Engineering, Control Systems. Test 60

Upon what is the movement of the rudder dependant, when a helm order is given ?

On the hydraulic pressure setting of the valves 'PR'.
On the spring tension of spring 'S'.
On the adjustment of the feedback rod connection 'Y'.
On the distance the command rod 'C' moves point 'X'.

Why are there several tool positions on a centre lathe tool post?

To carry out more than one operation at a time.
To accommodate different tools for different jobs.
For use when thread cutting.
To provide a fresh tool when one wears.

On a centre lathe when must turning between centres be employed?

When turning a long taper with the tailstock offset.
When a fine finish is required.
When turning a long work piece.
When taking large roughing cuts.

This automatic control system shows one temperature controller steering two valve motors (fitted in different process components) by using different working ranges. This is called _____ control.

separated range.
split range.
diverted.
feedback.

What is the purpose of the clapper box on a shaping machine?

To relieve the tool cutting edge on the return stroke.
To adjust tool position.
To securely hold the tool.
To angle tool position.

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