cameroon gce intermediate level 2025 mechanical technology 1
cameroon gce intermediate level 2025 mechanical technology 1
- One cylinder of an automotive four-stroke cycle engine completes a cycle everyB. 360∘
- One of the ways in which vehicles are classified is by theB. number of wheels.
- The purpose of the catalytic converter in the exhaust system of a motor vehicle is toD. reduce the emission of HC, NO$_\text{x}$, and CO.
- The differential unit is located betweenA. the transmission and the rear axle.
- The formula 4πD2×S with S being the piston stroke is that of aC. swept volume or piston displacement
- A typical cooling system circuit has the thermostat between theA. engine outlet and the radiator fan.
- In a carburettor, the choke is incorporatedA. before the venturi.
- The act of forcefully supplying air to an engine cylinder at a pressure greater than atmospheric pressure is known asC. Supercharging.
- A driving gear has 5 teeth and the driven (output) gear of a gear train has 25 teeth. The gear ratio isB. 1:5.
- The method of heat transfer taking place between the valve stem and its guide shown in figure 1 isB. conduction.
- Which of the elements below isn’t part of the exhaust gas of an engineA. CO.
- Radial ply tyres haveB. larger sidewalls than bias ply tyres.
