BASIC TECHNOLOGY FIRST TERM EXAMINATION JSS 3

      FIRST 

Examination malpractices may lead to a repeat of the subject or suspensions don’t be involved.

SUBJECT: BASIC TECHNOLOGY          TIME: 1HR 30MINS  CLASS: JSS  3

1. _______________ is the process of splitting on cutting wood into commercial or marketable sizes. (a) Latex (b) synthetic   (c) wood conversion    (d) wood treatment.
2. _______________ is the process of removing excess water in wood. (a) Wood treatment (b) wood seasoning (c) wood pressure (d) wood immersion.
3. Wood preservation is the process of prolonging the life span of wood by applying__________(a) Preservatives  (b) latex (c) synthetic (d) glue
4. We have natural method of wood seasoning and __________ of wood seasoning (a) Kiln method (b) furnace method (c) heating method (d) pressure method.
5. We have tangential sawn method, quarter sawn method and _____________ methods of wood conversion. (a) Tangent (b) polygon (c) plain sawn (d) smooth sawn.
6. _____________ can be defined as excess water in wet wood (a) mass content   (b) carbon consent (c) manmade consent (d) moisture consent.
7. Any feature that reduces the quality and market value of timber is called___________(a) seasoning (b) conversion (c) preservation  (d) defects
8. Man – made wood products that vary in size , weight and structure is called (a)  manufactured broad (b) synthetic broad (c) adhesive broad (d) ceramics broad.
9. Mixture of two or more metals to forms one metal is called(a) alloy  (b) smelting (c) casting (d) iron – ore.
10. Ferrous metals contains ____________(a) latex  (b) ceramics (c) thermoset    (d) iron.

11.A country with an under – developed technology make use of _____________(a) Telephone for communication (b) Fertilizer for farming (c) drying for preservation of grains (d) refrigerator  for preserving grains.

12. The following are preventive maintenance, except (a) inspection (b) adjustment (c) repair (d) lubrication.
13. All these convert electrical energy into mechanical energy except (a) electric blender (b) table fan (c) ceiling fan (d) electric pressing iron.
14. Which of the following googles is used when carrying out are welding?(a) reflective googles  (b) Plain googles (c) dark googles (d) yellow googles 
15. Ceramic articles are made from _____________(a) mud and clay only (b) cement and mud only (c) cement and glass only (d) cement , mud and clay.
16. Which of the following is a measuring tool?(a) scriber  (b) screwdriver (c) try square  (d) mallet.
17. All of these are methods of processing plastic except (a) calendaring (b) extrusion (c) rolling (d) vacuum forming 

18._______________ is the source of all the metals (a) iron ore (b) alloy (c) Adhesives  (d) abrasives (e) 

Briltienes 

19. Which of the following drawing instruments is used for drawing vertical and diagonal (inclined) lines (a) steel (b) tee – square (c) try square (d) set square
20. The process of doing things with machine is called (a) advanced process (b0 manual process (c0 mechanized process (d) skilled process 
21. A plane is a wood work tool used for ______________(a) smoothening (b) cutting (c) clamping (d0 filling
22. All the following are method of applying preservatives except (a) spraying (b) painting (c) digging (d) brushing 
23. The binding agent in concretes is__________ (a) cement (b) gravel (c) sand (d) clay.
24. A process of enlarging or reducing  the size of drawing known as_______________(a) free hand sketching (b) isometric (c) orthographic (d) scale drawing 
25. The following are permanent methods of joining metals except (a) bolts and nut (b) welding (c) soldering (d) riveting
26. Which of these instrument can be found for measuring current, voltage and resistance.(a) voltmeter (b) multimeter (c)ammeter (d) potentio meter
27. The following are natural defects in timber, except (a) insect attack  (b) Heart shake (c) knot (d) twist 
28. The stock and the blade of a tee – -square form angle of _______________(a) 30o (b) 60o (c) 90o (d)180o

29.Decidous trees are trees with_____________(a)flat stem (b) needle like leaves (c)broad leaves (d) ever green leaves

30. A process of drawing without the aid of any instrument is called _______________(a) free hand  sketching (b) isometric drawing (c) scale drawing (d) perspective drawing 

31 Which of the following instrument s is used to measure resistance in electric circuit?(a) ammeter (b) hydrometer (c) ohmmeter (d) micrometer 

32. The unit of current is (a) ampere (b) joules (c) Newton (d) watts 
33. E. M .F means (a) electromotive force (b) electric movement force (c) e – mail force 
34. All of the following products are made from ceramics except (a) blocks (b) cups (c) pots (d) table 
35. The instrument used for transfer of measurements in drawing is called (a) micrometer (b) protector (c) divider (d) calipers 
36. The tee square is used to draw _________ lines (a) curved (b) inclined (c) vertical (d) horizontal
37. Coniferous trees are also referred to as _______(a) bark (b) dry (c) fresh (d) soft 
38. A professional that is responsible for the preparation of building plans is _________ (a) architect (b) Civil engineer (c) clerk of work (d) quantity surveyor (e) structural engineer.
39. The repair work carried out when equipment has broken down is called __________maintenance (a) corrective (b) predictive (c) preventive (d) periodic
40. Metals are basically classified into ___ and ____(a) ferrous ,non ferrous (b) lustrous,non-lustrous (c) malleable , ferrous (d) sheet, base.

