Refresher 15
Quiz by Gian Bathan
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63 questions
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- Q1Which of the following transformer has only one winding?distributionpowercurrentautotransformer30s
- Q2What is the standard device number for differential protective relay?8964818730s
- Q3What device function number is instantaneous overcurrent relay?5027512130s
- Q4Which of the following is used for tuning an amplitude modulation (AM) signal.pin dioidthermistorresonatorvaractor30s
- Q5Tendency of the current to move outward the surface of a conductorHall effectSeebeek effectSkin effectThompson effect30s
- Q6The commonly used light sensor in a modern fax machine is thephoto tubeliquid crystal displaycharge couple devicephoto transistor30s
- Q7The power intended to be available even under emergency condition is calledfirm powerspinning reservecold reservehot reserve30s
- Q8An instrument that can be used for both DC and AChot wireinduction typemoving ironmoving coil30s
- Q9A gas turbine operates on which cycle?Diesel cycleRankine cycleOtto cycleBrayton cycle30s
- Q10A current is clockwise around the outside edge of this page and uniform magnetic fiels is directed parallel to the page, from left to right. If the magnetic force is the only force acting on the page, the page will turn so the right edgemoves away from youmoves towards youmoves to your rightmoves to your left30s
- Q11A ___ is an electrical device that prevents an electrocution caused by an accident or equipment malfunction.ground fault curcuit interrupterfusefault interruptercircuit breaker30s
- Q12A charged capacitor and an inductor are connected in series. At time t=0 the current is zero, but the capacitor is charged. If T is the period of the resulting oscillations, the next time after t=0 that the charge on the capacitor is a maximum isTT/42TT/230s
- Q13Which of the following has the greatest effect in decreasing the oscillation frequency of an LC circuit? Using insteadL/2 and C/2L/2 and 2C2L and C/22L and 2C30s
- Q14In subsequent iteration, a voltage-controlled bus is treated as a load bus when itsvoltage limit is violatedactive power limit is violatedreactive power limit is violatedeither (a) or (b)30s
- Q15Which of the following is NOT a property of magnetic field lines?the lines intersect surfaces of equal intensity at right anglesmagnetic field lines have no beginnings and no endsthe field is stronger where the lines are closer togetherthe lines cross themselves only at right angles30s