Leather Industry Development

Institute

LEATHER PROCESSING
EQUIPMENT OPERATION
Level II

Unit of OPERATING MACHINES TO CRUST

: LEATHER
Competence

TTLM Code : LTT LE02 TTLM 08 13 V1

Evidence Plan
TVET Program: Leather Processing Equipment Operation Level II

Module Title: Operate Machines to Crust

Learning Outcome(s) Covered: • Operate machine to crust hides, skins or leather

• Monitor product quality
• Carry out operator maintenance
• Dispose of waste materials
• Communicate process information
Ways in which evidence will be collected:

Demonstration with Oral

Observation with Oral
Questioning

Questioning

Written Test
The evidence must show that the trainee should
Operate machine to crust hides, skins and leather X X
Standard operating procedure for the machine X X
Understanding of OHS practice of operating machine X X
Identifying and applying quality requirements on process X X
Identifying and implementation of maintenance and cleaning X X
materials
Disposal of waste materials X X
Understanding the importance of recording and documentation X X
Prepared by: Date:
Checked by: Date:
 Leather Processing Equipment Operation
Level II

OPERATING MACHINES TO CRUST

Knowledge Test

Name
Batch Class

Date

Final Mark
 Leather Processing Equipment Operation Level II

OPERATING MACHINES TO CRUST

Knowledge Test

Table of Specifications
Total Number Equivalent Earned
Content
of Questions Marks Marks
Test I: Multiple Choice Questions 8 8
Test II: Short Answer Questions 4 12
Total 20

Instructions

Read the directions carefully.

Write your name, batch class and date today in the space provided on the cover
page of this test booklet.

All written responses must be in English.

You have 60 minutes to complete this test, but if you can finish it earlier, you may
hand in your booklet to your Proctor.

This is a MULTIPLE-CHOICE and SHORT ANSWER TYPE of test.

Test I: Multiple Choice Type

• There are eight questions in Test I.
• Select the best answer for each question. Do this by encircling the letter that
corresponds to your answer.
• If you wish to change an answer, place an X through the letter you have encircled
and then encircle your preferred answer.
• A correct answer scores 1 point and an incorrect answer scores 0 point. No marks
will be given for a question if more than one answer is supplied.

EXAMPLE: Which of the following does not belong in the group?

A. Computer
B. Printer
C. Photocopier
D. UPS
The correct answer is Photocopier so encircle the letter C.

IMPORTANT: DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO.
Test Begins Here:

Test I: Choose the best answer

1. Which operation is the last operation for adjusting the thickness of the leathers
finally?

A. Staking

B. Toggling

C. Shaving

D. Splitting

2. Which of the following is the objective of sammying machine?

A. Splitting of the leather

B. Adjusting the thickness of leather

C. Reduce the amount of water in leather

D. None of above

3. What is the common complaint in shaving?

A. Over shaving
B. Folding
C. Hole
D. Shatter Mark

4. What is the basic parameter one needs to be taken into account for sammying?

A. Thickness of the wet blue

B. Moisture content of the wet blue
C. Nap effect
D. Suede effect
5. What is the important parameter one needs to monitor for shaving operation?

A. Color uniformity
B. Thickness of leathers
C. The wrinkle flatness and grain smoothness
D. Looseness

6. What is the important parameter to be monitored for buffing operation?

A. Nap effect
B. Thickness of the wet blue
C. Moisture content of the wet blue
D. Looseness

7. What is the important parameter to be monitored for setting out operation

A. Color uniformity
B. Removal of fat
C. The wrinkle flatness and grain smoothness
D. Looseness

8. Which type of samming machine do tanners prefer for better productivity?

A. Rotary samming
B. Setting out
C. Through feed samming
D. Sam setting machine
Test II. Short Answer Questions
Instructions:
• There are four questions in this section. Each question carry three marks

• Answer all questions and write your answers in the corresponding space
provided.

