20EI217 Industrial Automation Surprise Quiz 1

The HART protocol uses the ________ technique.

• Frequency Shift Keying

• Phase Shift Keying

• Amplitude Shift Keying

• Hybrid Shift Keying

Many digital control systems utilize Ethernet as a communications network, because

• speed is not affected by traffic

• it is a wireless network standard

• it is fully deterministic

• it is robust and inexpensive

Foundation Fieldbus consists of _______ layers.

• Six

• Five

• Four

• Three

The HART protocol is a typical smart instrumentation field bus that can operate in a _______ digital fashion.

• 0-5V

• 3-15 psi

• hybrid 4-20mA

• 0-24V

Sensors and control relays can't generate or interpret protocol communication, _______ is needed to provide an interface between the sensors and the SCADA network.

• Field instruments

• Optical fibres

• HMI

• RTU's

Data acquisition system interfaces between the real world of physical parameters which are _____ and the artificial world of _______ computation and control

• analog, digital

• digital, analog

• variable, data

• data, variable

Operator interface must allow the operator to have rapid access to all continuous and logic sequences is one the basic requirement for

• Process record keeping

• Process diagnostics

• Process control

• Process monitoring

The device descriptor allows operation of devices from different suppliers on the same filedbus with ______ host system.

• Single

• Multiple

• Redundant

• Double

The purpose of a watchdog timer which is a device or programmed routine in the digital control system is ______.

• interrupt normal program flow and address an immediate need

• check for errors in data communications

• monitor the operation of the microprocessor

• signal the start of a new program cycle

The operator interface must allow the operator to observe current status, and interact to initiate new steps or halt the sequence.

• Batch process

• continuous process

• continuous and sequential process

• sequential process