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 Customer Service Advisor Job Interview Questions And Answers
Top Customer Service Advisor Questions:
☺ | Tell me about the last time you had to work with someone inside or outside of your department to accomplish a goal? |
☺ | What classes did you enjoy most in college and why? |
☺ | What do you feel you deserve to be paid? |
☺ | What is the most important lesson / skill you've learned from school? |
☺ | Describe yourself in three words? |
Top Customer Services Categories
☺ | WASH (Water, Sanitation, and Hygiene) Officer Interview Questions. |
☺ | Customer Relationship Officer Interview Questions. |
☺ | Humanitarian Affair Officer Interview Questions. |
☺ | Motorway Police Interview Questions. |
☺ | Janitor Interview Questions. |