Unit 03 - MEC 302

In computer, VDU stands for _________________________________.

• Visual Display Unit

• Very Dangerous Unit

• Viewer Discretion Utility

• Visual Dimension unit

_______________ is the immediate condition of the surrounding.

• ambient

• dimension

• temperature

• pressure

The position in which someone holds their body when standing or sitting.

• motion

• movement

• posture

• trail

The joint that connects the hand with the forearm.

• hand

• wrist

• leg

• thigh

Injury in the muscle or body parts.

• stress

• wound

• strain

• numb

In ergonomic, what do you mean by RSI?

• Repetitive Stroke Illness

• Remote Station Indicator

• Relieving stress infection

• Repetitive Strain Injury

The first and the most important thing you do before using an input devices?

• check the contacts and terminals

• check the indicator

• check the size

• check the length

The physical contact between the PLC processor and the outside world.

• input and output module

• LED

• transistor

• thyristor

The processor is connected to the external field devices using _______________.

• opto-coupler

• limit switch

• push button

• cable

A devices that uses an electromagnet to operate a pair of movable contacts from an open position to a closed position or vice versa.

• electromagnetic relay

• electronic relay

• pneumatic relay

• hydraulic relay