Ramsay Test Process Flow and Instrumentation 5

Question 1

A magnetic flowmeter (magmeter) can only measure the flow of fluids that are:

Accepted Answer

Electrically conductive, like water

Answer

Non-conductive, like oil

Answer

Always gases

Answer

At very high temperature

Question 2

In a feedforward control strategy, the controller acts based on:

Accepted Answer

A measured disturbance before it affects the controlled variable

Answer

The measured error after a disturbance affects the process

Answer

The alarm history

Answer

Random sampling

Question 3

Two block valves with a vent valve between them, used to positively isolate a line, is called a:

Accepted Answer

Double block and bleed

Answer

Cascade valve set

Answer

Manifold header

Answer

Relief train

Question 4

A pressure gauge reading 'gauge pressure' (psig) shows pressure relative to:

Accepted Answer

Atmospheric pressure

Answer

Absolute vacuum

Answer

The setpoint

Answer

The relief valve setting

Question 5

On a P&ID, the letters 'LSH' identify a:

Accepted Answer

Level switch, high

Answer

Liquid sample header

Answer

Low speed handle

Answer

Level safety housing

Question 6

An interlock (or shutdown system) in a process plant is designed primarily to:

Accepted Answer

Automatically take equipment to a safe state when limits are exceeded

Answer

Optimize product quality

Answer

Record data for reports

Answer

Adjust setpoints for efficiency

Question 7

A Coriolis flowmeter is valued because it can directly measure:

Accepted Answer

Mass flow rate (and often density)

Answer

Only volumetric flow

Answer

Pressure only

Answer

Temperature only