What Does the Following Expression Evaluate to

question 12

Multiple Choice

What does the following expression evaluate to
( ( 3 + ( 5 + 4 ) * 7 ) + 4 ) / 5

• A) 8
• B) 14
• C) 17.6
• D) 26.4

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Definitions:

Optical Isolation

Electrical separation of two circuits with the use of an optical coupler.

Electrical Noise

Unwanted random signals mixed with a useful electrical signal that can cause disturbances and degradation in system performance.

I/O Modules

Hardware components in a control system that interface with external devices; they facilitate input and output operations between the processor and the peripherals.

Slot Or Connector

components in electronics and computing used for connecting different parts, like a memory card to a motherboard or a cable to a port.