Defence Exams - General Knowledge & Military Awareness

Applied Physics, Chemistry & Defence Technology question bank (General Science & Defence Technologies)

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Q1.

Applied Ballistics & Physics: When an artillery gun fires a shell of mass 10 kg with muzzle velocity $800\text{ m/s}$ in 'Mechanics: Newton's Laws, Projectile Motion, Ballistics and Recoil of Guns', what recoil velocity is imparted to the gun of mass 2000 kg?

(A)

$4\text{ m/s}$ in opposite direction ($v = \frac{m_s v_s}{M_g} = \frac{10 \times 800}{2000}$) (Mechanics: Newton's Laws, Projectile Motion, Ballistics and Recoil of Guns)

(B)

$2\text{{ m/s}}$

(C)

$8\text{{ m/s}}$

(D)

$0.4\text{{ m/s}}$

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Q2.

Strategic Operations: In which year and under what operational codename did the Indian Armed Forces successfully secure the Siachen Glacier in 'Mechanics: Newton's Laws, Projectile Motion, Ballistics and Recoil of Guns'?

(A)

1984 under Operation Meghdoot (Mechanics: Newton's Laws, Projectile Motion, Ballistics and Recoil of Guns)

(B)

1971 under Operation Trident

(C)

1999 under Operation Vijay

(D)

1965 under Operation Riddle

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