Questions

A modem is nothing but short for Modulator and Demodulator. It is used mostly for connecting to the internet.

A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.

The correct statement among the given options about the process of scientific inquiry is "It is possible to test hypotheses, such as those involving historical events, without conducting experiments."

Although it is not possible to carry out experiments to test hypotheses about evolutionary relationships between living groups or about the timing of the origin of major evolutionary innovations, such hypotheses can be evaluated by making predictions about the expected findings that would result from these hypotheses. Data can then be collected to test whether these predictions are correct.

The world's tallest twisted tower, the Infinity Tower was launched in Dubai Marina on 10 June 2013.

Lean Manufacturing: catching the concept of JIT(Just-in-time) and re-examines it from the client point of view. Anything that is made should put something of valuable to the client’s requirement. For example, if you are manufacturing stereo system for a luxury car, you will imagine from the customer point of view like space occupancy, durability, sound quality, medium or loud sound, etc.

  JIT (Just-in-Time):  This methodology is described to provide that a product or part would arrive just in time to be used. This method saves the price of the unused inventory, and eject the need of piling up inventory.    

The above-given statement is absolutely true. Poorly tuned engines of vehicles will not get good gas mileage.

A poorly running engine may lose power that is needed for normal driving and emergencies, may not start, gets poor fuel economy, pollutes the air, and could stall when you are on the road causing a traffic problem.