TRB exam online practice test for Electrical and Electronics Engineering dept provides you with ample practice material for TRB exam preparation for cse department which adheres to the real exam format. Each TRB - EEE exam practice test has 10 questions. After completing click on to the COMPLETE TEST to know the score and the correct answers.


Electrical and Electronics Engineering - TRB Online Practice Test - 1

  • Online Practice Test - EEE
   

1.
  Transient current in a RLC circuit is oscillator when? .
  • A.   R = 2 √(L/C)
  •  
  • B.   R = 0
  •  
  • C.   R >2 √(L/C)
  •  
  • D.   R <2 √(L/C)
  Options: A    B    C    D   
   
 
   

2.
  The Laplace transform of a signal is (S3-1)/(S2+ S+1) . The number of Zeros located at infinity is:.
  • A.   1
  •  
  • B.   -1
  •  
  • C.   0
  •  
  • D.   2
  Options: A    B    C    D   
   
   

3.
  The discrete ‐ time fourier transform of x(n) = (0.5)n. u(n) +2‐n u(-n-1)is: .
  • A.   0.75/(0.25-cosw)
  •  
  • B.   0.75/(1.25-cosw)
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  • C.   0.75/( 1 -cosw)
  •  
  • D.   0.75/(1+ cosw)
  Options: A    B    C    D   
   
 
   

4.
  Consider a continuous - time LTI system whose frequency response is $$H(j\omega ) = \int\limits_\infty ^{ - \infty } h (t).{e^{ - j\omega t}} = {{sin4\omega } \over \omega }$$. If the input to this system is a periodic signal $$x(t)\,\left\{ \matrix{ 1{\rm{ }};\;\;\;\;\;0 \le \;\,t < 4 \hfill \cr - 1;\,\,\,\,\,4 \le t < 8 \hfill \cr} \right\}\,\,\,$$ with period T =8, determine the output y (t).
  • A.   $$x(t)\,\left\{ \matrix{ {\rm{4 }};\;\;\;\;\;0 \le \;\,t < 4 \hfill \cr - 3;\,\,\,\,\,4 \le t < 8 \hfill \cr} \right\}\,\,\,$$
  •  
  • B.   $$\sin \omega t$$
  •  
  • C.   Zero
  •  
  • D.   $$x(t)\,\left\{ \matrix{ {\rm{2 }};\;\;\;\;\;1 \le \;\,t < 5 \hfill \cr - 1;\,\,\,\,\,4 \le t < 8 \hfill \cr} \right\}\,\,\,$$
  Options: A    B    C    D   
   
   

5.
  In shell type transformer, the outer limb carries _______________ amount of flux (Total flux is A.) .
  • A.   $${A \over 3}$$
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  • B.   $${A \over 2}$$
  •  
  • C.   $${A \over 4}$$
  •  
  • D.   $$A$$
  Options: A    B    C    D   
   
 
   

6.
  The torque produced by single phase induction motor fed through ac voltage controller for speed control is due to :.
  • A.   Fundamental component of current and both even and odd harmonics
  •  
  • B.   Fundamental component and even harmonics of current
  •  
  • C.   Fundamental component and odd harmonics of current
  •  
  • D.   Fundamental component of current alone
  Options: A    B    C    D   
   
   

7.
  What is the voltage of a battery that uses 800 J of energy to move 40 C of charge through a resistor?.
  • A.   800 V
  •  
  • B.   40 V
  •  
  • C.   25 V
  •  
  • D.   20 V
  Options: A    B    C    D   
   
 
   

8.
  If $${Z_{11}} = 2\Omega ;{Z_{12}} = 1\Omega ;{Z_{21}} = 1\Omega ;and\,{Z_{22}} = 3\Omega ;$$ what is the determinant admittance matrix?.
  • A.   $$5$$
  •  
  • B.   $${1 \over 5}$$
  •  
  • C.   $$1$$
  •  
  • D.   $$3$$
  Options: A    B    C    D   
   
   

9.
  $$A\,330\Omega $$ resistor is in series with the parallel combination of four $$1K\Omega $$ resistors. A 100 V source is connected to the circuit. Which resistor has the most current through it ?.
  • A.   $$330\Omega $$ resistor
  •  
  • B.   Parallel combination of three $$1K\Omega $$ resistors.
  •  
  • C.   Parallel combination of two $$1K\Omega $$ resistors.
  •  
  • D.   One $$1K\Omega $$ resistors
  Options: A    B    C    D   
   
 
   

10.
  Resolution of a measuring instrument is defined as :.
  • A.   Ability to reproduce the output in the same form as input
  •  
  • B.   Ratio of the change of output signal to the change of input signal
  •  
  • C.   The smallest measurable input change
  •  
  • D.   Consistency of the reproducing ability
  Options: A    B    C    D   
   

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