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 Cane Flume Feeding Machine Operator Job Interview Questions And Answers
Top Cane Flume Feeding Machine Operator Questions:
| ☺ | What have you done to reduce costs, increase revenue, or save time? |
| ☺ | Describe to me the position As Cane Flume Feeding Machine Operator you're applying for? |
| ☺ | Do you think you have enough experience As Cane Flume Feeding Machine Operator? |
| ☺ | Do you like being around people? |
| ☺ | Did you get on well with your last manager? |
Top Technical Support Engineer Categories
| ☺ | Instrumentation Interview Questions. |
| ☺ | CCTV Operator Interview Questions. |
| ☺ | Solar Panel Technician Interview Questions. |
| ☺ | Data Entry Operator (DEO) Interview Questions. |
| ☺ | Instrumentation Specialist Interview Questions. |
