GMI Equipment Performance 3

Question 1

In flexographic printing, the anilox roller's primary function is to:

Accepted Answer

Meter a controlled, consistent volume of ink to the plate

Answer

The anilox roller delivers a precise, metered volume of ink to the flexographic plate through its engraved cell structure.

Question 2

Which of the following best describes the purpose of a blanket in offset lithography?

Accepted Answer

To transfer the inked image from plate to substrate

Answer

The offset blanket receives the inked image from the plate and transfers (offsets) it to the substrate, providing a resilient printing surface.

Question 3

What does 'TIR' (Total Indicator Reading) measure in press cylinder evaluation?

Accepted Answer

The runout or eccentricity of a rotating cylinder

Answer

TIR measures the total runout (eccentricity) of a cylinder as it rotates, indicating how true and round the cylinder is.

Question 4

In sheetfed offset printing, 'set-off' occurs when:

Accepted Answer

Wet ink from one sheet transfers to the back of the next sheet in the delivery pile

Answer

Set-off is the unwanted transfer of wet ink from the face of a freshly printed sheet to the back of the sheet stacked on top of it.

Question 5

Press operators use a 'star target' on a press sheet primarily to evaluate:

Accepted Answer

Slur and doubling in the printing impression

Answer

A star target is a diagnostic target that reveals slurring or doubling by showing distortion or blurring at its center point.

(GMI) Graphic Measures International Certification Practice Test