Engineering, Control Systems. Test 60

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

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

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.

feedback.
split range.
diverted.
separated range.

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

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

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

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

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

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

Review Answers