Time Left - 20:00 mins
GATE 2019: Topper Quiz 7 (App update required to attempt this test)
Attempt now to get your rank among 383 students!
Question 1
Find the power observed by the load in kW. Assume RYB phase sequence if the balanced start connected load having an impedance (15+j20)Ω per phase is connected to a three phase440V, 50 Hz supply?
Question 2
If F1(s)= 
; and F2(s)= 
. What is the inverse Laplace transform F(t) of the product of both functions?
; and F2(s)= . What is the inverse Laplace transform F(t) of the product of both functions?Question 3
What is the open loop DC gain of a unity feedback control system having closed loop transfer function is (s + 4)/(s ² + 7s +13) ?
Question 4
For the logic circuit shown in the figure, the output Z equal to
Question 5
In the op-amp circuit shown, the Zener diodes Z1 and Z2 clamp the output voltage Vo to +5 V or -5V. The switch S is initially closed and is opened at time t=0
The time t = t1 (in seconds) at which Vo changes state is ____
The time t = t1 (in seconds) at which Vo changes state is ____
Question 6
A single-phase bi-directional voltage source converter (VSC) is shown in the figure below. All devices are ideal. It is used to charge a battery at 400 V with power of 5 kW from a source Vs= 220 V(rms), 50 Hz sinusoidal AC mains at unity p.f. If its AC side interfacing inductor is 5 mH and the switches are operated at 20 kHz, then the phase shift (δ) between AC mains voltage (Vs) and fundamental AC rms VSC voltage, (Vc1) in degree, is________.
Question 7
Form the y- bus matrix for the network shown in figure.
Question 8
An alternator has an internal voltage of E1 = 1.8 p.u. and X = 0.8 p.u. is connected to a synchronous motor with internal voltage of E2 = 1.2 p.u. and X = 0.6 p.u. The reactance of the line connecting the alternating to the motor is 0.4 p.u. When the generator supplies 1 p.u. power Calculate the rotor angle (in Degree) difference between two machines –
Question 9
The coils of a wattmeter have resistances 0.01 Ω and 1000 Ω; their inductance may be neglected. The wattmeter is connected as shown in the figure, to measure the power consumed by a load, which draws 25 A at power factor 0.8. The voltage across the load terminals is 30 V. The percentage error on the wattmeter reading is _________.
Question 10
Consider points P and Q in the x-y plane, with 
and 
the line integral 
along with the semicircle with the line segment PQ as its diameter is ________.
and the line integral along with the semicircle with the line segment PQ as its diameter is ________.- 383 attempts
- 1 upvote
- 4 comments
Tags :
ESE & GATE EEGeneralJun 15ESE & GATE EE
