A Fuse is used in mains electric supply as a safety devices. Which one of the following statements about the fuse is correct?

A Fuse is used in mains electric supply as a safety devices. Which one of the following statements about the fuse is correct? Correct Answer It must have a low melting point

Bissoy MCQ

Related Questions

A fuse is used in main electric supply as a safety device. Which one of the following statements about the fuse is correct?
For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having
Examine the following statements :
i) Factor of safety for steel should be based on its yield stress,
ii) Factor of safety for steel should be based on its ultimate stress,
iii) Factor of safety for concrete should be based on its yield stress,
iv) Factor of safety for concrete should be based on its ultimate stress.
The correct statements are
Two horizontal steam mains with diameters 5 cm and 15 cm are to be laid in a boiler house that any mutual heat effect is precluded. The mains are at the same surface temperature of 500 degree Celsius whilst the ambient air is at 50 degree Celsius. Workout the ratios of the heat transfer coefficients
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In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.
Statement I:
All mobiles are phones Statement II:
All phones are devices
Conclusion I:
Some phones are devices Conclusion II:
No devices are phones
In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains
Which of the following statements are correct?
1. In 2003 the ILO adopted a global strategy to improve occupational safety and health which included the introduction of a preventive safety and health culture.
2. It has adopted more than 40 standards specifically dealing with occupational safety and health, as well as over 40 Codes of Practice.
3. ILO's Codes of Practice are not legally binding instruments.
4. ILO's Codes of Practice are not intended to replace the provisions of national laws or regulations, or accepted standards.
Which of the following statements are correct?
1. ILO's Occupational Safety and Health Convention, 1981 is convention No. 155.
2. Occupational Health Services Convention, 1985 (No. 161) provides for the establishment of enterpriselevel occupational health services.
3. Promotional Framework for Occupational Safety and Health Convention, 2006 is Convention No 172.
4. The national policy shall be developed in accordance with the principles of Article 2 of the Occupational Safety and Health Convention, 1981.
Which of the following option is true for given statements about automatic inspection machines? Statement 1: Safety devices are incorporated to avoid damage to the gauging fixture. Statement 2: Gauging devices entering the part is positively pushed.