Basic Technology J S S 3.docx

NESTO COLLEGE ERELU OYO FIRST TERM EXAMINATION SUBJECT: BASIC TECH CLASS: JSS3 TIME: 1HUR 30MINS 1. When preparing pieces of wood for glueing they must be:- (i) dry and clean (ii) Flat and Square (iii) in either laboratory or workshop (iv) perfectly filtered together (a) i only (b) i, ii and iii (c) ii and iii (d) i and iii (e) iv 2. The unit of measurement of the weight of an object is called __________ (a) foot (b) Inch (c) Kilogram (d) meter 3. The process of joining two or more sheet of metal by means of an alloy is called _________ (a) forging (b) Folding (c) Soldering (d) tempering. 4. The flux used in soft soldering is classified into ________ groups. (a) two (b) three (c) four (d) six. 5. Metal are classified into _________ main categories (a) two (b) three (c) four (d) Six. 6. Elasticity, electric insulator and water proofing are all properties of ________ (a) Wood (b) Rubber (c) Metal (d) Glass. 7. The ability of a material to stretch and return to original length, shape is known as (a) conductivity (b) ductility (c) elasticity (d) hardness 8. Plastic which becomes soft and returns to liquid state when heated is known as (a) thermoplastic (b) thermoset (c) rubber (d) ceramics. 9. The major raw material for the production of plastic comes from (a) air (b) crude oil (c) metal (d) palm oil 10. The following are source of energy except (a) Sand (b) Sun (c) Water (d) Wind. 11. Which of the following form of Energy is used by all machine (a) Mechanical (b) Heat (c) Light (d) Wave. 12. Which of the following is appropriate for yam storage (a) ban (b) drum (c) roof (d) sack. 13. Food contains _________ energy. (a) kinetic (b) chemical (c) nuclear (d) solar. 14. Burning is the process by which _________ energy is converted to __________ energy (a) chemical, heat (b) heat, chemical (c) mechanical, chemical (d) heat, electrical. 15. The repair work carried out to avoid total breakdown of an equipment is called _________ maintenance. (a) preventive (b) routine (c) periodic (d) corrective 16. The following tools are used for site preparation except (a) spirit level (b) spade (c) hoe (d) shovel. 17. Which of the following is made from the mixture of cement, sand and stone. (a) ceiling (b) concrete (c) pitch (d) wall. 18. Ohm is the unit of _________ (a) current (b) force (c) power (d) voltage. 19. The electrical consumption in our homes is measured by PHCN in ______ hours. (a) kilowatt (b) megawatt (c) microwatt (d) uniwatt. 20. Which of the following types of foundation would you recommend for three story building on a newly reclaim swamp (a) pad (b) raft (c) pile (d) strip. 21. Transistor are made from _________ conductor (a) good (b) poor (c) semi (d) super. 22. All materials which occupy spaces and have weight are referred to as__________ (a) molecule (b) matter (c) atom (d) electron. (a) The diagram below represents a/an _____________ transformer.(a) auto (b) step down (c) step up (d) transitting. 23. The flow of free electron in an electrical circuit is called (a) voltage (b) power (c) current (d) ampere 24. Wattmeter is an electrical instrument that measures (a) power (b) voltage (c) potential (d) E.M.F. 25. The hand tool used for cutting thin sheets of metal is called. (a) snip (b) stake (c) folding bar (d) plier. 26. Materials break easily into pieces are said to be (a) brittle (b) elastic (c) conductive (d) ductile. 27. The protons of a petrol engine moving up and down are said to have _________ energy (a) mechanical (b) heat (c) light (d) chemical. 28. A device that disconnects two revolving shafts is called (a) break (b) pedal (c) clutch (d) gear. 29. Which of the following is used for lubricating rollers and bearing (a) grease (b) oil (c) water (d) kerozine

30. Which of the following tools is not a loosening and tightening tools? (a) Pincers (b) spanner (c) plier (d) screw 31. Lines that meet at 900 are called ___________ lines (a) horizontal (b) vertical (c) perpendicular (d) parallel. 32. Which of the following is not a technical drawing equipment. (a) caliper (b) protractor (c) scale rule (d) French curve. 33. The name of a figure with all sides and interior angles equal ________ (a) equilateral (b) isosceles (c) scalene (d) right angle. 34. Which of the following is not a method of preservation (a) greasing (b) salting (c) drying (d) canning. 35. The basic function of thermostat in an electric iron is to ________ (a) control the temperature (b) convert electrical energy (c) serve as fuse (d) terminate the supply of electricity. 36. The following are boring tools except (a) file (b) bit (c) drill (d) bradawl. 37. The joining of two metal plates is done by using _________ (a) lead (b) gun (c) arc welding (d) string. 38. A meter that is designed to measure current voltage and resistance is referred to as (a) meter (b) elumeter (c) multimeter (d) voltmeter 39. Which of the following does not use a chain drive (a) motor cycle (b) bicycle (c) Air conditioner (d) motor car. 40. Which of the following is not cutting tool? (a) File (b) Saw (c) Chisel (d) Cutter. 41. The symbol below represent _________ (a) diode (b) I.C. (c) Fuse (c) Coil. 42. The symbol below represents ________ (a) diode (b) resistor (c) I.C. (d) Transistor. 43. The symbol below represent __________ (a) capacitor (b) resistor (c) transistor (d) fuse. 44. Which of the following is not a hand tool (a) chain saw (b) hoe (c) cutlass (d) shovel. 45. Which of the following is not measuring tool? (a) steel rule (b) caliper (c) wrench (d) protractor. 46. Electric cooker change ________ energy to __________ energy. (a) mechanical , heat (a) chemical, heat (c) electrical, heat (d) heat, electrical. 47. Charcoal iron change ________ energy to __________ energy (a) heat, chemical (b) electrical, heat (c) chemical, heat (d) mechanical, electric. 48. A.C. motor converts ___________ energy to ___________ (a) electrical, mechanical (b) mechanical, electrical (c) heat, electrical (d) chemical, heat. 49. Abrasives are generally used for ___________ wood, (a) cutting (b) smoothening (c) racing (d) marking 50. An angle which is less than 1800 is known as _________ (a) Acute (b) reflex (c) triangle (d) obtuse. 51. Angle is formed when ____________ straight line meets (a) two (b) three (c) four (d) All. 52. The diagram below represents _________ circle (a) Concentric (b) Eccentric (c) Round (d) Sector. 53. Crude metal are called ________ (a) guage (b) ores (c) metal (d) farrouse. 54. Example of hardwood are except (a) Afara (b) Cedar (c) Iroko (d) Mahogany 55. The mixture of two or more metal is known as ________ (a) ferrous metal (b) metal alloy (c) brass (d) bronze. 56. Electricity transmission is divided into _________ ways (a) three (b) four (c) two (d) one. 57. R.M.U means (a) Resistor Meter Universal (b) Rod Metal Unit (c) Ring Main Unit (d) Road Meter Union.

SECTION B At the back of your Answer Sheet measure 130mm by 130mm 1. Draw Margin Line and title block and fill this following information Name, School, Scale, Admission Number, Date, All dimensions are in (mm). 2. List 5 parts of motor vehicle Engine