NSO Level 1- Science Olympiad (SOF) Class 8: Questions 1046 - 1049 of 1178

Choose Programs:

📹 Video Course 2024 (13 Lectures [7 hrs : 26 mins]): Offline Support

Rs. 100.00 -OR-

1 Month Validity (Multiple Devices)

Preview All LecturesDetails

🎓 Study Material (43 Notes): 2024-2025 Syllabus

Rs. 100.00 -OR-

3 Year Validity (Multiple Devices)

Topic-wise Notes & SampleDetails

🎯 1178 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)

Rs. 450.00 -OR-

3 Year Validity (Multiple Devices)

CoverageDetailsSample Explanation

Help me Choose & Register (Watch Video) Already Subscribed?

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

Edit

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.

Edit

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

Edit

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?

Image Shows Tools Kit A
Image Shows Tools Kit B

Choices

Choice (4)Response

a.

Kit A

b.

Kit A and Kit B

c.

Kit B

d.

All of the above

Edit