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Which of the given fact of the BEL Battle Field Surveillance Radar is false? 1. It is a man portable 2D short-range battlefield and perimeter surveillance radar. 2. It is developed by the the Electronics and Radar Development Establishment (LRDE) and Bharat Electronics Limited (BEL). 3. Upto 10 radars can be networked at a time. 4. It operates over 12 channels in S band.
An aircraft is flying at cruise level with a velocity of 110m/s at an altitude of 10 km and the dynamic pressure is 5.43kN/m2. Now assume the aircraft is flying is at sea level with a speed of 65m/s and the same dynamic pressure. In the above data, the velocity 65m/s refers to __________
The radar returns are generally described by color or level on an aircraft radar display.
A boy standing on the road observes a bird flying in east at an angle of 30°. After some time, he observes the same bird in the west at an angle of 60°. If the bird is flying at a constant height and distance covered by bird is 400 m, find the height at which bird is flying.
A plane flying north at 500 mph passes over a city at 12 noon. A plane flying east at the same altitude passes over the same city at 12.30 pm. The plane is flying east at 400 mph. To the nearest hundred miles, how far apart are the two planes at 2 pm ?
Given below are four jumbled sentences. Select the option that gives their correct order. A. Since then Boeing has received over 5,000 orders for the aircraft and has delivered 371 to date. B. The Max first started flying commercially in 2017. C. Boeing had huge hopes for its 737 Max aircraft and viewed it as a key part of its future. D. However, the company's market value has plummeted by nearly $26 billion since the crash in Ethiopia.
Pulse radar operating at 10GHz frequency has an antenna with a gain of 28 dB and a transmitted power of 2kW. If it is desired to detect a target of cross section 12m2, and the minimum detectable signal is -90 dBm, the maximum range of the radar is:
Students of Primary, Middle, Secondary and Sr. Secondary classes collected donation for a Relief Fund as shown in the pie chart. If the donation collected from Middle classes was Rs.6,750, then what would be the total amount of money collected by Secondary and Sr.Secondary classes?  
Consider the following statements: 1. Secondary consolidation occurs at constant effective stress. 2. Secondary consolidation is related to dissipation of pore water pressure 3. Secondary consolidation occurs due to the readjustment of soil skeleton after a disturbance during primary consolidation. 4. Rate of secondary consolidation is controlled by the viscous adsorbed layer surrounding clay particle in soil. Which of the above statements are correct?
Which among the following statements about Satpura Range is/are correct? 1. Mountain Range Satpura and Vindhya Found in the Eastern part of India. 2. The range, the name of which means “Seven Folds,” forms the watershed between the Narmada (north) and Tapti (south) rivers. 3. If peaks more than 4,000 feet (1,200 meters) high, the Satpura Range includes the Mahadeo Hills to the north, the Maikala Range to the east, and the Rajpipla Hills to the west.