NSO Level 1- Science Olympiad (SOF) Class 8: Questions 1046 - 1049 of 1178
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Question 1046
Question MCQ▾
Three pin plugs are safer than two pin plugs in electric appliances
The reason is
Choices
Choice (4) | Response | |
---|---|---|
a. | This helps to protect the electrical appliance from short circuit and Damage | |
b. | The third pin represents neutral point and is meant for ear thing. | |
c. | Three pin plugs have positive, negative and neutral points. | |
d. | All a., b. and c. are correct |
Question 1047
Question MCQ▾
Electricians always use rubber slippers while doing their work. The reason is
Choices
Choice (4) | Response | |
---|---|---|
a. | Rubber is a good insulator. | |
b. | Rubber is neither a conductor nor an insulator. | |
c. | Rubber slippers provide grip while working. | |
d. | Rubber is a good conductor of electricity. |
Question 1048
Question MCQ▾
Payal wanted to test the presence of electric current in a circuit using an LED. She is confused about the anode and cathode of the diode. The correct hint to identify the terminals is
Choices
Choice (4) | Response | |
---|---|---|
a. | Any lead can be connected to cathode | |
b. | The longer lead represents cathode | |
c. | The longer lead represents anode | |
d. | Question does not provide sufficient data or is vague |
Question 1049
Question MCQ▾
Sheena wants to do some experiments in electricity topic. Which tool kit will help her to test the presence of electric current in an electric circuit?
Choices
Choice (4) | Response | |
---|---|---|
a. | Kit A | |
b. | Kit A and Kit B | |
c. | Kit B | |
d. | All of the above |