Leave a Comment / FREE COURSES, Udemy / By admin Master Transaction Management with SpringBoot and Data JPA Learn to implement Transaction management with your SpringBoot and Spring Data JPA application 1000 Coupons are used 24 hours passed If YOU are an Electrical Engineer then following quiz is for YOU 0% 2 Electrical Engineering Smart Series Quiz-1 These questions are taken from smart series book which covers all the subjects of Electrical Engineering and Technology Field 1 / 30 Category: Uncategorized 1) Which of the following ideas means deciding at runtime what strategy to summon? a) Dynamic typing b) Dynamic hiding c) Dynamic loading d) Dynamic blinding 2 / 30 Category: Electroncis 2) A semiconductor device is connected in a series circuit with a battery and a resistance. If the polarity of battery is reversed, the current drops almost to zero. The device may be a) P-type semiconductor b) N-type semiconductor c) P-N junction d) An intrinsic semiconductor 3 / 30 Category: Singal and Systems 3) Main purpose of modulation process is to a) Distort the original signal b) Add extra noise to the signal c) Reduce the mutual interference d) Time shift in frequency e) Increase signal to noise ratio 4 / 30 Category: Uncategorized 4) Drop out to cut off ratio for most relays is of the order of a) 0.2 to 0.3 b) 0.3 to 0.4 c) 0.4 to 0.6 d) 0.6 to 1.0 5 / 30 Category: Power System Analysis 5) The quantity “Rm” which relates dependent voltage to controlling current is called a) Trans Conductance b) Maximum Resistance c) Trans Resistance d) Limiting Resistance 6 / 30 Category: Power System Analysis 6) There are ____ types of dependent sources, depending on the controlling variable and output of the source. a) Two b) Three c) Four d) Five 7 / 30 Category: Electrical Machines 7) A transformer transforms a) Voltage b) Power c) Frequency d) Current e) Both A & D According to NTS the answer is voltage and current, however in actual it is the power which transformer transforms. 8 / 30 Category: Electrical Machines 8) Radio frequency chokes are air cored to a) Keep frequency low b) Keep inductive reactance low c) Keep frequency high d) Keep inductive reactance high 9 / 30 Category: Uncategorized 9) Fourier series are infinite series of elementary trigonometric functions i.e. Sine and a) Cosine b) Sec c) Cosec d) Tan We have to maintain flatness of the surface. 10 / 30 Category: DC Machines 10) The Pole Shoes of DC Machines are fastened to the pole core by: a) Welding b) Soldering c) Countersunk Screws d) Steel Clumps Countersunk Screws have flattened head which provide flat and smooth surface to avoid any irregulation in pole flux. 11 / 30 Category: Electroncis 11) SCR (Silicon Controlled Rectifier) goes into saturation, when gate-cathode junction is a) Forward biased b) Reversed biased c) In steady state d) Polarized 12 / 30 Category: Uncategorized 12) If the input capacitor of a power supply is shorted, it will result in a) Excessive hum b) Reduced voltage output c) No voltage output d) Low voltage output 13 / 30 Category: Power Plant 13) The average fossil fuel plant convers about is ______ % of the power going in to the power going out. a) 33 b) 40 c) 25 d) 50 14 / 30 Category: Power Transmission and Distributions 14) Which of the following conditions relate line resistance ‘R’ and line reactance ‘X’ for maximum steady state power transmission on a transmission line? a) X=R b) R=[Square Root (3)]*X c) X=[Square Root (3)]*R d) X=R / [Square Root (3)] 15 / 30 Category: Probability 15) What is the probability of a number “2” when a dice is thrown? a) 2/6 b) 1/3 c) 1/6 d) 1/4 16 / 30 Category: Power Plant 16) ______ is a by-product of paper industry, which is used by many industries as a primary source of electricity. a) Landfill gas b) Sludge waste c) Black Liquor d) Wood waste 17 / 30 Category: Uncategorized 17) Admittance is the reciprocal of a) Capacitive reactance b) Inductive reactance c) Reactive power d) Impedance 18 / 30 Category: Electroncis 18) Discrete device field effect transistor is classified on the basis of their a) Resistive state b) Conducting state c) Voltaic state d) Control gate construction 19 / 30 Category: Power Electroncis 19) If the firing angle in an SCR rectifier is decreased, output will be a) Maximum b) Increased c) Decreased d) Unaffected 20 / 30 Category: Power Plant 20) Landfill gas is actually _______ used in thermal power plants. a) Methane b) Ethane c) Black Liquor d) Phosphorus 21 / 30 Category: Singal and Systems 21) The _____ time signal is described for all values of time. a) Discrete b) Continuous c) Random d) Digital 22 / 30 Category: Power Transmission and Distributions 22) For which purpose bundled conductors are employed to a power system a) Appearance of the transmission line b) Mechanical stability of the line c) Decrease system stability d) Increase the short circuit current 23 / 30 Category: Uncategorized 23) Conjunction x ^ y behaves on digits 0 and 1 exactly as ____ does for ordinary algebra. a) Addition b) Subtraction c) Multiplication d) Division 24 / 30 Category: Power Plant 24) If field resistance of DC shunt generator is increased beyond its critical value, the generator a) output voltage will exceed its nameplate rating b) will not build up c) may burn out if loaded to its nameplate rating d) power output may exceed its nameplate rating 25 / 30 Category: Telecommunications 25) Modulation index in amplitude modulation a) Is defined as the measure of extent of amplitude variation about an un-modulated carrier. b) Does not impact power dissipation c) Is independent of integral multiple of amplitude d) None of these 26 / 30 Category: Uncategorized 26) Which line is obtained by the method of least square? a) Straight line b) Second degree equation line c) Polynomial equation line d) Best fit line 27 / 30 Category: Uncategorized 27) Power in AC circuit is found by a) VI sin (phi) b) VI tan (phi) c) VI cos (phi) d) VI 28 / 30 Category: Uncategorized 28) At very sunny places this source(s) of energy can be found a) Jet fuel b) Geothermal c) Solar d) Both B & C 29 / 30 Category: Electrical Machines 29) Fundamental property used in single node pair circuit analyzer is that ______ across all elements is same. a) Current b) Voltage c) Resistance d) Inductance We have to maintain flatness of the surface. 30 / 30 Category: Power System Analysis 30) Which of the following are considered as disadvantages(s) of Gauss-Seidel method over Newton Raphson method in load flow analysis? a) More iteration b) More memory requirement and less accuracy c) Less iteration but more memory d) More accuracy and more memory Countersunk Screws have flattened head which provide flat and smooth surface to avoid any irregulation in pole flux. 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