Question 1Watt is the S.I. unit of A.currentB.forceC.powerD.resistanceE.voltageObjective Show full explanation
Question 2Calculate the work done by a force of 8N, which moves a load through a distance of 15m in the direction of the force.A.80JB.85JC.120JD.150JE.240JObjective Show full explanation
Question 3The type of energy obtained from food isA.chemicalB.kineticC.nuclearD.potentialE.solarObjective Show full explanation
Question 4The device in a circuit used for storing electric charge isA.capacitorB.diodeC.inductorD.resistorE.transistorObjective Show full explanation
Question 5The flow of electrons in an electric circuit is known asA.charge B.currentC.energyD.powerE.voltageObjective Show full explanation
Question 6The movement of piston in the bicycle pump shown below illustrates _____ motion.A.linearB.oscillatoryC.randomD.rotaryObjective Show full explanation
Question 7The following systems utilize air to function exceptA.ballonsB.bellowsC.kitesD.screw jacksE.vacuum cleanersObjective Show full explanation
Question 8Kerosene stove converts ______ to ______ energy.A.chemical, heatB.chemical, mechanicalC.electrical, mechanicalD.heat, chemicalE.mechanical, chemicalObjective Show full explanation
Question 9Which of the following appliances cannot be powered by electrical energy?A.BlenderB.Ceiling fanC.Gasoline generatorD.TelevisionE.Washing machineObjective Show full explanation
Question 10The device that can convert electrical to sound energy isA.electric fanB.electric ironC.kerosene stoveD.loudspeakerE.refrigeratorObjective Show full explanation
Question 11What form of energy is utilized by wind mill to generate electricity?A.ChemicalB.HeatC.MechanicalD.SolarE.SoundObjective Show full explanation
Question 12A dynamo converts _____ to _____ energy.A.electrical, lightB.electrical, mechanicalC.heat, solarD.mechanical, electricalE.solar, heatObjective Show full explanation
Question 13The electric cooker converts electrical to _____ energy.A.chemicalB.heatC.lightD.mechanicalE.soundObjective Show full explanation
Question 14The power of transmission system of a motor vehicle includes the following except the A.clutchB.gearboxC.propeller shaftD.rear axleE.steering wheelObjective Show full explanation
Question 15Which of these does not employ the use of friction?A.Belt driveB.BrakeC.ClutchD.Gear boxE.PulleyObjective Show full explanation
Question 16Bicycles are usually driven by _____ belt.A.chainB.crossedC.flatD.openE.veeObjective Show full explanation
Question 17Examples of belt drives are seen in the following exceptA.air conditionerB.corn grinderC.electric blenderD.record playerE.sewing machineObjective Show full explanation
Question 18Gears are lubricated for the following purposes except toA.overcome frictionB.prevent corrosionC.prevent excessive wearD.reduce heatE.transmit motionObjective Show full explanation
Question 19Which of these statements is true when three gears of equal size are arranged as shown below?A.X rotates faster than YB.X rotates in the same direction as YC.X rotates in the same direction as ZD.Y rotates in the same direction as ZE.Z rotates faster than XObjective Show full explanation
Question 20A screw jack converts rotary to _____ motion.A.circularB.linearC.oscillatoryD.randomE.zig-zagObjective Show full explanation
Question 21The system that makes use of fluid for its operation is referred to as A.chemicalB.electricalC.hydraulicD.mechanicalE.pneumaticObjective Show full explanation
Question 22The symbol below represents A.capacitor B.diodeC.inductorD.resistorE.transformerObjective Show full explanation
Question 23The symbol below representsA.capacitorB.diodeC.loud speakerD.resistorE.transformerObjective Show full explanation
Question 24The electronic component that opposes the flow of current in a circuit is A.capacitorB.diodeC.inductorD.resistorE.transistorObjective Show full explanation
Question 25Which of the following is the symbol of a coil?A. B. C. D. E.Objective Show full explanation
Question 26The electric transmission frequency in Nigeria is _____ hertz.A.10B.20C.30D.40E.50Objective Show full explanation
Question 27The device that is used to step up voltage is A.electric motor B.generatorC.rotorD.transformerE.turbineObjective Show full explanation
Question 28Electricity is transmitted at the following ranges exceptA.11KVAB.33KVAC.66KVAD.132KVAE.330KVAObjective Show full explanation
Question 29Which of these materials is used as transmission line insulator?A.GermaniumB.MicaC.PlasticD.PorcelainE.P.V.CObjective Show full explanation
Question 30Which of these tools is not used for transmission line installation?A.HacksawB.MalletC.PlierD.Screw driverE.SpannerObjective Show full explanation
Question 31Which of the following is not a conductor?A.AluminiumB.CopperC.GlassD.SilverE.SteelObjective Show full explanation
Question 32Electric current is measured with ______.A.ammeterB.ohmmeterC.potentiometerD.voltmeterE.wattmeterObjective Show full explanation
Question 33Electricity supply systems are made available to consumers through the following except ______ wireA.double phase 2B.single phase 2C.single phase 3D.three phase 3E.three phase 4Objective Show full explanation
Question 34The symbol below represents _____ in an electrical design.A.bell pushB.lighting pointC.one-way socket outletD.one-way switchE.two-way switchObjective Show full explanation
Question 35Which of these materials is not used in surface wiring?A.ClipsB.Insulation tapeC.Lamp holderD.PipeE.PVC cableObjective Show full explanation
Question 36Which of these tools is not used for electrical wiring?A.AnvilB.ChiselC.GimletD.HammerE.TesterObjective Show full explanation
Question 37Frequency is measured in A.amperesB.hertzC.ohmsD.voltsE.wattsObjective Show full explanation
Question 38The current that flows through a circuit of e ohms resistor connected to a 24 volts supply is _____ A.A.10B.8C.6D.4E.2Objective Show full explanation
Question 39Rising of water from foundation into the building can be avoided by usingA.back fillingB.concrete slabC.damp proof courseD.hardcore fillingObjective Show full explanation
Question 40The symbol below representsA.hardcoreB.mass concreteC.reinforced concreteD.soilE.stoneObjective Show full explanation
Question 41The following are site clearing tools exceptA.axeB.hoeC.rakeD.shovel E.trowelObjective Show full explanation
Question 42The technical name for a place where construction of a building is on-going is a/anA.areaB.fieldC.locationD.plotE.siteObjective Show full explanation
Question 43Which of the following processes is not involved in site preparation?A.ClearanceB.investigationC.LayoutD.RammingE.Setting outObjective Show full explanation
Question 44The proportion of reinforced concrete mix is in the ratio of A.1:2:4B.1:3:4C.1:4:4D.2:2:4E.2:3:4Objective Show full explanation
Question 45The diagram below represents _____ foundation A.padB.pileC.raftD.solidE.stripObjective Show full explanation
Question 46The following materials are used for roofing exceptA.aluminiumB.concreteC.glassD.slateE.zincObjective Show full explanation
Question 47The diagram below shows a/an _____ wall.A.asbsestosB.concreteC.glassD.stoneE.woodenObjective Show full explanation
Question 48The wall that divides a space within a building is calledA.boundaryB.envelopC.load-bearing D.partition E.partyObjective Show full explanation
Question 49The window type drawn below isA.casementB.louvreC.projectedD.revolvingE.slidingObjective Show full explanation
Question 50The part labelled "K" in the window drawn below is a A.baseB.jambC.sideD.sillE.slabObjective Show full explanation