Data link protocols are sets of specifications used to implement the data link layer. The categories of Data Link protocols are:
1. Asynchronous Protocols
2. Synchronous Protocols
☛ Character Oriented Protocols
☛ Bit Oriented protocols
Which of the following is artificially produced as it does not occur in nature ? A. Uranium-235 B. Uranium-233 C. Plutonium-239 D. Both (b) and (c)
Gas cooling as compared to water cooling of nuclear reactors A. can not attain a high temperature. B. is more efficient as gas has a higher specific heat. C. can produce only saturated steam for feeding to power turbine. D. none of these.
The second underground nuclear test was conducted by India at A. Jaisalmer B. Pokhran C. Kalpakkan D. Narora
The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be __________ of its original weight. A. 1/2 B. 1/4 C. 1/8 D. 1/16
The decay product of tritium (a beta emitter) is A. lithium B. helium C. deuterium D. hydrogen?
Which is the most commonly used molten metal for cooling of nuclear reactors ? A. Calcium B. Sodium C. Mercury D. Zinc
Which of the following is not a naturally occurring nuclear fuel A. Uranium-238 B. Thorium-233 C. Plutonium-239 D. None of these
An electron has a mass that is approximately __________ that of the proton. A. 1836 (approximately) B. 1/1836 (approximately) C. 1 D. ∞?
The decrease in the atomic number is not observed in case of A. electron capture B. ?-emission C. ?-emission D. positron emission?
The mass number of an element is not changed, when it emits __________ radiations. A. α & β B. β & γ C. γ & α D. α, β, & γ
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