Darwinian theory.
Sol. Charles Robert Darwin was an English geologist and best known for his contribution to evolutionary theory. Darwin published his theory of evolution in his book ‘On the Origin of Species” in 1859. Darwinian theory.
Q10. Plants growing on rocks are called:
चट्टानों पर उगने वाले पौधों को क्या कहा जाता है:
(a) Epiphytes / एपीफाईट
(b) Halophytes / हेलोफाईट
(c) Xerophytes / ज़ेरोफाईट
(d) Lithophytes / लिथोफाईट
Show Answer
Ans.(d)
Sol. Lithophytes are plants that grow in or on rocks. Those that grow on rocks are also known as epipetric or epilithic plants. Lithophytes feed off nutrients from rain water and nearby decaying plants, including their own dead tissue.
Sol. Lithophytes are plants that grow in or on rocks. Those that grow on rocks are also known as epipetric or epilithic plants. Lithophytes feed off nutrients from rain water and nearby decaying plants, including their own dead tissue.
Q11. We get Morphine from-
_______से हम मॉर्फिन प्राप्त करते हैं.
(a) Flower/ फूल
(b) Leave / पत्ती
(c) Fruit / फल
(d) Stem /तना
Show Answer
Ans.(c)
Sol. Morphine is acquired from the unripe fruits of poppy straw. Poppy plant is an angiosperm plant from which opium and heroin are also acquired. The word morphine originates from Morpheus and it is used as a painkiller medicine and sleeping pills. Morphine directly affects central nervous system.
Sol. Morphine is acquired from the unripe fruits of poppy straw. Poppy plant is an angiosperm plant from which opium and heroin are also acquired. The word morphine originates from Morpheus and it is used as a painkiller medicine and sleeping pills. Morphine directly affects central nervous system.
Q12. Which compound present in D.N.A. does not form amino acid?
डीएनए में कौन सा यौगिक मौजूद है जो अमिनो अम्ल नहीं बनाता है?
(a) Adenine / एडिनिन
(b) Tyrosine / टायरोसिन
(c) Guanine / गुआनिन
(d) Cytosine / साइटोसिन
Show Answer
Ans.(b)
Sol. Tyrosine or 4-hydroxphenylalanine is one of the 22 amino acids that are used by cells to synthesize proteins. Its codons are UAC and UAU. It is a non-essential amino acid with a polar side group. It was first discovered in 1846 by German chemist Justus von Liebig in the protein casein from cheese. It is called tyrosyl when referred to as a functional group or side chain.
Sol. Tyrosine or 4-hydroxphenylalanine is one of the 22 amino acids that are used by cells to synthesize proteins. Its codons are UAC and UAU. It is a non-essential amino acid with a polar side group. It was first discovered in 1846 by German chemist Justus von Liebig in the protein casein from cheese. It is called tyrosyl when referred to as a functional group or side chain.
Q13. Who delivered the principle of ‘jumping gene’?
‘जम्पिंग जीन' के सिद्धांत को किसने दिया है?
(a) Gregor Johann Mendel / ग्रेगोर जोहान मेंडेल
(b) Tomas Hunt Morgan / टॉमस हंट मॉर्गन
(c) Barbara Mc Clintock / बारबरा मैक क्लिंटॉक
(d) Watson and Crick / वाटसन और क्रिक
‘जम्पिंग जीन' के सिद्धांत को किसने दिया है?
(a) Gregor Johann Mendel / ग्रेगोर जोहान मेंडेल
(b) Tomas Hunt Morgan / टॉमस हंट मॉर्गन
(c) Barbara Mc Clintock / बारबरा मैक क्लिंटॉक
(d) Watson and Crick / वाटसन और क्रिक
Show Answer
Ans.(c)
Sol. Barbara MC Clintock was the more profound of jumping genes principle. She was awarded Nobel Prize in 1983 for this special research in medical science while studying of heredity in the corn plant.
Sol. Barbara MC Clintock was the more profound of jumping genes principle. She was awarded Nobel Prize in 1983 for this special research in medical science while studying of heredity in the corn plant.
Q14. Blue-green algae is used to supply nitrogen to-
ब्लू-हरे शैवाल का उपयोग नाइट्रोजन को आपूर्ति करने के लिए किया जाता है-
(a) Bajra / बाजरा
(b) Maize / मक्का
(c) Paddy / धान
(d) Wheat / गेहूं
Show Answer
Ans.(c)
Sol. Cyanobacteria or blue-green algae is an example of a biofertilizer, a type of organic fertilizer which contains living organisms naturally occurring inputs like solar energy, nitrogen, and water to ensure soil fertility and plant growth. Blue-green algae are mainly used as biofertilizer in the crop paddy.
Sol. Cyanobacteria or blue-green algae is an example of a biofertilizer, a type of organic fertilizer which contains living organisms naturally occurring inputs like solar energy, nitrogen, and water to ensure soil fertility and plant growth. Blue-green algae are mainly used as biofertilizer in the crop paddy.
Q15. How many bones are there in human skeleton?
मानव कंकाल में कितनी हड्डियां हैं?
(a) 280
(b) 200
(c) 220
(d) 206
Show Answer
Ans.(d)
Sol. The skeleton of an adult human body consists of 206 bones. It is composed of 213 bones in a child, which decreases to 206 bones by adulthood after some bones have fused together. Together these bones form the axial skeleton and the appendicular skeleton.
Sol. The skeleton of an adult human body consists of 206 bones. It is composed of 213 bones in a child, which decreases to 206 bones by adulthood after some bones have fused together. Together these bones form the axial skeleton and the appendicular skeleton.
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