BEGIN HERE:

1. What are the objectives of setting machines?

__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________

2. Write the working principle of buffing machine?

_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________

3. Write the Environmental impacts of tannery solid waste.

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________
4. What is the advantageous and disadvantageous of landfill?
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
______________________________________________________

– TEST ENDS HERE –

 Key Answers

Multiple Choices

1. C
2. C
3. D
4. B
5. B
6. A
7. C
8. C

Key for Short Answer Questions

1. Ans: Objectives of setting machine are as follows:

§ This operation makes the leather flat and smooth
§ Removes the wrinkles.
§ Hide spreading and grain side flattening operations are performed by
the blunt knife cylinder widens spreads and flattens the grain side of
the leather

2. Ans : Any three points from the following list may be awarded three marks.
§ Check that the band knife, grinding wheels and jaw plates are in
correct positions.
§ Check the speed of feed roller and speed of endless band knife.
§ Check the upper and lower grinding devices are functioning properly.
§ Check the tension of band knife; tension is not too high or too low.
§ Check the gap between the feed and pressure roller is same in all
position.
§ Check the emergency switches are functioning properly
§ Ensure that all the safety devices are engaged in the proper position

3. Ans : Environmental impacts of tannery solid wastes

 § Some of the bio-degradable tannery solid wastes are sources of pathogenic
bacteria and volatile organic compounds emission.
§ Excess heavy metal accumulation in soil is toxic to humans and other
animals.
§ Chromium metal which is the most widely used in tanning industries as
chromium salt and it causes carcinogenic effect when it enters human body
through food chain

4. Ans: Advantages and disadvantageous of Landfill:

Advantages:
• Relatively simple and inexpensive.
• Can have beneficial effects reclaiming land otherwise for commercial,
residential, or recreation purposes.

Disadvantages:
• Decomposition of leather waste is very low
• Leather decomposition produce potential locates which may cause
ground water contamination
• Chromium deposits can be a health problem
 Assessment Summary Results (form part of the Teacher’s Report)

Student’s Name

Teacher’s Name

TVET Program Title

Batch Class

Module Title
Date of Assessment

The performance of the student is – Satisfactory Not Satisfactory

A. Demonstration with Oral questioning

B. Written Test

Did the student’s overall performance meet

q Yes q No
the required evidences / standards?

OVERALL EVALUATION q COMPETENT q NOT YET COMPETENT

General Comments [Strengths / Improvements needed]

Student's signature: Date:

Teacher’s signature: Date:

Trainee’s Record Book
Recommendations: (print name of teacher in this space) Date
Teacher
______ Endorsement for Graduation (TTI) _________ ______________________ ___________

______ Endorsement for NC Assessment (TTI) _________

(print name of Registrar in this space) Date
______ For completion of _____ modules (TTI) _________ Registrar
______________________ ___________
TVET College Dean/Center Administrator Date
Completed Other Courses:
£ Civic Programs (TTI) _________
(Place here name of TVET institution)
(place here location of the institution)
£ Gender Sensitivity Training (TTI)
_________

Remarks:
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
________
________________________

____________

Student / Trainee / Student Date

________________________

____________
 NAME OF TRAINEE Progress Check (Formative Assessment)
st nd
Module Learning No. of 1 Try 2 Try
Picture DS DF Remarks
Program Title: _______________________ Code Outcomes Hours C NYC C NYC
Batch Class _________________________
Date (Start of Training) _________________________

Competences Acquired:
Summative Assessment
Institutional
Module No. of Assessment
Competence DS DF Result SI TI
Code Hours
C NYC

• TRI – Student’s Initial • LO – Learning Outcome

• TTI – Teacher’s Initial • C – Competent
• DS – Date Started • NYC – Not Yet Competent
• DF – Date Finished
•
Attendance Work Requirements
Trainee’s Teacher’s Teacher’s
Date Course Title Date Work Assignment Rating
Signature Signature Signature