THEORY :Answer only three questions 

Question 5 is compulsory 

1a.Explain the following :

1. Wood conversion
2. Wood  seasoning
3. Wood preservation

1. Differentiate between natural method and kiln seasoning

2a.Calculate the percentage moisture content of a sample of wood that weighs  80kg  before and 50kg after drying.

1. Differentiate between natural defects and artificial defects.

3a. Explain the following

1. Extraction of metals
2. Smelting
3. Casting 

1. Differentiate between the pinch method and the potter’s wheel method in processing ceramics
2. Sketch and explain the uses of five workshop hard tools.
3. Draw this isometric block.

    40mm

    40mm

    20mm    40mm

    20mm

    60mm

    40mm

1. _______________ is the process of splitting on cutting wood into commercial or marketable sizes. (a) Latex (b) synthetic   (c) wood conversion    (d) wood treatment.
2. _______________ is the process of removing excess water in wood.(a) Wood treatment (b) wood seasoning (c) wood pressure (d) wood immersion.
3. Wood preservation is the process of prolonging the life span of wood by applying__________(a) Preservatives  (b) latex (c) synthetic (d) glue
4. We have natural method of wood seasoning and __________ of wood seasoning (a) Kiln method (b) furnace method (c) heating method (d) pressure method.
5. We have tangential sawn method, quarter sawn method and _____________  methods of wood conversion.(a) Tangent (b) polygon (c) plain sawn (d) smooth sawn.
6. _____________ can be defined as excess water in wet wood (a) mass content   (b) carbon consent (c) manmade consent (d) moisture consent.
7. Any feature that reduces the quality and market value of timber is called___________(a) seasoning (b) conversion (c) preservation  (d) defects
8. Man – made wood products that vary in size , weight and structure is called (a)  manufactured broad (b) synthetic broad (c) adhesive broad (d) ceramics broad.
9. Mixture of two or more metals to forms one metal is called(a) alloy  (b) smelting (c) casting (d) iron – ore.
10. Ferrous metals contains ____________(a) latex  (b) ceramics (c) thermoset    (d) iron.

11.A country with an under – developed technology make use of _____________(a) Telephone for communication (b) Fertilizer for farming (c) drying for preservation of grains (d) refrigerator  for preserving grains.

12. The following are preventive maintenance ,except (a) inspection (b) adjustment (c) repair (d)lubrication .
13. All these convert electrical energy except (a) electric blender (b) table fan (c) ceiling fan (d) electric pressing iron.
14. Which of the following googles is used when carrying out are welding?(a) reflective googles  (b) Plain googles (c) dark googles (d) yellow gooogles 
15. Ceramic articles are made from _____________(a) mud and clay only (b) cement and mud only (c) cement and glass only (d) cement , mud and clay.
16. Which of the following is a measuring tool?(a) scriber  (b) screwdriver (c) try square  (d) mallet.
17. All of these are methods of processing plastic except (a) calendaring (b) extrusion (c) rolling (d) vacuum forming 

18._______________ is the source of all the metals (a) iron ore (b) alloy (c) Adhesives  (d) abrasives (e) 

Briltienes 

19. Which of the following drawing instruments is used for drawing vertical and diagonal (inclined) lines (a) steel (b) tee – square (c) try square (d) set square
20. The process of doing things with machine is called (a) advanced process (b0 manual process (c0 mechanized process (d) skilled process 
21. A plane is a wood work tool used for ______________(a) smoothening (b) cutting (c) clamping (d0 filling
22. All the following are method of applying preservatives except (a) spraying (b) painting (c) dipping (d) brushing 
23. The  binding agent in concretes is__________ (a) cement (b) gravel (c) sand (d) clay.

24.A process if enlarging or reducing  the size of drawing known as_______________(a) free hand sketching (b) isometric (c) orthographic (d) scale drawing 

25. The following are permanent methods of joining metals  except (a)bolts and nut (b) welding (c) soldering (d) riveting
26. Which of these instrument can be found for measuring  current  , voltage and resistance.(a) voltmeter (b) multimeter (c)ammeter (d) potentio meter
27. The following aare natural defects in timber , except (a) insect attack  (b) Heart shake (c) knot (d) twist 
28. The stock and the blade of a tee – -square form angle of _______________(a) 30o (b) 60o (c) 90o (d)180o

29.Decidous trees are trees with_____________(a)flat stem (b) needle like leaves (c)broad leaves (d) ever green leaves

30. A process of drawing without the aid of any instrument is called _______________(a) free hand  sketching (b) isometric drawing (c) scale drawing (d) perspective drawing 

31 Which of the following instrument s is used to  measure resistance in electric current ?(a) ammeter (b) hydrometer (c) ohmmeter (d) micrometer 

32.The unit of current is (a) ampere (b) joules (c) newton (d) watts 

33. E . M .F means (a) electromotive force (b) electric movement force (c) e – mail force 
34. All of the following products are made from ceramics except (a) blocks (b) cups (c) pots (d) table 
35. The instrument used for transfer of measurements in drawing is called (a) micrometer (b) protector (c) divider (d) calipers 
36. The tee square is used to draw _________ lines (a) curved (b) inclined (c) vertical (d) horizontal
37. Ceniferous trees are also referred to as _______(a) bark (b) dry (c) fresh (d) soft 
38. A professional that is responsible