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How Do Polygraph Machines Work?

Total questions: 28

Worksheet time: 14mins

Name
Class
Date
1.

Polygraph is popularly known as

a)

Blood Test

b)

Truth Detector

c)

Lie Detector

d)

Psychology Test

2.

Polygraph was introduced by

a)

John Wick

b)

Leonarde Keeler

c)

Mark Jonathan

d)

Galvanni

3.

Polygraph records several physiological indicators such as

a)

Blood Pressure

b)

Respiration

c)

Skin

d)

All of the above

4.

Polygraph test is used for the following purposes except :

a)

To detect a liar

b)

Stealing data

c)

To find the truth professionally

d)

To clear your name

5.

Accuracy of polygraph test is

a)

98%

b)

99%

c)

85%

d)

87%

6.

Sample of polygraph graph

a)
b)
c)
d)
7.

If you pass the polygraph test, the answer shown is

a)

No Deception Indicated

b)

Deception

c)

Inconclusive

d)

Truthful

8.

He was credited as the creator of the systolic blood pressure test used, and employed it in an attempt to detect deception during questioning, using standard blood pressure cuff stethoscope.



(a)  

9.

It is defined as a scientific instrument purposely designed to record the psycho- physiological changes that occur within the body especially of lying when questioned.

(a)  

10.

The scientific method of detecting deception with the aid of

an scientific instrument.

(a)  

11.

The word polygraph is a combination of two words “poly” which means: (a)  

12.

He studied fear and its influence on the heart in which his observation subsequently formed the basis of detection technique.

(a)  

13.

He described how he recorded the subject’s breathing using a Maley Pneumograph, noting the changes in respiration-expiration ration during deception.

(a)  

14.

He is the person introduced the word association test in 1879.

(a)  

15.

He is the person believed that the origin of the galvanic skin phenomenon was under the influence of the exciting expressions and that the will has no effect upon it.

(a)  

16.

What is the Medieval Latin Word trial by ordeal?

(a)  

17.

It is the scientific method of detecting deception done with the aid of a polygraph instrument

a)

Polygraph

b)

Polygraphy

c)

Confession

d)

Polygraphic

18.

It is a scientific instrument capable of recording simultaneously changes in blood pressure, pulse rate, respiration and skin resistance as indicative of emotional disturbance especially of a lying subject when being questioned

a)

Polygraph

b)

Lie Detector Test

c)

Polygraphy

d)

Polygraphics

19.

Lie detectors

a)

Forensic Pathology

b)

Forensic Anthropology

c)

Forensic Polygraph

d)

Forensic Odontology

e)

Forensic Entomology

20.

The word polygraph is a combination of two words “poly” which means:

a)

Lie

b)

Detection

c)

Writing chart

d)

Many

21.

It refers to the person who cannot distinguish what is right from wrong, or a person who is mentally sick.

a)

Pathological liar

b)

Black liar

c)

Psychopathic liar

d)

Panic liar

22.

It refers to a person who always pretends and a hypocrite.

a)

Black liar

b)

Panic liar

c)

Psychopathic liar

d)

Pathological liar

23.

The type of lies used to maintain harmony of friendship, harmony of the home or office.

a)

Malicious lie/Black lie

b)

Red lie

c)

Benign or white lie

d)

Black lie

24.

This lie is common to communist countries. This lie is used to destroy other ideologies by means of propaganda.

a)

Malicious lie/Black lie

b)

Lie of exaggeration

c)

Benign lie or white lie

d)

Red lie

25.

The chronic lie purely used to mislead justice, a pure dishonesty to obstruct justice.

a)

Malicious lie/Black lie

b)

Red lie

c)

Benign lie or white lie

d)

Lie of exaggeration

26.

What is the function of the galvanograph in the polygraph machine?

a)

Breathing of the subject

b)

Blood pressure and pulse rate

c)

Skin resistance of the subject

d)

To record respiration

27.

Component of lie detector which records the pulse rate, amplitude and changes of blood pressure.

a)

Pnuemograph

b)

Kymograph

c)

Cardioshygmograph

d)

Galvanograph

28.

Which of the following is the primary objective of polygraph test?

a)

To determine if a person is telling the truth.

b)

To speed up process of investigation.

c)

To eliminate innocent subject.

d)

To identify other persons involved.