Quiz For Lesson 10:

Variations on The Escapement Retard

 

There is an $18 fee to grade the Lesson Ten quiz. You will be directed to Paypal for payment after you complete and submit the quiz.

 

Fields marked with an * required

 

 

 

True
False

 

During the blade-opening time.
During the blade-closing time.
While the shutter blades are wide open.
After the shutter blades have closed.

 

The bell crank is jammed.
The speed cam is out of time.
The retard section is damaged.
The wire link is disconnected.

 

The sync cam.
The bulb lever.
The release cam.
The release plunger.

 

The blade operating ring spring is damaged.
The retard section is damaged.
The mainspring is damaged.
The shutter blades are damaged.

 

The bell crank spring is broken.
The shuttlecock ribbon is broken.
The sync cam is out of adjustment.
The end of the release plunger is broken.

 

True
False

 

Inner release lever.
Release plunger.
Transfer shaft.
Released-position latch.

 

Inner release lever.
Release plunger.
Transfer shaft.
Released-position latch.

 

 

What is the fastest speed at which the pallet should be engaged?

What is the slowest speed at which the pallet should be disengaged during the exposure?

 

The blade operating ring completes its rotation to close the blades.
You set the speed knob to another exposure setting.
You let up on the release button.
You cock the shutter for the next exposure.

 

 

 

1:

2:

 

The pallet cam lever is not riding on the outside edge of the control cam.
The exposure setting link is jammed underneath the film speed cam.
The spring for the pointer is disconnected or broken.
The stop tab on the pointer link is broken or bent.

 

The release slide pawl.
The secondary latch.
The lens tube.
The lens latch.

 

A between-the-lens modular shutter.
A behind-the-lens modular shutter.
A built-in shutter with the blades behind the lens.
A built-in shutter with the blades between the lenses.

 

 

1500:

1125:

115:

 

 

 

The Ilex Acme uses two retard sections operating in tandem.

The Ilex Acme does not use a high-speed spring.

The pallet in the Ilex Acme can be disengaged for a second speed range.

The main lever in the Ilex Acme is similar to the main lever in Prontor shutters.

The Ilex Acme must be cocked to use the press-focus feature.

 

The blade-ring spring is broken.
The leaf-lever spring is broken.
The mainspring is broken.
The time-bulb lever spring is broken.

 

 

 

 

Leaf shutter diagram.

 

 

 

 

 

Please support this site with a Paypal donation by clicking the button above.