Physics Circuit breaker usually operate under Steady state of short-circuit current Sub-transient state of short-circuit current Transient state of short-circuit current After D. C. component has ceased Steady state of short-circuit current Sub-transient state of short-circuit current Transient state of short-circuit current After D. C. component has ceased ANSWER DOWNLOAD EXAMIANS APP
Physics The force of friction between two surfaces will increase if: A layer of lubricant is kept between the two surfaces Air gap is created between the two surfaces The two surfaces are pressed harder Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces Air gap is created between the two surfaces The two surfaces are pressed harder Irregularities on both the surfaces are removed ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following metals is used for the manufacture of heating elements provided in electric iron ? Chromium Tungsten Nichrome Nickel Chromium Tungsten Nichrome Nickel ANSWER DOWNLOAD EXAMIANS APP
Physics In the Earth, the weight of a body is maximum at the Equator South Pole Surface North Pole Equator South Pole Surface North Pole ANSWER DOWNLOAD EXAMIANS APP
Physics In radio-communication, the signals emitted by transmitting antenna are reflected on Stratosphere Ionosphere Troposphere Ozonosphere Stratosphere Ionosphere Troposphere Ozonosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Ozone layer above the surface of Earth provides a shield against Gamma rays Ultra-violet rays X-rays Infra-red rays Gamma rays Ultra-violet rays X-rays Infra-red rays ANSWER DOWNLOAD EXAMIANS APP
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