2020

61. A highly sophisticated Multi-Zone DFMD is capable of detecting

A highly sophisticated Multi-Zone DFMD is capable of detecting

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metallic items above a set threshold level.
metallic as well as non-metallic items.
metallic items, non-metallic items, as well as conventional explosives.
metallic items, non-metallic items, as well as all explosives including plastic and liquid explosives.
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UPSC CISF-AC-EXE – 2020
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A Door Frame Metal Detector (DFMD) works on the principle of electromagnetic induction. It detects changes in a magnetic field caused by the presence of metallic objects as a person passes through the frame. A Multi-Zone DFMD provides better spatial resolution, indicating the approximate height location of the detected metallic item. Regardless of sophistication or the number of zones, the core function of a DFMD is limited to detecting metallic items.
DFMDs are designed specifically for the detection of metals.
Detection of non-metallic items or explosives requires different technologies such as X-ray scanners (for density and shape), trace detectors (for chemical residues), or advanced imaging systems. While some modern screening systems might integrate multiple technologies, a device solely described as a Multi-Zone DFMD primarily performs metallic item detection.

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62. The perimeter lighting at the airports should be provided on the

The perimeter lighting at the airports should be provided on the

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inner side of the airport along the perimeter road and focusing towards the perimeter fencing/wall.
top of the perimeter wall focusing outside the perimeter.
top of the perimeter road and focusing inside the perimeter.
top of the watch-towers focusing outside the perimeter wall.
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Perimeter lighting at airports is crucial for detecting unauthorized entry into the airport area. The lighting should be positioned and directed to illuminate the area between the perimeter fence and the airport boundary or patrol road. This allows security personnel (often patrolling the perimeter road) and surveillance systems (like CCTV) to detect intruders approaching or attempting to breach the fence from the outside, or moving along the inner side of the fence.
The primary purpose of airport perimeter lighting is intrusion detection. Therefore, the lighting must effectively illuminate the vulnerable zone immediately adjacent to the perimeter barrier on the airport side.
Standard specifications for airport perimeter lighting require specific lux levels and uniformity across the illuminated area. The lights are typically mounted on poles along the perimeter road or just inside the fence, and are angled to cover the area between the road/mounting point and the fence line.

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63. What is the prescribed height of the airport perimeter wall ?

What is the prescribed height of the airport perimeter wall ?

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10 ft of wall with concertina coil overhang of 2 ft
8 ft of wall with concertina coil overhang of 1½ ft
9.5 ft of wall without any concertina coil
10 ft of wall or fence
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A commonly prescribed height for an airport perimeter barrier includes an 8 ft wall or fence topped with an additional 1½ ft of concertina coil overhang.
Airport perimeter barriers are designed to deter and prevent unauthorized entry. The height and design, including the use of difficult-to-climb elements like concertina wire, are standardized to provide a significant physical obstacle. The concertina coil effectively increases the overall barrier height and makes climbing much more hazardous.
While exact specifications might vary slightly based on national regulations and specific site requirements, the combination of a solid wall/fence of around 8 feet with an added overhang of sharp wire (like concertina coil) of about 1.5 to 2 feet is a widely adopted standard for airport perimeter security worldwide.

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64. What should be the average lux level of the perimeter lighting at the

What should be the average lux level of the perimeter lighting at the airports ?

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3.5 lux
5.5 lux
More than 6 lux
The perimeter should not be lit at all
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A common recommended minimum average lux level for airport perimeter lighting is 3.5 lux.
Adequate perimeter lighting is essential for airport security during hours of darkness or low visibility. It facilitates surveillance by security personnel and CCTV systems, helping detect unauthorized access attempts across the perimeter. Standards like those from the International Civil Aviation Organization (ICAO) or national aviation security agencies specify minimum illumination levels.
While different standards may exist, 3.5 lux on average is often cited as a baseline requirement for airport perimeter lighting, with consideration for uniformity and avoidance of glare. Option D is incorrect as perimeter lighting is a fundamental security requirement for airports.

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65. Findings of which one of the following Judicial Commissions paved the

Findings of which one of the following Judicial Commissions paved the way for creation of the CISF ?

