Electrical Engineering - Online Test
Q1. 
The steady state error of a unity feedback linear system for a unit step input is 0.1. The steady state error of the same system, for a pulse input r(t) having a magnitude of 10 and a duration of one second, as shown in the figure is
Answer : Option A
Explaination / Solution:
Q2. 
In the circuit given below, the value of R required for the transfer of maximum power to the load having a resistance of 3W is
Answer : Option A
Explaination / Solution:
Q3. In delta modulation, the slope overload distortion can be reduced by
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. A single phase air core transformer, fed from a rated sinusoidal supply, is operating at no load. The steady state magnetizing current drawn by the transformer from the supply will have the waveform
Answer : Option C
Explaination / Solution:
It is an air core transformer. So, there is no saturation effect.
Q5. For enhancing the power transmission in along EHV transmission line, the most preferred method is to connect a
Answer : Option C
Explaination / Solution:
Q6. The function f(x) = 2x - x2 - x3 + 3 has
Answer : Option C
Explaination / Solution:
Q7. A portion of the main program to call a subroutine SUB in an 8085 environment is given below.
:
:
LXI D,DISP
LP : CALL SUB
:
It is desired that control be returned to LP+DISP+3 when the RET instruction is executed in the subroutine. The set of instructions that precede the RET instruction in the subroutine are
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. The transistor used in the circuit shown below has a β of 30 and ICBO is negligible
If the forward voltage drop of diode is 0.7V, then the current through collector will be
Answer : Option D
Explaination / Solution:
Q9. A 
digit DMM has the error specification as : 0.2% of reading + 10 counts. If a dc voltage of 100V is read on its 200V full scale, the maximum error that can be expected in the reading is
digit DMM has the error specification as : 0.2% of reading + 10 counts. If a dc voltage of 100V is read on its 200V full scale, the maximum error that can be expected in the reading is
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. P is a 16-bit signed integer. The 2’s complement representation of P is (F87B)16.
The 2’s complement representation of 8*P is
Answer : Option A
Explaination / Solution:
No Explaination.
