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Which of the following statements are true/false?
1. Ludwig von Bertalaffy is called the father of system approach.
2. System approach comprises of sub-system, synergy, a feedback mechanism and defined boundaries.
3. The management science school emerged as a quantitative approach to solve managerial problems.
4. Operation management, management information system are theories under system approach.
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.
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:
Which of the following statements are true/false?
1. A minimum rate of wages for the time spent by employees for the production of output is minimum time rate.
2. Minimum piece rate is the rate based on the quantity of the output employees have produced.
3. The guaranteed time rate is a minimum rate of remuneration to apply in the case of employees employed on piece work for the purpose of securing to such employees a minimum rate of wages on a time work basis.
4. A minimum rate of remuneration to apply in the case of employees employed on piece work for the purpose of securing to such employees a minimum rate of wages on a time work basis is overtime rate.
Which of the following is/are approach(es) adopted by social scientists in understanding sociology? I. Comparative Approach II. Functionalist Approach III. Historical Approach IV. Statistical Approach
Under which of the following approaches, the cost of equity is assumed to increase linearly with leverage, i.e, the average cost of capital remains constant with increased use of leverage?  1. Net Operating Income Approach 2. Net Income Approach 3. Traditional Approach 4. Walter Approach
Mohan traveled five cities (A, B, C, D and E) starting from home by a car which has a mileage such that the car can travel 10 km in 1 liter petrol. Distance between city A and B is twice the distance between home to city A. Distance between city B and C is thrice the distance between home to city A. Distance between city C and D is 100. Distance between city D and E is 1.5 times than the distance between B and C. Average distance traveled by Mohan was 41 km between five cities. Find how much petrol was needed by Mohan to travel from city B to D.
Questions below followed by two quantities. Find the relation between them. The table shows the distance travelled by five different boats upstream, the speed of the boat in still water and the time taken by them to cover the upstream distance. Boats Upstream distance Speed of boat Time taken  A  240 km  15 km/hr  20 hr  B  150 km  10 km/hr  25 hr  C  350 km  20 km/hr  50 hr  D  96 km  8 km/hr  16 hr  E  126 km  26 km/hr  9 hr   Quantity I: Boat B travel 238 km distance downstream in certain time. How much downstream distance boat D will cover at the same time? Quantity II: Boat E travel 722 km distance downstream in certain time. How much downstream distance boat A will cover at the same time?
The safe speed for a train rounding a corner is proportional to the square root of the radius . If the safe speed for a curve of radius 49 meters is 28 km/h. The safe speed for a curve of radius 64 metes is :
A typical radar is located at 4 meter distance from an object. If radar transmits signal from that position then, signal strength S will be __________