Leave a Comment / By admin / April 30, 2023 Post Views: 4 Siemens S7-1200 PLC & HMI using TIA Portal Ladder Logic Programming of Siemens PLC and HMI using TIA Portal V15 Disclaimer: These course coupons are offered by the official website and we do not have any type of ownership of courses. 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: Power Transmission and Distributions 1) 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)] 2 / 30 Category: Basic Electrical Engineering 2) 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. 3 / 30 Category: DC Machines 3) 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. 4 / 30 Category: Electrical Machines 4) 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 5 / 30 Category: Probability 5) 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 6 / 30 Category: Power Electroncis 6) If the firing angle in an SCR rectifier is decreased, output will be a) Maximum b) Increased c) Decreased d) Unaffected 7 / 30 Category: Power Plant 7) Landfill gas is actually _______ used in thermal power plants. a) Methane b) Ethane c) Black Liquor d) Phosphorus 8 / 30 Category: Network Analysis 8) Admittance is the reciprocal of a) Capacitive reactance b) Inductive reactance c) Reactive power d) Impedance 9 / 30 Category: Basic Electrical Engineering 9) Conjunction x ^ y behaves on digits 0 and 1 exactly as ____ does for ordinary algebra. a) Addition b) Subtraction c) Multiplication d) Division 10 / 30 Category: Power System Analysis 10) Power in AC circuit is found by a) VI sin (phi) b) VI tan (phi) c) VI cos (phi) d) VI 11 / 30 Category: Telecommunications 11) 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 12 / 30 Category: Power Transmission and Distributions 12) 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 13 / 30 Category: Basic Electrical Engineering 13) 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 14 / 30 Category: Electroncis 14) SCR (Silicon Controlled Rectifier) goes into saturation, when gate-cathode junction is a) Forward biased b) Reversed biased c) In steady state d) Polarized 15 / 30 Category: Power System Analysis 15) There are ____ types of dependent sources, depending on the controlling variable and output of the source. a) Two b) Three c) Four d) Five 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: Power Plant 17) 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 18 / 30 Category: Electrical Machines 18) 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. 19 / 30 Category: Electroncis 19) 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 20 / 30 Category: Singal and Systems 20) The _____ time signal is described for all values of time. a) Discrete b) Continuous c) Random d) Digital 21 / 30 Category: Electrical Machines 21) Fundamental property used in single node pair circuit analyzer is that ______ across all elements is same. a) Current b) Voltage c) Resistance d) Inductance 22 / 30 Category: Power Plant 22) 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 23 / 30 Category: Electroncis 23) 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 We have to maintain flatness of the surface. 24 / 30 Category: Power System Analysis 24) 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. 25 / 30 Category: Power Transmission and Distributions 25) 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 26 / 30 Category: Power System Analysis 26) The quantity “Rm” which relates dependent voltage to controlling current is called a) Trans Conductance b) Maximum Resistance c) Trans Resistance d) Limiting Resistance 27 / 30 Category: Singal and Systems 27) 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 28 / 30 Category: Basic Electrical Engineering 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: Power System Analysis 29) 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 30 / 30 Category: Basic Electrical Engineering 30) 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 Your score isThe average score is 28%Share this quiz with your friends to help them LinkedIn Facebook Twitter Follow us on following platforms also 0% Send feedback Enroll Now More Courses Share this:TweetPocketRedditWhatsAppShare on TumblrTelegramLike this:Like Loading... 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