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प्र: Where does translation occur? 1622 0

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    Nucleus
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    Ribosomes
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    Cytoplasm
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    mitochondrion
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उत्तर : 3. "Cytoplasm"
व्याख्या :

Answer: C) Cytoplasm Explanation: Right after that, the mRNA enters the cytoplasm through nuclear pores. There, it could be translated into proteins by ribosomes. This process is called translation.   Translation occurs in the cytoplasm whereas transcription occurs in the nucleus.

प्र: Where are Maglev trains used? 1622 0

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    London
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    Russia
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    Germany
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    Japan
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उत्तर : 4. "Japan"
व्याख्या :

Answer: D) Japan Explanation: Maglev trains are used in Japan, South Korea and China only. Maglev derived from magnetic levitation using the principle of magnetic repulsion is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track as in levitation then another set to move the 'floating train' ahead at great speed taking advantage of no friction. Maglev trains are therefore quieter and smoother than conventional trains, and have the potential for much higher speeds Despite over a century of research and development, maglev transport systems are in operation in just three countries Japan, South Korea and China.   Hence Maglev -- Magnetic-levitation.

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उत्तर : 4. "81.5"
व्याख्या :

Answer: D) 81.5 Explanation: Let the number of students in classes A, B and C be P, Q and R respectively.Then, total score of A = 83P, total score of B = 76Q, total score of C = 85R.Also given that,(83P + 76Q) / (P + Q) = 79=>4P = 3Q.(76Q + 85R)/(Q + R) = 81=>4R = 5Q,=>Q = 4P/3 and R = 5P/3Therefore, average score of A, B, C = ( 83P + 76Q + 85R ) / (P + Q + R) = 978/12 = 81.5

प्र: Animal migration on savannas is often governed by 1621 0

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    Rainfall
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    Distance
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    Reproduction
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    Fire
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उत्तर : 1. "Rainfall"
व्याख्या :

Answer: A) Rainfall Explanation: Savannas are home to a wide diversity of animals. Many animals of the savanna migrate throughout the year, searching for food and water. Many of the droughts are seasonal and hit one area before another, so animals are constantly following the rains.   Hence, Rain fall is what often governs animal migration on savannas.

प्र: Atmospheric pressure exerted on earth is due to 1621 0

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    gravitational pull
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    rotation of earth
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    revolution of earth
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    uneven heating of earth
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उत्तर : 1. "gravitational pull"
व्याख्या :

Answer: A) gravitational pull Explanation: The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi.   That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds.

प्र: Which of the following atoms has the largest radius? 1620 0

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    Br
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    K
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    Na
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    Cl
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उत्तर : 2. "K"
व्याख्या :

Answer: B) K Explanation: For neutral atoms, the periodic trends in atomic size can be described like this Atomic size decreases when going from left to right across a period,Atomic size increases when going from top to bottom down a group.   Let's use these trends to try and figure out which atom would have the largest radius. If you look at elements that are located in the same group, potassium will have a larger atomic radius when compared with sodium. Likewise, bromine will have a larger atomic radius when compared with chlorine. Now focus on potassium and bromine. Since potassium is located at the start of period 3, and bromine at the end of the same period, potassium will have a larger atomic radius than bromine, and thus the largest atomic radius of the four given atoms.

प्र: Which of the following chemical compounds has the highest boiling point? 1620 0

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    Dimethyl ether (CH3OCH3)
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    Methanol (CH3OH)
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    Methane (CH4)
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    None
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उत्तर : 2. "Methanol (CH3OH)"
व्याख्या :

Answer: B) Methanol (CH3OH) Explanation: Chemical Compounds with stronger intermolecular forces have higher boiling points.   The order of strengths of intermolecular forces is:  London dispersion < dipole-dipole < H-bonding   Methane (CH4) — London dispersion forces Dimethyl ether (CH3OCH3) — dipole-dipole attractions Methanol (CH3OH) — hydrogen bonding Therefore, Methanol - CH3OH with H-Bonding have highest Boiling Point among the given chemical compounds.

प्र: Which of the following is / are fund managers for National Pension System (NPS) in 2017 ? 1618 0

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    Axis provident fund
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    Yes bank pension fund
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    ICICI prudential pension
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    Punjab National provident fund
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उत्तर : 3. "ICICI prudential pension"
व्याख्या :

Answer: C) ICICI prudential pension Explanation: At present in 2017, there are only seven NPS fund managers viz. HDFC Pension Fund, ICICI Prudential Pension, Kotak Pension Fund, LIC Pension Fund,  Reliance Capital Pension, SBI Pension Fund and UTI Retirement Solutions.

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