BE Electronics Engineering

BE Electronics Engineering Quiz

124

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BE Electronics Engineering Quiz

1 / 25

Which combinations has no phase inversion of the signal :-

2 / 25

In CE mode, leakage current is low;-

3 / 25

Leakage  current  flows  through the thyristor  in :-

4 / 25

Forward bias is applied to an NPN transistor by + voltage to the emitter and -voltage to the base:-

5 / 25

The mean life time of the minority carriers is in the range of a few:-

6 / 25

The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rise to _________ percent of its maximum value;-

7 / 25

The ripple factor for a full wave rectifier is:-

8 / 25

Which element does not have five valence electrons:-

9 / 25

In case of indirectly heated tubes the heater filament is made of:-

10 / 25

A keeper is used to:-

11 / 25

Which  measurement  considers  phase  as an  important  parameter:

12 / 25

For insulators the energy gap of the order is:-

13 / 25

Which material has the highest value of dielectric constant:-

14 / 25

CE circuit has input signal to the base and output from the collector:-

15 / 25

The negative feedback  in an  amplifier  reduces  voltage  gain;-

16 / 25

Which rectifier needs four diodes:-

17 / 25

The SCR is a silicon diode rectifier with a gate control electrode:-

18 / 25

When both the inductance and resistance of a coil are doubled the value of time constant:-

19 / 25

Which  filter  has maximum  flatness :-

20 / 25

The  auto  starters   can be used  to start  cage  induction motor  of the  _________ type :-

21 / 25

The  weighing  matrix  is :-

22 / 25

Isolation amplifier  are  also  called as ;-

23 / 25

Which one is a acceptor impurity element:-

24 / 25

A thyristor  is  basically  ;

25 / 25

All the elements have three valence electrons except:-