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Vizag Steel Jr. Trainee (Mechanical) Previous Year Question Paper

on September 26, 2018

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BASIC ELECTRICAL PART 3 121. Where do the ‘correctly terminated asymmetrical networks’ show termination at both the ports of network? a. In image impedances b. In iterative impedances c. In characteristic impedances d. All of the above ANSWER: A 122. Which unit is used for the measurement of an insertion loss? a. Neper b. Weber c. Ohm d. Watt ANSWER: A 123. How is an insertion loss represented in terms of power ratio? a. α = 10 log10 | P1 / P2 | decibel b. α = 10 log10 | P2 / P1 | decibel c. α = 20 log10 | P1 / P2 | decibel d. α = 20 log10 | P2 / P1 | decibel ANSWER: A 124. When converting from a current source to a voltage source, the ________ will remain the same. A) current B) voltage C) no load current D) resistance Ans D 125 .An ideal current source has a) Infinite source resistance b) Zero internal resistance c)Zero voltage on no load d) Zero ripple Ans-A 126. An ideal voltage source should have a) Zero source resistance b) Infinite source res...

BASIC ELECTRICAL PART 1 - FOR ALL EXAM

BASIC ELECTRICAL PART -1 1) Filters are used to convert a. Pulsating dc signal into a pure dc signal b. Pure dc signal into a pulsating dc signal c. Pulsating dc signal into a pure ac signal d. Pulsating ac signal into a pure dc signal ANSWER: Pulsating dc signal into a pure dc signal 2) In DOL fuses are provided to protect against a. Short circuit protection b. Over voltage c. Over current d. Over load ANSWER: Short circuit protection 3) Kirchhoff's second law is based on law of conservation of (A) charge (B) energy (C) momentum (D) mass. Answer: B 4. For carbon resistors what is the color for 5? (A) Green (B) Black (C) Orange (D) Gray. Answer A 5. Which of the following can have positive or negative charge? (A) Electron (B) iron (C) Hole (D) Neutron. Answer B 6. In a nickel-cadmium-alkali cell the electrolyte is (A) sulphur acid (B) potassium hydroxide (C) zinc chloride (D) ammonium chloride. Answer B 7.Which method can be used for absolut...

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Vizag Steel Jr. Trainee (Mechanical) Previous Year Question Paper

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