Beta Engineers trials

            Here is a simple, low-cost quiz table for four game participants. It determines
the contestant who first presses the switch (S1 through S4) to
answer a question and locks out the remaining three entries.
Simultaneously, the respective audio alarm sounds and the
bulb glows.
To prepare a Low cost electronic quiz table we need

• Push to ON switch
• Piezo buzzer
• Bulbs,LEDs
• Diode
• MOSFET
• Resistor & Capacitor

           The quiz table can be used for more number of contestants simply by
adding buzzers, bulbs, MOSFETs and diodes.
Besides, it provides an option for varying the time for which an individual
buzzer and the corresponding bulb should
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