Leave a Comment / By admin / March 15, 2023 Excel Mastery: 4 Proven Practice Tests for Exam Success 2023Elevate Your Excel Career with This Power-Packed Practice Test Bundle1000 Coupons are used24 hours passedIf YOU are an Electrical Engineer then following quiz is for YOU0% 2 Electrical Engineering Smart Series Quiz-1These questions are taken from smart series book which covers all the subjects of Electrical Engineering and Technology Field 1 / 30 Category: Electroncis1) SCR (Silicon Controlled Rectifier) goes into saturation, when gate-cathode junction is a) Forward biased b) Reversed biased c) In steady state d) Polarized 2 / 30 Category: Singal and Systems2) 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 3 / 30 Category: Telecommunications3) 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 4 / 30 Category: Power Plant4) Landfill gas is actually _______ used in thermal power plants. a) Methane b) Ethane c) Black Liquor d) Phosphorus 5 / 30 Category: Power Transmission and Distributions5) 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 6 / 30 Category: Power Plant6) ______ 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 7 / 30 Category: Electrical Machines7) 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. We have to maintain flatness of the surface. 8 / 30 Category: Power System Analysis8) 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.9 / 30 Category: Electrical Machines9) 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 10 / 30 Category: Power System Analysis10) Power in AC circuit is found by a) VI sin (phi) b) VI tan (phi) c) VI cos (phi) d) VI 11 / 30 Category: Basic Electrical Engineering11) At very sunny places this source(s) of energy can be found a) Jet fuel b) Geothermal c) Solar d) Both B & C 12 / 30 Category: Power Transmission and Distributions12) 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)] 13 / 30 Category: Basic Electrical Engineering13) 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 We have to maintain flatness of the surface. 14 / 30 Category: DC Machines14) 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.15 / 30 Category: Electroncis15) 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 16 / 30 Category: Electrical Machines16) Fundamental property used in single node pair circuit analyzer is that ______ across all elements is same. a) Current b) Voltage c) Resistance d) Inductance 17 / 30 Category: Basic Electrical Engineering17) Fourier series are infinite series of elementary trigonometric functions i.e. Sine and a) Cosine b) Sec c) Cosec d) Tan 18 / 30 Category: Basic Electrical Engineering18) Conjunction x ^ y behaves on digits 0 and 1 exactly as ____ does for ordinary algebra. a) Addition b) Subtraction c) Multiplication d) Division 19 / 30 Category: Electroncis19) 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: Power System Analysis20) 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 21 / 30 Category: Singal and Systems21) The _____ time signal is described for all values of time. a) Discrete b) Continuous c) Random d) Digital 22 / 30 Category: Power Transmission and Distributions22) 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 23 / 30 Category: Power Plant23) 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 24 / 30 Category: Basic Electrical Engineering24) 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 25 / 30 Category: Power System Analysis25) The quantity “Rm” which relates dependent voltage to controlling current is called a) Trans Conductance b) Maximum Resistance c) Trans Resistance d) Limiting Resistance 26 / 30 Category: Power Plant26) 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 27 / 30 Category: Power System Analysis27) There are ____ types of dependent sources, depending on the controlling variable and output of the source. a) Two b) Three c) Four d) Five 28 / 30 Category: Probability28) 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 29 / 30 Category: Power Electroncis29) If the firing angle in an SCR rectifier is decreased, output will be a) Maximum b) Increased c) Decreased d) Unaffected 30 / 30 Category: Network Analysis30) Admittance is the reciprocal of a) Capacitive reactance b) Inductive reactance c) Reactive power d) Impedance Your score isThe average score is 28%Share this quiz with your friends to help them LinkedIn Facebook Follow us on following platforms also 0% Send feedback Disclaimer:These course coupons are offered by the official website and we do not have any type of ownership of courses.Enroll NowMore Courses
