Sensors in mechatronics

What is mechatronics?

• A. The study of mechanical systems only

• D. The study of computer systems only

• B. The study of electrical systems only

• C. The interdisciplinary field combining mechanical, electrical/electronics, computer systems, and advanced controls

What is the purpose of cruise control in vehicles?

• A. To increase fuel consumption

• B. To maintain a safe distance with other vehicles

• C. To encourage speeding

• D. To limit the control of the driver

What is the function of a thermocouple?

• A. To measure temperature using a bimetallic strip

• B. To convert electrical signal to mechanical force

• C. To measure temperature using two different metals

• D. To measure pressure using a bellows

What is the purpose of a differential pressure cell in level sensors?

• A. To measure the pressure difference between two points in a tank or pipe

• B. To measure the pressure difference between two fluids

• C. To measure the pressure difference between the fluid and the open vessel

• D. To measure the pressure difference between the fluid and the wet leg

What is the main advantage of using an ultrasonic flow meter?

• A. Measures flow based on the variable area principle

• B. Determines fluid flow by using heat transfer

• C. Gauges fluid flow by sensing the difference between two pressures

• D. Determines fluid flow by using the transit time of ultrasonic waves

What is the purpose of a valve positioner in a process control system?

• D. To control the temperature of fluids

• A. To regulate the flow of fluids

• B. To manage the position of a control valve

• C. To measure the pressure of fluids

What is the main function of pneumatic control systems?

• C. Use calibration software to control the valve

• A. Use voltage or current signal to control the valve

• D. Use external power supply to control the valve

• B. Use compressed air to control the valves

What is the purpose of a bimetallic strip in temperature sensors?

• A. To measure temperature using strip of two different metals based on expansion difference

• B. To convert electrical signal to mechanical force

• C. To measure temperature using a wire wound into a coil

• D. To measure pressure using a bellows

What is the function of a bellows in pressure sensors?

• D. To detect pressure by sensing the difference between two pressures

• C. To measure pressure using a U-shaped tube

• B. To convert pressure into linear motion

• A. To measure pressure using a curved tube

What is the purpose of a chain float gauge in level sensors?

• A. To measure the pressure difference between the fluid and the atmosphere

• B. To gauge fluid levels in tanks or vessels

• C. To measure the pressure difference between the fluid and the wet leg

• D. To measure the pressure difference between the fluid and the open vessel