Sensors LV03

Multiple Choice

What are the main components of the ECU as shown in the diagram?

• Power supply

• Output circuit

• Processing circuit

• All of the above

Multiple Choice

What is the role of sensors in the engine management system?

• To control fuel only

• To change conditions into electrical signals

• To manage only ignition systems

• To operate the ECU

Multiple Choice

In a four-stroke engine, the crankcase contains lubricating oil.

• True

• False

Multiple Choice

Variable Reluctance Sensors:

• Have 2 Wires

• Have 3 Wires

• Are used on Accelerator Pedals

• Are used on Coolant Reservoirs

• Are used on Fuel Sending Units

Multiple Choice

MAF:

• Mapped Air Flow

• Manifold Air Flow

• Mass Air Flow

• Massive Attraction Failure

Multiple Choice

Hall Effect Sensors:

• Have 2 Wires

• Have 3 Wires

• Are used on Accelerator Pedals

• Are used on Fuel Sending Units

• Are used on Coolant Reservoirs

Multiple Choice

What is the role of the amplifier circuit in the active sensor system?

• To generate voltage signals

• To transform voltage signals

• To supply power

• To process signals

Multiple Choice

What is the function of the power supply in a three-wire passive sensor system?

• To convert analog signals to digital

• To provide power to the sensor

• To process the output signals

• To measure resistance

Multiple Choice

What is the function of the analog to digital converter circuit in a three-wire passive sensor system?

• To supply power to the sensor

• To convert the sensor's voltage into a digital format

• To measure the resistance of the sensor

• To output the voltage directly

Multiple Choice

What determines the output voltage of a two-wire passive sensor?

• The series resistor value

• The power supply voltage

• The type of sensor

• The ECU model

Multiple Choice

Who is correct regarding the statements made by Technician A and Technician B about sensors?

• Technician A only

• Technician B only

• Both technician A and technician B

• Neither technician A nor technician B

Multiple Choice

What is the function of the exhaust gas oxygen (O2) sensor?

• To monitor the amount of oxygen in the exhaust gases

• To measure the temperature of the exhaust gases

• To control the fuel injection system

• To check the efficiency of the catalytic converter

Multiple Choice

What are the two types of sensors used to monitor the operating temperature of an engine?

• Engine coolant temperature sensor and cylinder head temperature sensor

• Oil temperature sensor and air temperature sensor

• Fuel temperature sensor and exhaust temperature sensor

• Radiator temperature sensor and coolant temperature sensor

Multiple Choice

What is the function of the crankshaft position sensor?

• To monitor the position of the crankshaft and engine rpm

• To determine which cylinders require fuel or a spark

• To calculate when ignition timing and fuel injection should occur

• To monitor the position of the camshaft

Multiple Choice

What is the function of the throttle position sensor in an engine?

• To monitor the speed of the vehicle

• To adjust the fuel delivery based on throttle position

• To measure the temperature of the engine

• To control the ignition timing

Multiple Choice

What is the function of the mass airflow sensor in an engine?

• To measure the temperature of the air

• To measure the mass of air being drawn into the engine

• To control the throttle plate

• To calculate fuel delivery requirements

Multiple Choice

What is the function of the manifold absolute pressure sensor in relation to the engine's intake manifold?

• To measure engine temperature

• To calculate fuel delivery requirements

• To monitor exhaust emissions

• To control engine speed

Multiple Choice

What is the function of the knock sensor in an engine?

• To measure fuel efficiency

• To sense vibrations caused by abnormal combustion

• To control the engine temperature

• To monitor oil pressure

Multiple Choice

Which sensor does the ECU use to determine the speed of an engine?

• The camshaft position sensor

• The crankshaft position sensor

• The throttle position sensor

• The mass airflow sensor

Multiple Choice

What is the role of actuators in the engine management system?

• To control fuel, ignition, and emission systems

• To measure engine temperature

• To provide power to the engine

• To monitor vehicle speed

Multiple Choice

What are the three main types of actuators described in the image?

• Solenoid, Relay, Motor

• Piston, Valve, Gear

• Sensor, Actuator, Controller

• Switch, Circuit, Relay

Multiple Choice

What are the main components of a fuel injector?

• Solenoid, armature, needle valve

• Pump, filter, nozzle

• Cylinder, piston, crankshaft

• Battery, alternator, starter

Multiple Choice

What is the function of a relay in an electrical circuit?

• To store energy

• To open or close an electrical contact

• To increase voltage

• To measure current

Multiple Choice

Which statement about the idle air control valve is true?

• It controls the throttle plate

• It controls the amount of air bypassing the throttle plate

• It controls the top speed of the engine

• It senses whether the engine is idling correctly

Multiple Choice

What have you seen in this presentation?

• different types of sensors and actuators

• only sensors

• only actuators

• none of the above

Multiple Choice

When designing a product which of the following should you not do?

• A. Jump right in

• B. Go through multiple ideas and protoypes

• C. Consider materials available and how it will be made

• D. Draw sketches and think about the users

Multiple Choice

Robots collect information about the environment using

• actuators

• end effectors

• motors

• sensors

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident