(36) In a car’s engine, which component is an essential part for igniting the air-fuel mixture and starting the combustion process?
- (a) Exhaust pipe
- (b) Spark plug
- (c) Fuel filter
- (d) Carburetor
(37) In a computer mouse, which component is an essential part for detecting the movement and translating it into cursor movement on the screen?
- (a) Scroll wheel
- (b) Buttons
- (c) Optical sensor
- (d) USB cable
(38) In a remote-controlled toy car, which component is an essential part for receiving signals from the remote control and controlling the car’s movement?
- (a) Plastic wheels
- (b) Battery compartment
- (c) Receiver module
- (d) Antenna
(39) In a digital clock, which component is an essential part for keeping time and displaying it digitally?
- (a) Alarm button
- (b) Snooze button
- (c) Quartz crystal oscillator
- (d) Display backlight
(40) In a television, which component is an essential part for receiving broadcast signals and displaying TV programs?
- (a) Remote control
- (b) Stand
- (c) Tuner
- (d) HDMI port
