Suppose there are three light switches outside a room. Inside is a single light bulb, controlled by one of the three switches. You need to determine which switch operates the bulb. You can turn the switches on and off as many times as you wish (they are all off to begin with), but may only enter the room once. There is no one there to help you. The door to the room is closed, and there are no windows, so you cannot see inside. How can you discover which switch operates the bulb?
Submitted by: AdministratorDo the following steps:
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
Read Online Machine Operator Fish Products Job Interview Questions And Answers
Top Machine Operator Fish Products Questions:
☺ | Explain an idea that you have had and have then implemented in practice? |
☺ | What features of your previous jobs have you disliked? |
☺ | Top 11 Interview Questions to Ask when Emotional Intelligence Matters As Machine Operator Fish Products: |
☺ | If you have seven white socks and nine black socks in a drawer, how many socks do you have to pull out blindly in order to ensure that you have a matching pair? |
Top Livestock Categories
☺ | Dairy Farm Interview Questions. |
☺ | Poultry Farm Interview Questions. |
☺ | Horticulturist Expert Interview Questions. |
☺ | Aquaculture Farming Interview Questions. |
☺ | Dairy Chemist Interview Questions. |