Why is a long spanner used to tighten a nut?

Because the longer the spanner is , the more is the perpendicular distance between the axis of spanner through which it rotates and the distance of your hand. And when perpendicular distance is more, less force is required. Try using the spanner by holding it with ur hand kept near the nut.

What does a mechanic use to tighten nuts?

Wrenches are used to tighten and loosen fasteners, mainly nuts and bolts. Wrenches are generally made from a chrome-plated steel alloy. The material makes wrenches both durable and simple to clean.

What do you tighten with a spanner?

What is a Wrench/Spanner Used for? Spanners come in many types and sizes for a variety of different tasks and are an indispensable part of any toolbox. Used to loosen or tighten nuts, bolts, pipes and pipes fittings they prove their usefulness many times over.

Why is it easier to undo a nut fastened to a screw using a spanner than by hand?

When undoing a nut fastened to a screw by hand one realises that the amount of force required is a lot greater than when undoing the same nut using a spanner. The spanner increases the distance between the fulcrum and the line of action of the force, thus for the same force a greater moment is obtained.

Why is it easier to use a longer spanner?

If a nut is difficult to undo with a short spanner, a longer spanner will help. This is because there will be a bigger moment on the nut, when the same force is applied further from the pivot.

Why a long spanner is used?

(i) Spanner has a long handle to produce larger turning moments when a small force is applied at the handle end. (ii) The steering wheel is of large diameter to decrease the amount of force required to produce the turning effect.

How is bolt torque required?

DETERMINING TORQUE The general equation for bolt load based on applied torque is T = KFiDb where K = torque coefficient. K is a function of the coefficients of friction and collar friction in the joint, and these are based on variables such as surface finish, coatings, and so on.

How do you tighten a nut with a wrench?

Slip the open jaw over the nut and hold it in place. Turn the screw mechanism so that it clamps tightly around the nut. Turn the wrench in a clockwise direction to tighten it, or counter-clockwise to loosen it. Keep on turning it until the nut is tight or loose enough to remove.

What is turning effect in physics?

A force may cause an object to turn about a pivot. The turning effect of a force is called the moment of the force. Moments act about a pivot in a clockwise or anticlockwise direction. The anticlockwise moment acts downward on the left, and the clockwise moment acts downwards on the right.

Are Moments forces?

A force or system of forces may cause an object to turn. A moment is the turning effect of a force. Moments act about a point in a clockwise or anticlockwise direction.