EE GATE 2016 SET 1 - Online Test

Q1. In a 100 bus power system, there are 10 generators. In a particular iteration of Newton Raphson load flow technique (in polar coordinates), two of the PV buses are converted to PQ type. In this iteration,
Answer : Option A
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Q2. Consider a system consisting of a synchronous generator working at a lagging power factor, a synchronous motor working at an overexcited condition and a directly grid-connected induction generator. Consider capacitive VAr to be a source and inductive VAr to be a sink of reactive power. Which one of the following statements is TRUE?
Answer : Option A
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Q3. Consider a continuous-time system with input x(t) and output y(t) given by y(t) = x(t) cos(t) This system is
Answer : Option C
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Q4. A 4-pole, lap-connected, separately excited dc motor is drawing a steady current of 40 A while running at 600 rpm. A good approximation for the waveshape of the current in an armature conductor of the motor is given by
Answer : Option C
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Q5. If the star side of the star-delta transformer shown in the figure is excited by a negative sequence voltage, then

Answer : Option D
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Q6. If an ideal transformer has an inductive load element at port 2 as shown in the figure below, the equivalent inductance at port 1 is

Answer : Option B
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Q7. Suppose x1(t) and x2(t) have the Fourier transforms as shown below

Which one of the following statements is TRUE?
Answer : Option C
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Q8. The transfer function of a system is  The steady state output y(t) is A cos(2t + φ) for the input cos(2t). The values of A and φ, respectively are
Answer : Option B
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Q9. The output of a continuous-time, linear time-invariant system is denoted by T{x(t)} where x(t) is the input signal. A signal z(t) is called eigen-signal of the system T , when T{z(t)} = γz(t), where γ is a complex number, in general, and is called an eigenvalue of T. Suppose the impulse response of the system T is real and even. Which of the following statements is TRUE?
Answer : Option D
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Q10. The phase cross-over frequency of the transfer function  is
Answer : Option A
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