because spanner has a longer moment arm and torque depends upon moment arm greater the moment greater will be the torque produced so it is easy to unscrew a tight nut using longer spanner
The mechanic would get more leverage. The rotational force applied to the nut is greater the longer the spanner, assuming the mechanic applies the same amount of force.
To effectively loosen a tight screw, you can try using a screwdriver with a good grip and turning it counterclockwise with steady pressure. Applying lubricant like WD-40 or tapping the screw lightly with a hammer can also help loosen it. If the screw is still stuck, heating it with a hairdryer or a soldering iron can expand the metal and make it easier to turn.
This answer is based on simple mechanics. A spanner is a tool which you use to apply a twisting force on a nut. This twisting force is called a Moment. The equation for a moment: moment = force x distance of application As the force given by your arms will not increase just by using a bigger spanner, the size of the moment is directly related to the distance away from the nut the force is applied. So with a short spanner, say 30cm (0.3 metres) long and a typical force from your arm of about 100N (about 10kg) the moment will be: Moment = 100 x 0.3 = 30 Nm Now if a bigger spanner is used, say 50 cm (0.5 metres) long the moment is: Moment = 100 x 0.5 = 50 Nm So you can see if you use a bigger spanner, you are putting a larger twisting force upon the nut, so it it easier to loosen.
To effectively loosen tight screws, you can use a screwdriver with a good grip and apply steady pressure while turning it counterclockwise. You can also try using penetrating oil or heat to help loosen the screw.
A long-arm spanner provides greater leverage, making it easier to apply more force to the nut with less effort. This increased leverage allows the user to generate more torque, which makes it easier to tighten the nut effectively. Conversely, a short-arm spanner provides less leverage, requiring more effort to generate the same amount of torque.
To loosen a tight screw that seems stuck, you can try using a lubricant like WD-40 or penetrating oil to help loosen the screw. You can also try tapping the screw lightly with a hammer to help break up any rust or debris that may be causing it to stick. Additionally, using a screwdriver with a better grip or applying heat with a hairdryer can also help loosen a stubborn screw.
Using a shallow electrical box for installing fixtures in tight spaces provides easier installation, saves space, and reduces the risk of damaging wires.
To extract a stuck screw in a tight space, you can try using a screwdriver with a good grip, applying lubricant to the screw, using a screw extractor tool, or heating the screw with a hairdryer to loosen it. Be patient and careful to avoid damaging the screw or surrounding materials.
Using a screwdriver as a lever increases the force applied to the lid of the paint can, making it easier to overcome the resistance and open the can. The lever allows you to exert more torque or rotational force, which helps to loosen the lid.
The standard removal technique is to tap the bung with a hammer to loosen it and try to remove it with a single hex spanner or socket, if this does not work try to use a screwdriver in the centre at the same time as using the spanner. It is common for the bung to become stuck if it is done up too tight, if this is the case chisel the bung from the side. The bung will break in half and the tension will be released from the thread and the remainder will unscrew with your hand. If you do this you will obviously need to buy a new bung, I suggest you buy a brass one from a radiator shop. Katie
A wallpaper remover steamer can make the process of removing wallpaper easier and faster by using steam to loosen the adhesive, making it easier to peel off the wallpaper. This can save time and effort compared to traditional methods like scraping or using chemicals.
Plumbing pipe dope is used to seal and lubricate threaded connections in plumbing systems. It helps create a tight seal to prevent leaks and also makes it easier to tighten and loosen connections. The purpose of using pipe dope is to ensure a secure and leak-free connection in plumbing systems.