(1.) On April 3, 2026, Raksha Mantri Shri Rajnath Singh laid the foundation stone for the Large Cavitation Tunnel (LCT) facility in which city?

(a.) Kochi

(b.) Visakhapatnam

(c.) Mumbai

(d.) Chennai

(2.) The Large Cavitation Tunnel (LCT) facility inaugurated in April 2026 was developed under the aegis of which organization?

(a.) ISRO

(b.) DRDO

(c.) HAL

(d.) BEL

(3.) What is the primary function of the Large Cavitation Tunnel (LCT) facility at NSTL?

(a.) Satellite telemetry tracking

(b.) Hydrodynamic evaluation and noise reduction of submarines and torpedoes

(c.) Missile trajectory guidance

(d.) Fighter aircraft engine testing

(4.) Good Friday, observed on April 3, 2026, marks the commemoration of the sacrifice of whom?

(a.) Prophet Muhammad

(b.) Jesus Christ

(c.) Gautama Buddha

(d.) Mahavira

(5.) Which laboratory of DRDO is associated with the newly launched Large Cavitation Tunnel project in Visakhapatnam?

(a.) Naval Science and Technological Laboratory (NSTL)

(b.) Defence Electronics Research Laboratory (DLRL)

(c.) Advanced Systems Laboratory (ASL)

(d.) Terminal Ballistics Research Laboratory (TBRL)

(6.) Which values did Prime Minister Narendra Modi specifically highlight in his message on Good Friday 2026?

(a.) Speed and Efficiency

(b.) Harmony, compassion, and forgiveness

(c.) Wealth and Prosperity

(d.) Digitization and Transparency

(7.) In military hydrodynamic testing, what is the core issue that a Large Cavitation Tunnel (LCT) helps analyze and mitigate?

(a.) Air drag resistance on wings

(b.) Underwater acoustic signatures and bubble collapse dynamics on propellers

(c.) High-altitude oxygen depletion

(d.) Radar cross-section signatures

(8.) In which Indian state is Visakhapatnam, the site of the new LCT defense facility, located?

(a.) Odisha

(b.) Tamil Nadu

(c.) Andhra Pradesh

(d.) Kerala

(9.) Who holds the portfolio of the Ministry of Defence that laid the foundation stone for the LCT facility?

(a.) Rajnath Singh

(b.) Amit Shah

(c.) S. Jaishankar

(d.) Rajnath Singh

(10.) What does the abbreviation NSTL stand for in the context of Indian naval research?

(a.) National Space Technology Laboratory

(b.) Naval Science and Technological Laboratory

(c.) Nuclear Strategic Test Laboratory

(d.) Naval Systems Training League

(11.) The development of advanced indigenous testing infrastructure like the LCT directly supports which major national policy objective?

(a.) Make in India / Aatmanirbhar Bharat

(b.) Digital India Initiative

(c.) Smart Cities Mission

(d.) National Solar Mission

(12.) Cavitation in marine engineering typically occurs due to rapid changes in what physical parameter around high-speed moving propellers?

(a.) Temperature

(b.) Pressure

(c.) Salinity

(d.) Magnetic field

(13.) Which official government portal serves as the primary press release medium for announcements like the LCT foundation stone laying?

(a.) Press Information Bureau (PIB)

(b.) MyGov India

(c.) National Portal of India

(d.) India.gov.in

(14.) Which weapon platform category stands to benefit most significantly from noise-reduction trials conducted in a Large Cavitation Tunnel?

(a.) Battle Tanks

(b.) Submarines

(c.) Intercontinental Ballistic Missiles

(d.) Aircraft Carriers

(15.) What is the primary significance of acoustic stealth for modern naval warships and submarines?

(a.) To increase top-speed underwater navigation

(b.) To avoid active and passive sonar detection by adversary forces

(c.) To improve fuel efficiency over long distances

(d.) To withstand high sea wave turbulence

(16.) Good Friday is traditionally observed immediately preceding which major Christian festival?

(a.) Christmas

(b.) Easter Sunday

(c.) Pentecost

(d.) Ascension Day

(17.) Which city houses the headquarters of the Eastern Naval Command of the Indian Navy?

(a.) Visakhapatnam

(b.) Kochi

(c.) Mumbai

(d.) Port Blair

(18.) The concept of testing scaled models in water tunnels before actual production of naval assets helps engineers evaluate what key characteristic?

(a.) Hull structural integrity under extreme depth

(b.) Flow separation, pressure fluctuations, and noise generation

(c.) Electronic warfare countermeasure capabilities

(d.) Satellite communication synchronization

(19.) When was the Defence Research and Development Organisation (DRDO) established?

(a.) 1947

(b.) 1950

(c.) 1958

(d.) 1965

(20.) Where is the headquarters of the Defence Research and Development Organisation (DRDO) located?

(a.) Bengaluru

(b.) New Delhi

(c.) Hyderabad

(d.) Pune

(21.) Which term describes the formation of vapor cavities in a liquid—such as areas of low pressure around a propeller—that collapse and cause structural damage?