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B. Mukherjee Commission
Shah Commission of Enquiry
Nanavati Commission
Sarkaria Commission
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The findings of the B. Mukherjee Commission paved the way for the creation of the Central Industrial Security Force (CISF).
The B. Mukherjee Commission was constituted to study the security needs of Public Sector Undertakings (PSUs) in India. Its recommendations highlighted the necessity of a specialized, centrally controlled security force to protect these vital industrial assets, leading to the enactment of the CISF Act in 1968 and the force’s establishment in 1969.
The Shah Commission of Enquiry (1977-78) investigated Emergency excesses, the Nanavati Commission (2000-2008) inquired into the 2002 Gujarat riots, and the Sarkaria Commission (1983-1988) examined Centre-State relations. None of these were related to the formation of CISF.

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66. Who among the following was appointed the first Director General of th

Who among the following was appointed the first Director General of the CISF ?

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Shri P.S. Bhinder
Shri Surendranath
Shri A.F. Rustomjee
Shri Trinath Mishra
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Shri B. Mukherjee was appointed as the first Director General of the Central Industrial Security Force (CISF).
Shri B. Mukherjee took charge as the first head of the CISF when it was formally established in 1969 following the recommendations of a commission he headed.
The B. Mukherjee Commission was instrumental in recommending the creation of a dedicated security force for public sector undertakings, leading to the formation of CISF. He thus became its foundational leader. Other names listed were also prominent figures in police or security forces but were not the first DG of CISF.

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67. In which year was CISF declared as an Armed Force of the Union ?

In which year was CISF declared as an Armed Force of the Union ?

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1969
1973
1983
1990
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The Central Industrial Security Force (CISF) was declared an Armed Force of the Union in the year 1983.
CISF was established on March 10, 1969, under an Act of the Parliament of India. Initially, it was not an armed force. The amendment in 1983 upgraded its status, empowering its personnel with greater authority and legal protection necessary for performing their security duties effectively, including the power to arrest without a warrant and search.
This change in status in 1983 was significant, transforming CISF from a mere security guard force into a full-fledged armed force capable of handling more complex security challenges and threats to vital installations across the country.

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68. Broadly speaking, the role and responsibility of CISF deployed at an i

Broadly speaking, the role and responsibility of CISF deployed at an industrial undertaking would consist of which of the following ?

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Protection of vital installations of the undertaking against attacks, sabotage or other types of damage
Prevention of crime against property of the undertaking
Collection of criminal intelligence regarding activities of criminals indulging in crime against property of the undertaking
All of the above
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All the listed options (A, B, and C) are part of the broad role and responsibilities of the Central Industrial Security Force (CISF) when deployed at an industrial undertaking.
The primary mandate of CISF is to provide security cover to Public Sector Undertakings (PSUs) and other critical infrastructure. This involves physically protecting assets and personnel from various threats (A), preventing theft, vandalism, and other crimes against property (B), and gathering intelligence related to security threats and criminal activities targeting the undertaking (C).
CISF’s duties also include access control, patrolling, disaster management assistance, and maintaining overall security discipline within the premises of the protected unit. Their role is comprehensive, aimed at ensuring a safe and secure environment for industrial operations.

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69. What does TNT stand for ?

What does TNT stand for ?

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Tri Nitro Toluene
Tri Nitro Tartum
Tetra Nitro Toluene
Thallium Nitrate Tetryl
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TNT stands for Tri Nitro Toluene.
Tri Nitro Toluene (TNT) is a chemical compound with the formula C₆H₂ (NO₂)₃CH₃. It is a highly stable explosive material and one of the most widely used explosives, particularly in military and mining applications.
TNT is known for its relative insensitivity compared to other explosives, making it safer to handle. It is often used as a reference point for comparing the power of other explosives, measured by the “TNT equivalent”.

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70. Which one of the following is not necessary for the ROP to be successf

Which one of the following is not necessary for the ROP to be successful ?

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Maintaining full confidentiality
Full strength should be there
Good knowledge of area
Can move once the convoy starts moving
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The statement “Can move once the convoy starts moving” is not necessary for the success of a Road Opening Party (ROP); in fact, it contradicts the purpose of an ROP.
A Road Opening Party (ROP) is deployed *ahead* of a convoy to survey and clear the route, neutralize potential threats, and ensure safe passage *before* the convoy reaches a particular point. The ROP must secure the route and maintain its position until the convoy has safely passed through the cleared area. Moving only after the convoy starts would defeat the purpose of advance security clearance.
Essential factors for ROP success include maintaining confidentiality of the route and timing, having the full strength of personnel and equipment deployed, and possessing thorough knowledge of the area to identify potential threats or ambush points. The ROP’s presence and actions *before* the convoy’s arrival are paramount for security.

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