Which of the following chemicals is the most useful in iron extraction in the blast furnace?

The most common defect in wood is

Knot is a wood defect which occurs at a point where _________

The stress applied on a tree while it is still growing leads to the formation of

The insect attack on a growing tree is a type of

Which of the following manufacture board is made from compressed sawdust?

The method of removing moisture from a freshly cut wood is called

The correct equation for calculating the percentage moisture in wood is

Calculate the percentage moisture in a wood whose wet weight is 360N and weight when dry is 330N.

Which of the following machines is the most appropriate for tree felling

The wood process method in which the felled log is cut into small marketable sizes is called

The process of slicing wood into thin sheets is called

To choose a career, all students must look for all of the following except

Which of the following is not a career in engineering?

During conversion process, the log is sliced along the parallel grains. This type of conversion is called the

In the charring process, the surface of a wood is burnt slightly and the charcoal is left on the surface. This is to

The image shown is that of a _______

Fig. 1 shows the system used in _______

The first product obtained from Fig. 1 is ______

The major chemical used in the system shown in Fig. 1 is called ______

High carbon steel has a maximum percentage content of carbon of

The raw materials used in plastic production are mainly from the

Whch of the following is not a method of wood preservation?

Which of these is not a reason for seasoning?

An example of wooden joint and construction is the

The major non – ferrous metal used in making drink cans is the