Electrical Engineering Mcqs — Test 90
Page 1 of 3
Question 1
In a regulated power supply, two similar 15 V zeners are connected in series. The input voltage is 45 V d.c. If each Zener has a maximum current rating of 300 mA, what should be the value of the series resistance ?
Question 2
A power supply has a voltage regulation of 1%. If the no-load voltage is 20 V, what is the full-load voltage ?
Question 3
A relay is ___________switch?
Question 4
The switch that has the fastest speed of operation is ____________ switch?
Question 5
The main disadvantage of a mechanical switch is that it_______________?
Question 6
The maximum speed of electronic switch can be _____________operations per second?
Question 7
A switch has ______________?
Question 8
The most inexpensive switch is _____________ switch?
Question 9
When a transistor is driven to saturation, ideally the output is _____________?
Question 10
______________ multivibrator is a square wave oscillator?