Electric Power Utilization - Electrical Engineering (MCQ) questions and answers
Dear Readers, Welcome to Electric Power Utilization multiple choice questions and answers with explanation. These objective type Electric Power Utilization questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma.
Specially developed for the Electrical Engineering freshers and professionals, these model questions are asked in the online technical test and interview of many companies.
These tutorial are also important for your viva in university exams like Anna university, Pune, VTU, UPTU, CUSAT etc.
1) For a good weld,
- Published on 07 Sep 15
a. Cross - section of the added metal should be small and oxidation should be minimum
b. Cross - section of the added metal should be small and oxidation should be maximum
c. Cross - section of the added metal should be large and oxidation should be minimum
d. Cross - section of the added metal should be large and oxidation should be maximum
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Answer
Explanation
Related Ques
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ANSWER: Cross - section of the added metal should be small and oxidation should be minimum
Explanation:
No explanation is available for this question!
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2) The advantage of rectifier type welding set is
- Published on 07 Sep 15
a. Reduced no - load losses
b. Easy arc starting
c. Less hazardous
d. Both (a) and (b)
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3) The voltage - current characteristics of the arc welding must be
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a. Exponentially rising
b. Drooping
c. Straight line
d. Parabolic
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4) Spot welding is used to weld metal pieces whose thickness
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a. Should be greater than 12 mm
b. Lesser than 12 mm
c. Lies between 15 to 20 mm
d. Greater than 20 mm
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5) The electrodes used for projection welding are
- Published on 07 Sep 15
a. Flat and smaller in diameter
b. Flat and larger in diameter
c. Round and smaller in diameter
d. Round and larger in diameter
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6) In percussion welding, the heat is produced by a rapid discharge of stored electrical energy from
- Published on 07 Sep 15
a. Capacitor
b. Inductor
c. Resistor
d. Transformer
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7) Seam welding is not used for the
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a. Welding in tanks
b. Welding in transformers
c. Welding in air crafts
d. Welding alloys of copper
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8) The lighting system of almost all the earlier coaches and all the newly manufactured coaches has
- Published on 07 Sep 15
a. 50 V
b. 110 V
c. 220 V
d. 420 V
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9) Pantograph collector is used in railways where the train runs at 100 to 130 kmph. Which among the following is true about pantograph collector?
- Published on 07 Sep 15
a. It is unidirectional
b. The erection of the overhead network is complicated
c. Its height cannot be varied
d. None of these
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10) A low frequency supply is given to the single phase AC system for track electrification because
- Published on 07 Sep 15
a. It improves commutation
b. Increases efficiency
c. Improves power factor
d. All of these
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