Science DMPQ

The cost of access to space is the major deterrent in space exploration and space utilization. A reusable launch vehicle is the unanimous solution to achieve low cost, reliable and on-demand space access. Reusable Launch Vehicle-Technology Demonstration Program or RLV-TD is a series of technology demonstration missions that have been considered as a first step … Read more

A) Patents: This refers to innovations – new or improved product and processes which are meant for industrial applications.  This is a territorial right which requires registration for a limited time.  Patent is a contract between an inventor as an individual and the society as a whole.  The inventor has exclusive right to prevent anybody … Read more

  (a)Male and Female reproductive organ:    The male reproductive organs include a pair of testes (singular, testis), two sperm ducts and a penis. The testes produce the male gametes called sperms. The female reproductive organs are a pair of ovaries, oviducts (fallopian tubes) and the uterus. Ovary produces female gametes called ova (eggs).   (b)Asexual production:  It is a … Read more

With the increase in Urbanisation and modernisation there is an increase in pollution, unhealthy lifestyle, environmental toxins which in turn increases the risk of disease.  The major health problems associated with modern lifestyle are as follows: Rise in pollution due to unplanned Pollution related problems like Asthama, Lung related disease etc. are on rise. Life … Read more

GSAT-30 is aimed at providing high-quality television, telecommunications and broadcasting services. The 3,357-kg GSAT-30 derives its heritage from ISRO’s earlier INSAT/GSAT satellite series, and is equipped with 12 C and 12 Ku band transponders. GSAT-30 will serve as replacement to the aging INSAT-4A spacecraft services with enhanced coverage. The satellite will provide Indian mainland and … Read more

A fuel cell uses the chemical energy of hydrogen or another fuel to cleanly and efficiently produce electricity. If hydrogen is the fuel, electricity, water, and heat are the only products. Fuel cells are unique in terms of the variety of their potential applications; they can provide power for systems as large as a utility … Read more

Electrical transformers can be classified into different categories depending upon their end-use, construction, supply, and purpose. On the Basis of Design Core Type Transformer This transformer features two horizontal sections with two vertical limbs and a rectangular core with a magnetic circuit. Cylindrical coils (HV and LV) are placed on the central limb of the core … Read more

Renovascular hypertension Renovascular hypertension is high blood pressure due to narrowing of the arteries that carry blood to the kidneys. This condition is also called renal artery stenosis. renal artery stenosis is a narrowing or blockage of the arteries that supply blood to the kidneys.  The most common cause of renal artery stenosis is a … Read more

The nitrogen cycle is a complex biogeochemical cycle in which nitrogen is converted from its inert atmospheric molecular form (N2) into a form that is useful in biological processes. The Nitrogen cycle contains various stages: Nitrogen fixation: Inert form of Nitrogen is fixed and converted into organic form in a process called nitrogen fixation. Most … Read more

. Important tools which come under Biotechnology are as follows: Genetic engineering Genetic engineering is the process of using recombinant DNA (rDNA) technology to alter the genetic makeup of an organism. Traditionally, humans have manipulated genomes indirectly by controlling breeding and selecting offspring with desired traits. Genetic engineering involves the direct manipulation of one or … Read more