Topic : ESDA
Que 1: Which instrument is regularly used for questioned document analysis to decipher indentations or impressions in paper.
A) VSC
B) ESDA
C) SEM
D) TEM
Que 2: Indentation is also is known as:
A) Latent impression/writing
B) Patent impression/writing
C) Plastic impression/writing
D) None of the above
Que 3: Indented Writing formed due to
A) Due to application force of Writing style
B) Due to application of Pressure by Writing surface
C) Due to application of Pressure by Writing instrument
D) Due to application force by writer
Que 4: Which of the following is the components of ESDA
A) Reel Holder
B) Main Unit
C) Corona wand
D) All of the above
Que 5: Factors influencing the quality of final image by ESDA
A) Paper type
B) Document Humidification
C) Both of these
D) None of these
Que 6: Which of the following is Non - destructive technique?
A) ESDA
B) Stereomicroscope
C) VSC
D) All of these
Que 7: Indented Writing are ____
A) Force applied behind writing
B) Writing pattern on surface
C) Inclination of letters on writing surface
D) Application of pressure by writing surface
Que 8: The principle of ESDA based on
A) Thickness Variation Theory
B) Surface Variation Theory
C) Charge Capacitance Principle
D) All of the above
Que 9: The charged electrode used in ESDA is called
A) Charged Wand
B) Corona Wand
C) Capacitor Wand
D) Negative Electrode wand
Que 10: Which of the following is not application of ESDA
A) Cheques & Traced Forgery,
B) Ransom note
C) Security feature of currencies
D) anonymous letters
Que 11: Arrange the following given clues as in the arrangement of platen
- Charging of the Surface
- Preservation and Result
- Imaging film
- Nature of document
- Toner to develop indentation
A) 4, 1, 5, 3, 2
B) 4, 1, 5, 2, 3
C) 4, 3, 1, 5, 2
D) 4, 3, 1, 2, 5
Que 12: Which of the following statement is correct with respect to Steps of implementation of ESDA?
A) The document has to humidified approx 80℅.
B) The document is placed on a porous, electrically earthen platen so that it is drawn up by the action of a vacuum pump.
C) Negative electrical charge is deposited onto the upper surface of the imaging film using the hand- held corona wand.
D) The electrostatic image is developed and made visible by applying positively - charged black toner powder to the imaging film.
Que 13: ESDA is an Instrument used
for questioned document analysis to decipher indentations or impressions in paper was developed by
A) M.A.Casey
B) Foster & Freeman
C) Eurofins
D) D.J.Purtell
Que 14: ___ model was based on charge transport through the Mylar-paper-platen structure and is called the charge transport model.
A) Foster's Model
B) Purtell's Model
C) Seward's Model
D) None of these
Que 15: ESDA methods can also be used to lift
A) Footprints in dust
B) Fingerprint
C) Lip-print on glass
D) None of the above
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Written By:
Mr. Dhaval Kumar Chavda
Volunteer Of AFRS
