Botany

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Heterocyst is found in?

Bacteria
Cyanobacteria
Virus
Mycoplasma


Correct Answer :Cyanobacteria

Viruses are?/ विषाणु क्या स्त्रोत है?

Parasite/ परजीवी
Saprophyte/मृतोपजीवी
Symbiont/ सह जीवी
Free living/ स्वंतत्र जीवन


Correct Answer :Parasite/परजीवी

Black rust of wheat is caused by?

Puccinia gramin’s tritici
Ustilago tritici
Alternaria
All of these


Correct Answer :Puccinia gramin’s tritici

Bordeaux mixture is a common? / बोड मिश्रण है?

Herbicide/ शाकनाशी
Insecticide/ कीटनाशी
Fungicide/ कवक नाशी
All of these/ उपर्युक्त सभी


Correct Answer :Fungicide/ कवक नाशी

Study of algae is known as? /शेवाल का अध्ययन  कहलाता है?

Mycology/ माइकोलॉजी
Phycology/ फाइकोलॉजी
Virology/ वाइरोलॉजी
Bryology/ ब्रायोलॉजी


Correct Answer :Phycology/ फाइकोलॉजी

Parallel venation is a characteristic of? / समानांतर शिरा विन्यास लक्षण है?

Pea/ मटर
Banyan/ बरगद
Grasses/ घास
Shoe flower/ गुलहड़


Correct Answer :Grasses/ घास

Radial vascular bundles is the characteristic of?/ अरीय संवहन पूल लक्षण है?

Root/ जड़
Stem/ तना
Leaf/ पत्ती
None of these /इनमे से कोई नहीं 


Correct Answer :Root/ जड़

True nucleus is absent in? /  सत्य केन्द्रक किसमें अनुपस्थित होता है?

Green algae/ हरित शैवाल में
Fungi, कवक में
Lichen/ लाइकेन में
Bacteria/ जीवाणु में


Correct Answer :Bacteria/ जीवाणु में

Which organelle takes part in photosynthesis?/  प्रकाश संश्लेषण में कौन सा कोशिकांग भाग लेता है?

Leucoplast / ल्यूकोप्लास्ट
Chromoplast /  क्रोमाप्लास्ट
Chloroplast / क्लोरोप्लास्ट
Mitochondria/ माइटोकॉन्ड्रिया


Correct Answer :Chloroplast / क्लोरोप्लास्ट

Cell membrane is? / कोशिका झिल्ली होती है?

Semipermeable/ वरणाक्रमक पारगम्य
Permeable/ पारगम्य
Impermeable/ अपारगम्य
All of these/ उपर्युक्त सभी


Correct Answer :Semipermeable/ वरणाक्रमक पारगम्य

What is the unit of protein synthesis in the cell?/  प्रोटीन संश्लेषण की इकाई है?

Mitochondria/ माइटोकॉन्ड्रिया
Chloroplast/ क्लोरोप्लास्ट
Ribosomes/ राइबोजोम
Lysosomes/ लाइजोजोम


Correct Answer :Ribosomes/ राइबोजोम

Which apparatus is used in the measurement of rate of transpiration? / वाष्पोत्सर्जन की दर  किससे मापी जाती है?

Auxeno meter
Potometer
Photometer
Respiro meter


Correct Answer :Potometer

Richmond and Lang effect is associated with? /रिचमंड और लैंग प्रभाव जुड़ा है?

Increase in length and flowering
Delay of senescence
Auxin bioassay
Avena Curvature test


Correct Answer :Delay of senescence

Enzymes are made up of? / एन्जाइम बने होते है?

Lipid/ लिपिड
Carbohydrate/ कार्बोहाइड्रेट 
Protein/ प्रोटीन
None of these/ उपर्युक्त में से कोई भी नहीं


Correct Answer :Protein/ प्रोटीन

Who was the first to coin the term ecosystem?

A)
Carl Linnaeus

B)
Arthur Tansley

C)
Thomas Robert Malthus

D)
Gregor Mendel


Correct Answer :

Arthur Tansley


Explanation :

Arthur G. Tansley (1871 – 1955), was a British botanist at the beginning of the 20th century, coined the term ecosystem

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Height and Distance

An aeroplane flying at a height of 300 m above the ground passes vertically above another plane at an instant when the angles of elevation of the two planes from the same point on the ground are 60º and 45º respectively. What is the height of the lower plane from the ground?

From the top of a building 90 m high, the angles of depression of the top and the bottom of a tree are 30º and 45º respectively. What is the height of the tree?

Trigonometry

What is the value of sinx √( 1 /1+cosx + 1 /1-cosx ) ?

What is cos4 A - sin4 A / cos2 A - sin2 A equal to?

If 7sin2 x +3cos2 x = 4, 0 < x < 90º ,then what is the value of tan x?

If x = a cosθ + b sinθ and y = a sinθ - b cosθ then what is x2 + y2 equal to?

Average

The mean of 5 numbers is 15. If one more number is included, the mean of the 6 numbers becomes 17. What is the included number?

The mean marks obtained by 300 students in a subject are 60. The mean of top 100 students was found to be 80 and the mean of last 100 students was found to be 50. The mean marks of the remaining 100 students are?

In an asymmetrical distribution, of the mean and median of the distribution are 270 and 220 respectively, then the mode of the data is?

Let a, b, c, d, e, f, g be consecutive even numbers and j, k, l, m, n be consecutive odd numbers. What is the average of all the numbers?

Alligation or Mixture

25 kg of alloy X is mixed with 125 kg of alloy Y. If the amount of lead and tin in the alloy X is the ratio 1 : 2 and the amount of lead and tin in the alloy Y is in the ratio 2 : 3, then what is the ratio of lead to tin in the mixture?

Simplification

The ratio of two numbers is 1 : 5 and their product is 320. What is the difference between the square of these two numbers?

Trigonometry

What is the value of cot 4π/3 ?

Indian Politics

Article-24 of the Indian Constitution ‘Prohibition of employment of children in factories, etc’ deals with?

Article-134A of the Indian Constitution ‘Certificate for appeal to the Supreme Court’ deals with?

Chemistry

Who invented Aspirin?

Physics

A larger force on a rotating body results in larger?

What is the unit of the physical quantity, magnetic flux density?