Exam 4: Analog Processes Control Devices, Sensors and Safety

Which of the following is not a control device used on the output side of a process?

The blanking control halts the operation of the light curtain, allowing automatic feeding of materials through the curtain.

Which of the following is not a mechanical interlock device?

Celsius is generally the temperature scale used in industry.

ISO is the acronym for international organization for standardization.

The optimum time to start the HAZOP study is before the detail design has started.

Match the advantage to its temperature sensor. -Operates over a large temperature range

A venturi is a non -intrusive flow sensor.

Two unskilled part handlers load forms into a fixture in a robot molding work cell and unload the finished product every twenty minutes. The robot is in the pause mode will they work. The severity of potential injury is___________ .

Designers use pneumatic actuators for heavy loads that require a slow and precise movement.

Strain can either be positive (compression) or negative (tensile).

HAZOP study has been used extensively in the process industries.

The resistance coefficient of pure metal is expressed in ohms per degree Celsius.

Match the advantage or disadvantage to the mechanical interlock. -Difficult to clean thoroughly

Match the valve type to the application -Control the flow of liquid in explosive atmosphere conditions

The potentiometers used as position sensors have billions of operations, yielding a long life expectancy.

Which of the following is not a classification of a pressure sensor?

Radar level sensor operates well when the surface of liquid is foamy.

Match the valve type to the application -Paint delivery system

Match the flow sensor with its classification. -Paddlewheel