(a.) Cavitating flow or Cavitation

(b.) Osmosis

(c.) Turbulence drag

(d.) Vortex shedding

(22.) The establishment of cutting-edge testing facilities like the LCT enhances India’s status in which specialized branch of engineering?

(a.) Aero-spatial avionics

(b.) Marine hydrodynamics and naval architecture

(c.) Biochemical engineering

(d.) Cyber-physical systems

(23.) Prime Minister Narendra Modi shared his Good Friday reflections through a post on which digital platform?

(a.) LinkedIn

(b.) X (formerly Twitter)

(c.) Instagram

(d.) Facebook

(24.) What is the core mission of the Naval Science and Technological Laboratory (NSTL)?

(a.) Design and development of underwater weapons and advanced naval systems

(b.) Training surface combat officers

(c.) Issuing merchant shipping licenses

(d.) Constructing civil commercial cargo liners

(25.) What broader strategic advantage does indigenization of naval testing equipment provide to India in the Indo-Pacific region?

(a.) Complete reliance on foreign defense contractors

(b.) Reduced dependency on overseas testing facilities and enhanced secrecy of military projects

(c.) Zero budget allocation for naval defense

(d.) Mandatory joint patrols with non-aligned nations

(26.) Which division of the Ministry of Defence oversees premier research laboratories like NSTL?

(a.) Department of Military Affairs

(b.) Department of Defence Research and Development

(c.) Department of Defence Production

(d.) Department of Ex-Servicemen Welfare

(27.) In what year was Visakhapatnam designated as the headquarters for the Eastern Naval Command?

(a.) 1947

(b.) 1950

(c.) 1971

(d.) 1985

(28.) What primary physical medium is circulated at high speeds inside a Large Cavitation Tunnel during testing?

(a.) Compressed air

(b.) Specialized industrial oil

(c.) Water

(d.) Liquefied natural gas

(29.) How does minimizing acoustic signature impact a submarine’s tactical survivability?

(a.) It makes it easier to communicate via commercial satellites

(b.) It prevents enemy sonar operators from detecting its movement and location

(c.) It increases its maximum surface cruising speed

(d.) It reduces battery charging time

(30.) Who is the executive head or Chairman of the Defence Research and Development Organisation (DRDO)?

(a.) Scientific Advisor to the Defence Minister / Secretary, Dept of Defence R&D

(b.) Chief of Defence Staff

(c.) Director General of Naval Operations

(d.) Cabinet Secretary

(31.) Which coastal state in India hosts the strategic port city of Visakhapatnam?

(a.) West Bengal

(b.) Andhra Pradesh

(c.) Tamil Nadu

(d.) Maharashtra

(32.) What is the primary focus of the observance of Good Friday worldwide?

(a.) Celebrating the birth of Christianity

(b.) Reflecting on the crucifixion and suffering of Jesus Christ

(c.) Marking the ascension of apostles

(d.) Recognizing biblical text translations

(33.) Why are scaled physical models utilized inside a Large Cavitation Tunnel prior to full-scale manufacturing?

(a.) To check interior cabin upholstery designs

(b.) To simulate hydrodynamic forces cost-effectively and optimize shape geometry before prototyping

(c.) To verify painterly camouflage schemes

(d.) To test satellite uplink frequencies

(34.) Which branch of the Indian Armed Forces directly benefits from the hydrodynamic research conducted at NSTL?

(a.) Indian Army

(b.) Indian Navy

(c.) Indian Air Force

(d.) Indian Coast Guard

(35.) What national goal is underscored by building state-of-the-art defense testing facilities domestically within India?

(a.) Technological self-reliance and import substitution

(b.) Exporting all defense production entirely

(c.) Outsourcing basic military R&D

(d.) Zero-budget defense manufacturing

(36.) The term "Cavitation" is most closely associated with the mechanics of which of the following?

(a.) Fluid dynamics and propeller performance

(b.) Semiconductor chip fabrication

(c.) Atmospheric ozone layer depletion

(d.) Photovoltaic solar cell efficiency

(37.) What is the significance of integrating advanced acoustic testing into modern submarine construction programs?

(a.) It allows submarines to operate at supersonic speeds

(b.) It ensures low noise signatures, maintaining tactical element of surprise

(c.) It eliminates the need for nuclear propulsion

(d.) It enables direct radio broadcasting underwater

(38.) Which central ministry released the official announcement regarding the foundation stone laying of the LCT facility?

(a.) Ministry of Home Affairs

(b.) Ministry of Defence

(c.) Ministry of Science and Technology

(d.) Ministry of Heavy Industries

(39.) In the context of competitive exams, what type of current affairs category does the LCT foundation stone laying fall under?

(a.) Entertainment and lifestyle

(b.) Defence and Science & Technology

(c.) Banking and Corporate Finance

(d.) International Sports

(40.) What overarching virtue did the Prime Minister emphasize alongside harmony and forgiveness on Good Friday?

(a.) Compassion

(b.) Aggression

(c.) Ambition

(d.) Indifference