FITTING 1 HAND TOOLS - Practice Mode

1) Which fire extinguisher is used to extinguish class ?B? fire?
Correct Answer: Carbon-dioxide extinguisher
Explanation:

In a measurement instrument, the Main Scale Division (MSD) is the value of the largest division on the scale and Least Count (LC) is the smallest division on the scale that can be read with accuracy.

The number of equal parts in MSD 'n' is determined by dividing the MSD by the least count.

Given that one MSD = 2 mm and least count = 0.20 mm, To find the number of equal parts in the MSD, you can use the following formula:

Number of equal parts = MSD / least count = 2 mm / 0.20 mm = 10 parts

Therefore, there are 10 equal parts in the MSD 'n' in this case. This means that the scale is divided into 10 equal parts, each one with a value of 0.2 mm.

2) Which fire extinguisher is used for flammable and running liquid fire?
Correct Answer: Foam extinguisher
Explanation:

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3) What is the material for body of bench vice?
Correct Answer: Cast iron
4) Which vice has movable jaw that works vertically?
Correct Answer: Pipe vice
5) What is the accuracy of steel rule?
Correct Answer: 0.5mm
Explanation:

According to Indian standards, the standard size of bricks as set by Bureau of Indian Standards (BIS) is 190mm x 90mm x 90mm (length x width x height) . This size is known as the modular brick size and is widely used in construction across India. 

However, in some region of India, depending on the local tradition, practice and availability the size may vary.