Q5871. The Tejas Mk1A, recently inducted into the Indian Air Force, is categorized as which generation of fighter aircraft?
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Q5872. A major upgrade in the Tejas Mk1A is the integration of an AESA radar. What does AESA stand for in this context?
Explanation
AESA stands for Active Electronically Scanned Array, a type of advanced phased-array radar. Unlike traditional radars with moving parts, an AESA radar uses a computer-controlled array of many small transmitter/receiver modules. This allows it to scan the environment faster, track multiple targets simultaneously with higher precision, and be more resistant to electronic jamming, significantly increasing the aircraft’s combat effectiveness and situational awareness.
Q5873. The Tejas Light Combat Aircraft (LCA) program is primarily designed and developed by which agency?
Explanation
The Tejas Light Combat Aircraft was designed and developed by the Aeronautical Development Agency, which is the nodal agency for the national combat aircraft program. Operating under the Department of Defence R&D, ADA collaborates with various DRDO laboratories and Hindustan Aeronautics Limited. While HAL is the primary manufacturing partner, the core design and technological development are spearheaded by the specialists at ADA.
Q5874. Identify the correct pair regarding the weapon systems integrated on the Tejas Mk1A.
Explanation
The Tejas Mk1A is designed to carry a variety of advanced weapons, including the indigenous Astra missile. Astra is a beyond-visual-range air-to-air missile capable of engaging high-speed aerial targets at long distances. Its integration into the Tejas platform is a major step toward achieving self-reliance in strategic weaponry, reducing the need for imported missiles like those from Russia or Europe.
Q5875. Consider the following statements:
Statement I: Tejas Mk1A features an indigenous digital fly-by-wire flight control system.
Statement II: The aircraft is aerodynamically stable by design, making it flyable even without computers.
Which of the following is correct?
Statement I: Tejas Mk1A features an indigenous digital fly-by-wire flight control system.
Statement II: The aircraft is aerodynamically stable by design, making it flyable even without computers.
Which of the following is correct?
Explanation
The Tejas features a sophisticated digital fly-by-wire system that manages all flight controls. Aerodynamically, the aircraft is designed to be inherently unstable to achieve superior maneuverability and agility. This instability means it cannot be flown manually without the constant, high-speed corrections provided by the onboard flight control computers. This design is a standard characteristic of modern, high-performance combat aircraft.
Q5876. Which of the following statements about the indigenization of the Tejas Mk1A is incorrect?
Explanation
The Tejas program has achieved high levels of indigenization in its airframe, mission computer, and electronic warfare suites. It also features a high percentage of indigenous carbon-fiber composites. However, the current variants, including the Mk1A, are powered by imported General Electric F404 engines. While the indigenous Kaveri engine was originally intended for the Tejas, it is still undergoing development for future applications.
Q5877. Which of the following capabilities is an exception and is NOT a feature of the Tejas Mk1A variant?
Explanation
The Tejas Mk1A is a single-engine light combat aircraft designed for agility and multi-role operations. It features mid-air refueling, advanced electronic warfare suites, and beyond-visual-range missile capabilities. However, it is not a twin-engine aircraft, nor is it designed for supercruise, which is the ability to maintain supersonic flight without afterburners.
Q5878. What is a primary aerodynamic effect of the tailless compound delta wing design used in the Tejas aircraft?
Explanation
The tailless compound delta wing design is a defining aerodynamic feature of the Tejas. This shape allows the aircraft to maintain control at high angles of attack, known as high-alpha performance, which is crucial for close-range dogfighting. Additionally, this configuration enables very high roll rates, making the Tejas exceptionally agile and capable of performing rapid maneuvers that can out-turn many contemporary fighter aircraft.
Q5879. Consider the following statements regarding the Tejas Mk1A upgrades over the initial Operational Clearance (IOC) version:
I. It includes an Active Electronically Scanned Array (AESA) radar.
II. It features improved maintainability and faster turnaround times.
III. It has a significantly larger wingspan and a secondary cockpit for a co-pilot in all single-seat versions.
Which of the above statement(s) is/are correct?
I. It includes an Active Electronically Scanned Array (AESA) radar.
II. It features improved maintainability and faster turnaround times.
III. It has a significantly larger wingspan and a secondary cockpit for a co-pilot in all single-seat versions.
Which of the above statement(s) is/are correct?
Explanation
The Mk1A variant introduces several critical upgrades to the Tejas platform, including an AESA radar and improved electronic warfare systems. It also focuses on enhanced maintainability, allowing for faster turnaround times between missions. However, the Mk1A maintains the same basic single-seat configuration and wingspan as the initial version; it does not add a second cockpit or significantly change the aircraft’s physical dimensions.
Q5880. The INS Vikrant, India’s first indigenous aircraft carrier, is formally designated as IAC-1. What does IAC stand for?
Explanation
INS Vikrant is designated IAC-1, which stands for Indigenous Aircraft Carrier. It was built in India.Answer key for these questions
| Q | Correct answer |
|---|---|
| 5871 | (c) 4.5 generation |
| 5872 | (a) Active Electronically Scanned Array |
| 5873 | (d) Aeronautical Development Agency (ADA) under DRDO |
| 5874 | (b) Astra - Indigenous Beyond Visual Range (BVR) Air-to-Air Missile |
| 5875 | (c) Statement I is correct but Statement II is incorrect |
| 5876 | (a) The Tejas Mk1A is currently powered by a fully indigenous Kaveri engine |
| 5877 | (b) Twin-engine supercruise capability |
| 5878 | (b) It provides high-alpha performance and high roll rates. |
| 5879 | (a) I and II only |
| 5880 | (c) Indigenous Aircraft Carrier |
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Attempt each question first, then open the answer and read the explanation. Practise one chapter at a time, note the facts you got wrong and revise them. Repeat the chapter after a few days.
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