General Awareness Test-15 - NDA MCQ

Rudramadevi was a monarch of the Kakatiya dynasty in the Deccan Plateau modern Andhra Pradesh, from 1263 until her death. She probably began her rule of the Kakatiya kingdom jointly with her father, Ganapatideva, as his co-regent, from 1261-62. She assumed full sovereignty in 1263.

The battle of Koppam was fought between the Western Chalukyas and the Cholas.

Sedimentary rocks are types of rock that are formed by the deposition and subsequent cementation of mineral or organic particles on the floor of oceans or other bodies of water at the Earth's surface. Minerals associated with is are mainly magnesium and potassium.

Article 215 empowers the High Courts of te states to be courts of record. Article 32 provides the right to Constitutional remedies which means that a person has right to move to Supreme Court (and high courts also) for getting his fundamental rights protected.

The Lorenz curve is closely associated with measures of income inequality, such as the Gini coefficient.

A ferromagnetic material, such as iron, does not have a constant relative permeability. As the magnetizing field increases, the relative permeability increases reaches a maximum and then decreases.

An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.

The critical angle will be minimum for the violet colour of the spectrum. We know that refractive index μ is given as c/v where c is the velocity of light and v is the velocity of the respective colour in the medium. In refraction, the velocity of the red colour is maximum and that of the violet colour is minimum.

Both roots and shoots have meristematic tissue at their tips called apical meristems that are responsible for the lengthening of roots and shoots.

Hydrophytes float on the water surface due to the presence of Aerenchyma.

The root nodules of gram plant contain symbiotic bacteria which is responsible for fixing nitrogen. So, gram is preferred for mixed farming. 

Henna (Lawsonia inermis) is a flowering plant. It is used to dye skin, hair, fingernails, leather and wood. Colouring feature of henna is due to lawsone, an organic compound that shows affinity for proteins and amino acids in animals. 

Golden rice is rich in β-carotene and iron. It is a variety of Oryza sativa evolved through process of biotechnology to synthesize β-carotene, a precursor of provitamin-A. 

Bryophytes do not have vascular bundles (xylem & phloem) and roots so they show similarity with algae.

Azotobacter is a genus of usually motile and free living bacteria that builds thick walled cysts. They are able to fix nitrogen in soil. 

The ear muscles are vestigial organs in man. Vestigial organs are not functional in organisms. These are not active in related animals but were functional in their ancestors. There are more than 90 vestigial organ in human beings. 

The parrot, platypus and kangaroo fall in the group of warm blooded animals. They show homothermy.

Chlorophyll is a tetrapyrrole ring system that contains the magnesium ion. The tetrapyrrole ring system chelates magnesium ion. The tetrapyrrole ring system chelates magnesium illustrating a conjugated double bond. This bond gives the light absorption feature to chlorophyll and provides it green colour. 

The stimulating nature of tea is due to alkaloid caffeine found in tea. Caffeine is bitter due to white crystalline xanthine alkaloid.

Both statements are true