Which of the following statements with regard to fuses are correct ?

1. Fuses are simple switches required to activate an explosive device
2. The three main types of fuses are time delay, physical action, and environment
3. Good example of time delay fuses are chemical pencils

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1, 2 and 3

1 and 2 only

2 and 3 only

1 and 3 only

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC CISF-AC-EXE – 2023

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The correct option is A, as statements 1, 2, and 3 are all correct regarding fuses.

Statement 1 is correct: Fuses initiate explosive devices, acting as a switch to trigger the main charge. Statement 2 is correct: Fuses are broadly categorized by their activation mechanism, including time delay (activated after a set period), physical action (activated by pressure, pull, etc.), and environment (activated by changes in light, temperature, etc.). Statement 3 is correct: Chemical pencils are a type of improvised time-delay fuse where a chemical reaction eats through a restraining material over time, releasing a firing pin or activating mechanism.

Fuses are critical components in ordnance and improvised explosive devices (IEDs), determining when and how the device functions. Understanding different types of fuses is important for counter-terrorism and bomb disposal operations.

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