INSTRUMENT INSTALLATION AND MAINTENANCE

Field-level buses can be grouped in many categories. Which bus is used with proximity switches, pushbuttons, motor starters, and other simple devices?

• Device Bus

• Sensor Bus

• Fieldbus

• Profibus DP

What is the meaning of HART

• Highway Addressable Remote Transformer

• Highway Addressable Remote Transmitter

• Highway Addressable Remote Thermometer

• Highway Addressable Remote Transducer

FOUNDATION fieldbus is covered by standards from three major organizations EXCEPT

• ISO 9001:2000

• ANSI/ISA 50.02

• CENELAC EN50170:1996/A1

• IEC 61158

Which one of a sentence below related to Fieldbus?

• Sensor buses are common in discrete manufacturing.

• Multiple field-level networks, with different types of buses to meet different needs.

• Provide highly reliable two-way communications between "smart" devices and systems in time-critical applications.

• Buses are designed to meet the needs of more complex devices, often in fast-moving discrete operations requiring short, fast communications.

There are several types of wires are used in Fieldbus wiring. Which one of a sentence below related to Type C Wire?

• Multiple Twisted Pair Without Shield, #26 AWG (0.13 mm²) , 400 m (1312ft)

• Multiple Twisted Pair Without Shield, #22 AWG (0.32 mm²), 400 m (1312ft)

• Multiple Twisted Pair Without Shield, #26 AWG (0.13 mm²) , 200 m (656ft)

• Multiple Twisted Pair With Overall Shield, #26 AWG (0.13 mm²), 400 m (1312ft)

The Fieldbus communications model consists of three layers EXCEPT

• The User Layer

• The Network Layer

• The Data Link & Application Layer

• The Physical Layer

A segment has 4000 feet (1220 meters) of type A shielded twisted pair wire and 200 feet (61 meters) of type D non-shielded, non-twisted pair. What is the sum of the ratios for this 2 mixing wire?

• 0.64 or 64%

• 0,74 or 74 %

• 0,84 or 84 %

• 0.94 or 94 %

What is IEC 61511?

• An international safety standard issued by the International Electrotechnical Commission.

• An international safety standard issued by the International Electronic Commission.

• An international safety standard issued by the International Electrical Commission.

• An international safety standard issued by the International Electromechanical

  Commission