Free Printable BT Y9 T2

1.

Steel is formed when iron is combined with

a)

a. Manganese

b)

b. Water

c)

c. Air

d)

d. Carbon

2.

The hardest form of steel is

a)

a. Low carbon steel

b)

b. Medium Carbon steel

c)

c. High carbon steel

d)

d. Iron ore

3.

Iron is extracted from its ore by

a)

a. Polishing the ore

b)

b. Heating the ore

c)

c. Freezing the ore

d)

d. Digging up the ore

4.

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

a)

a. Coal

b)

b. Charcoal

c)

c. Coke

d)

d. Fanta

5.

The naturally occurring mineral dug up that is made up of iron and some chemicals combined is called iron

a)

a. Ore

b)

b. Mixture

c)

c. Metal

d)

d. Stone

6.

The most common defect in wood is

a)

a. Upset grain

b)

b. Cross grain

c)

c. Shakes

d)

d. Knots

7.

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

a)

a. Branches attach to trunk

b)

b. Leaves attach to trunk

c)

c. Roots attach to trunk

d)

d. Bark peels off

8.

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

a)

a. Upset grain

b)

b. Shakes

c)

c. Knot

d)

d. Cross grain

9.

The insect attack on a growing tree is a type of

a)

a. Natural defect

b)

b. Sap sucking

c)

c. Annual ring

d)

d. Artificial defect

10.

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

a)

a. Hard board

b)

b. Laminated core

c)

c. Chip board

d)

d. Ply wood

11.

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

a)

a. Conversion

b)

b. Seasoning

c)

c. Veneering

d)

d. Manufactured board

12.

The correct equation for calculating the percentage moisture in wood is

a)

$\frac{wetweight}{wetweigth-dryweight}$

b)

$\frac{wetweight}{dryweigth-wetweight}$

c)

$\frac{wetweight-dryweight}{wetweigth}$

d)

$\frac{wetweight-dryweight}{wetweigth}$

13.

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

a)

a. 8.3%

b)

b. 9.1%

c)

c. 22.3%

d)

d. 19.3%

14.

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

a)

a. Band saw

b)

b. Hand saw

c)

c. Hammer

d)

d. Chain saw

15.

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

a)

a. Seasoning

b)

b. Conversion

c)

c. Felling

d)

d. Veneering

16.

The process of slicing wood into thin sheets is called

a)

a. Seasoning

b)

b. Conversion

c)

c. Felling

d)

d. Veneering

17.

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

a)

a. Availability in the university

b)

b. Relevance in the society

c)

c. Ability to destroy

d)

d. Area of natural interest

18.

Which of the following is not a career in engineering?

a)

a. Landscape artist

b)

b. Architect

c)

a. Marine engineering

d)

b. Aeronautic engineering

19.

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

a)

a. Tangential sawing

b)

b. Plain sawing

c)

c. Quarter sawing

d)

d. Surface butting

20.

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

a)

a. Preserve the wood

b)

b. Burn the wood

c)

c. Bend the wood

d)

d. Decorate the wood

21.

The image shown is that of a _______

a)

Bessemer converter

b)

Blast furnace

c)

Eletric arc

d)

Open hearth

22.

Fig. 1 shows the system used in _______

a)

extraction of steel

b)

milling of iron

c)

welding of steel

d)

extraction of iron

23.

The first product obtained from Fig. 1 is ______

a)

steel

b)

cast iron

c)

pig iron

d)

wrought iron

24.

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

a)

silicon

b)

oxygen

c)

water

d)

coke

25.

High carbon steel has a maximum percentage content of carbon of

a)

1.2%

b)

2%

c)

0.9%

d)

0.1%

26.

The raw materials used in plastic production are mainly from the

a)

ocean

b)

wood

c)

petroleum

d)

earth crust

27.

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

a)

charring

b)

seasoning

c)

cutting

d)

painting

28.

Which of these is not a reason for seasoning?

a)

wood preservation

b)

wood veneering

c)

making the wood lighter

d)

preparing wood for polishing

29.

An example of wooden joint and construction is the

a)

a. Railway sleepers

b)

b. Wooden crates

c)

c. Wooden staircase

d)

d. Ceramics

30.

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

a)

a. Copper

b)

b. Tin

c)

c. Lead

d)

d. Aluminum

BT Y9 T2

Total questions: 30

Worksheet time: 15mins

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