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upsc.gov.in The Engineering Services Examination (ESE) is a standardized test conducted annually by the Union Public Service Commission (UPSC) to recruit officers to various engineering Services under the Government of India .
The Model 3 was named the top-rated electric car of 2019 by Edmunds.com, as well as being named Edmunds' top-rated Luxury Electric Vehicle for 2020. [256] [257] In late 2019, the Model 3 was also named a Top Safety Pick+ by the IIHS. [258] The Model 3 also won Car of the Year in Denmark, Car of the Year 2020 in Norway, and Swiss Car of the Year ...
The Union Public Service Commission (UPSC; ISO: Saṁgha Loka Sevā Āyoga) is a constitutional body tasked with recruiting officers for All India Services and the Central Civil Services (Group A and B) through various standardized examinations. [1] In 2023, 1.3 million applicants competed for just 1,255 positions. [2]
Service life is not to be confused with shelf life, which deals with storage time, or with technical life, which is the maximum period during which it can physically function. [3] Service life also differs from predicted life , in terms of mean time before failure (MTBF) or maintenance-free operating period (MFOP).
The Combined Defence Services Examination (CDS) is a standardised test conducted annually by the Union Public Service Commission (UPSC) for recruitment of officer cadets in the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers Training Academy (OTA).
A lithium-titanate battery is a modified lithium-ion battery that uses lithium-titanate nanocrystals, instead of carbon, on the surface of its anode.This gives the anode a surface area of about 100 square meters per gram, compared with 3 square meters per gram for carbon, allowing electrons to enter and leave the anode quickly.
For example, a battery discharged one-half, allows a 3.5 hour normal rate charge. Overcharging wastes current and causes rapid evaporation of the water in the electrolyte. For tapering rates of charge, an average of 1.67 volts should be maintained across the cell terminals throughout the charge.
Oxygen-ion batteries (Oi batteries) are a type of rechargeable battery that works similarly to lithium-ion batteries. The electrodes in oxygen-ion batteries are perovskite-based ceramics instead of typical lithium-ion battery materials (graphite, iron, etc.). The batteries are fire-resistant, and highly durable.