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BARC EE : Full Syllabus Test - 21
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Question 1
A 24-slot, 2-pole, lap-would dc machine has 18 turns per coil. The average flux density per pole is 1 Tesla. The effective length of the machine is 20 cm and the radius of the armature is 10 cm. The magnetic poles cover 80% of the armature periphery. For armature angular velocity (ωm) of 183.2 rad/se, the induced emf in the armature winding is nearly
Question 2
Which of the following are the objectives of a data acquisition system?
1) It must acquire necessary data at correct speed and time.
2) It must collect and store data.
3) There should be provision for real-time data display.
4) There should be provision for stored data display on request.
1) It must acquire necessary data at correct speed and time.
2) It must collect and store data.
3) There should be provision for real-time data display.
4) There should be provision for stored data display on request.
Question 3
A single phase full converter RL load is operating as a firing angle of 30° and an extinction angle of 200°. This angle for which free-wheeling diode operate in one cycle of input supply will be.
Question 4
1-ϕ dual converter has 1 unit working with firing angle of 60° and the other unit works as _______ at an angle of _______.
Question 5
Amplitude modulation is used for broadcasting because
Question 6
Find Vo if 3 mV, 2 kHz sinusoidal Signal is applied at input terminal. If R = 5 kΩ & C = 5 μF
Question 7
The Fourier transform of signal te–tu(t) is
Question 8
A flip flop is also called as
Question 9
A shunt reactor is operating for 0.98 times of its rated voltage and 0.96 times of its rated frequency. The reactive power absorbed by reactor ________ MVAr, if rating of shunt reactor is 100 MVAr.
Question 10
Which of the following bridge is used for the measurement of frequency?
Question 11
Which of the following is incorrectly method?
Question 12
What will be the magnetic potential difference across the air gap of 4 cm length in magnetic field of 200 AT/m?
Question 13
In the circuit shown below, the transistor parameters are VTh = 0.5 V and μnCox = 200 μA/V2 and it operates on the verge of saturation, then W/L is
Question 14
The output ripple voltage in a buck dc-dc converter is calculated from:
Question 15
For induction motor, delta connected develops:
(i) Full load Torque = 40 Nm
(ii) Starting Torque = 80 Nm
Now, the motor changed to star connected, its starting torque developed in Nm, (Consider same supply voltage).
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ESE & GATE EEGeneralSep 14ESE & GATE EE