EE GATE 2013 - Online Test
Q1. A single-phase load is supplied by a single-phase voltage source. If the current flowing from the load to the source is 10<− 150°A and if the voltage at the load terminals is 100<60°V , then the
Answer : Option B
Explaination / Solution:
No Explaination.
Q2. The Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50 Hz, square-wave
ac output voltage (v0) across an R-L load. Reference polarity of v0 and reference direction of the output
current i0 are indicated in the figure. It is given that R = 3 Ω, L = 9.55 mH.
In the interval when v0 < 0 and i0 > 0 the pair of devices which conducts the load current is
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. What is the chance that a leap year, selected at random, will contain 53 Sundays?
Answer : Option A
Explaination / Solution:
There are 52 complete weeks in a calendar year = 852 × 7 =364 days
Number of days in a leap year = 366
Probability of 53 Saturdays =2/7
Q4. Square roots of − i, where i = √-1, are
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. 
In the feedback network shown below, if the feedback factor k is increased, then the
Answer : Option A
Explaination / Solution:
No Explaination.
Q6. A source vs(t) = V cos 100πt has an internal impedance of (4 + j3)Ω. If a purely
resistive load connected to this source has to extract the maximum power out of
the source, its value in Ω should be
Answer : Option C
Explaination / Solution:
No Explaination.
Q7. Two systems with impulse responses h1(t) and h2(t) are connected in cascade.
Then the overall impulse response of the cascaded system is given by
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. A 4-pole induction motor, supplied by a slightly unbalanced three-phase 50Hz source, is rotating at 1440 rpm. The electrical frequency in Hz of the induced negative sequence current in the rotor is
Answer : Option B
Explaination / Solution:
No Explaination.
Q9. The Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50 Hz, square-wave ac output voltage (v0) across an R-L load. Reference polarity of v0 and reference direction of the output current i0 are indicated in the figure. It is given that R = 3 Ω, L = 9.55 mH.
Appropriate transition i.e., Zero Voltage Switching (ZVS) / Zero Current Switching (ZCS) of the IGBTs during turn-on / turn-off is
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. Which one of the following statements is NOT TRUE for a continuous time causal and stable LTI system?
Answer : Option C
Explaination / Solution:
No Explaination.
