MPPSC Scientific Officer Forensic Science & Forensic Physics Paper 2013

MPPSC Scientific Officer Forensic Science & Forensic Physics Paper 2013 recruitment for Madhya Pradesh State Forensic Science Laboratory

At the point where an object strikes a window, it puts
(a) Tension on the outer surface and compression on the inner surface
(b) Compression on the outer surface and tension on the inner surface
(c) Tension on both surfaces
(d) Compression on both surfaces

The development of man-made fibre (Nylon) occured in
(a) 1937
(b) 1939
(c) 1941
(d) 1945

High power microscopic examination of soil will aid in
(a) Characterization of minerals
(b) Rocks present in earth materials
(c) Both (a) & (b)
(d) Animal materials

Among these which one is NOT the component of human speech sound when analysed through sound spectrograph ?
(a) Frequency
(b) Duration
(c) Amplitude
(d) Latitude

Speaker identification is mostly done by which mode(s) in laboratories ?
(a) Speakers recognition through listening (SRL)
(b) Automatic speaker recognition through computers (ASR)
(c) Both (a) & (b)
(d) Visual evaluation of voice spectrogram for speaker recognition SRS

What is/are the factor/s that create/s problem in the identification and comparison of voice ?
(a) External nosies
(b) Transmission rate vis-a-vis recording
(c) Malfunctioning of the device
(d) All of the above

The speed and size of the vehicle can be determined by
(a) Scattering of blood
(b) Positon of the deceased on the road
(c) Skid marks
(d) Presence of soil

Tyre marks on the road can be lifted by
(a) Plaster of Paris casting
(b) Tracing method
(c) Wood metal
(d) All of these

In order to compare two samples of soil by density gradient tube technique which liqudi/s is/are used ?
(a) Tetrabromoethane
(b) Ethanol
(c) Both (a) & (b)
(d) Benzene

Adding boron to molten glass
(a) Makes it more stable to rapid temperature changes
(b) Adds a greenish tint to the glass
(c) Makes the glass much harder
(d) Has no effect on glass

Traced signature when viewed under stereoscopic microscope reveals
(a) Sharp curves
(b) Wavering, unsteady line
(c) Unsteady line
(d) Shading

Minimum magnification required for observation of security features in currency notes is
(a) 10 – 40 X
(b) 40 – 100 X
(c) 20 – 30 X
(d) None of the above

Chemical erasures of words or numbers may be revealed by examination of handwriting under
(a) X-ray fluorescence
(b) U.V. Light
(c) Infrared luminescenece
(d) Visible light

Which of the following is demonstrative evidence ?
(a) Fibres found on the victim of a homocide
(b) Fibres taken from the suspect in a homicide
(c) A scale drawing of the crime scene
(d) The get away car used by the suspect to flee the crime

In the examination of tyre marks
(a) A single cast eight feet long should be made of each track
(b) The cast should be compared directly with the suspect tyre
(c) A cast of the evidence track should be compared with the cast of a mack made by the suspect tyre
(d) Nicks and irregularities caused by wear are used to identify the make and model of the tyre