A block of bits is divided into rows and a redundant row of bits is added to the whole block. It can detect burst errors. If two bits in one data unit are damaged and bits in exactly the same positions in another data unit are also damaged, the LRC checker will not detect an error. In LRC a redundant data unit follows n data units.
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
What is the history of Nuclear Engineering?
Which of the following may be used to measure the rate of nuclear disintegration? A. Geiger-Muller Counter B. Cyclotron C. Cold chamber D. Mass spectrograph?
Heat is generated in a nuclear reactor (thermal) by A. combustion of a nuclear fuel e.g. uranium. B. fusion of atoms of uranium. C. absorption of neutrons in uranium atoms. D. fission of U-235 by neutrons.?
Which of the following tests is not done for transformer oil? A. Flash point and acid value. B. Aniline point. C. Dielectric strength. D. Copper strip corrosion test.
Diesel used in naval applications has a minimum cetane number of A. 25 B. 35 C. 45 D. 65
Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. A. Smoking tendency of hydrocarbons increases in the order paraffins → isoparaffins → naphthenes → aromatics. B. Smoking tendency of paraffin's increases with decrease in its molecular weight. C. Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond. D. Smoking tendency of aromatics decreases with increase in its molecular weight.
Which is the most undesirable component in kerosene? A. Aromatics B. i-paraffins C. n-paraffins D. Naphthenes
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