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Consider the following statements: 1. Additional cavities serve to velocity-modulate the electron beam and produce an increase in the energy available at the output. 2. The addition of intermediate cavities between the input and output cavities of the basic klystron greatly improves the amplification, power output, and efficiency of the klystron. Which of the above statements is/are correct?
Pressure drop due to pipe fittings can be estimated by the equation, $$\frac{{\Delta {\text{p}}}}{\rho } = 4{\text{f}}.\frac{{{{\text{L}}_{\text{e}}}}}{{\text{D}}}.\frac{{{{\text{V}}^2}}}{{2{\text{gc}}}},$$    where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of $$\frac{{{{\text{L}}_{\text{e}}}}}{{\text{D}}}$$ (dimensionless) for 45° elbow and 180° close return bends would be respectively around
Which of the following statements regarding static methods are correct?
1. Static methods are difficult to maintain, because you can not change their implementation.
2. Static methods can be called using an object reference to an object of the class in which this method is defined.
3. Static methods are always public, because they are defined at class-level.
4. Static methods do not have direct access to non-static methods which are defined inside the same class.
Two statements are given followed by four conclusions numbered I, II, III and IV. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: I. Some forms are open ended. II. All close ended are forms. Conclusions: I. No open ended are forms. II. Some close ended are open ended. III. No forms are close ended. IV. All open ended are close ended.
which of the following step / assumption in regression modeling impacts the trade-off between under-fitting and over-fitting the most.
Threading or structural fold recognition predicts the structural fold of an unknown protein sequence by fitting the sequence into a structural database and selecting the best-fitting fold.
The earliest examples of wooden barrel construction by force-fitting of metal bands and shrink-fitting of metal tiers of wooden wheels indicate the art of ___________
Contours, cavities and passages in the casting can be possible without placing of any cores in the casting.
For the removal of cores from the moulding box, caustic bath can be used which is very fast in processing the large and complex cores.
After preparation of cores, cores on the core plates are sent for what?