Questions

Q:

Improve the bracketed part of the sentence.
The student of human history can draw on many more natural experiments (than) just comparisons among the five inhabited continents.

A) to B) of
C) for D) no improvement
 
Answer & Explanation Answer: D) no improvement

Explanation:
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Q:

After cleaning the thermometer should be placed in

A) Sanitizer B) Ice cold water
C) Mercury D) None of the above
 
Answer & Explanation Answer: A) Sanitizer

Explanation:
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Q:

As the object covers equal distances in equal intervals of time, it is said to be in ____________ motion.

A) uniform B) linear
C) translational D) equilibrium
 
Answer & Explanation Answer: A) uniform

Explanation:
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Q:

What is multi tasking, multi programming, multi threading?

Answer

Multi programming: Multiprogramming is the technique of running several programs at a time using timesharing. It allows a computer to do several things at the same time. Multiprogramming creates logical parallelism. The concept of multiprogramming is that the operating system keeps several jobs in memory simultaneously. The operating system selects a job from the job pool and starts executing a job, when that job needs to wait for any i/o operations the CPU is switched to another job. So the main idea here is that the CPU is never idle. 


Multi tasking: Multitasking is the logical extension of multiprogramming .The concept of multitasking is quite similar to multiprogramming but difference is that the switching between jobs occurs so frequently that the users can interact with each program while it is running. This concept is also known as time-sharing systems. A time-shared operating system uses CPU scheduling and multiprogramming to provide each user with a small portion of time-shared system. 


Multi threading: An application typically is implemented as a separate process with several threads of control. In some situations a single application may be required to perform several similar tasks for example a web server accepts client requests for web pages, images, sound, and so forth. A busy web server may have several of clients concurrently accessing it. If the web server ran as a traditional single-threaded process, it would be able to service only one client at a time. The amount of time that a client might have to wait for its request to be serviced could be enormous. So it is efficient to have one process that contains multiple threads to serve the same purpose. This approach would multithread the web-server process, the server would create a separate thread that would listen for client requests when a request was made rather than creating another process it would create another thread to service the request. To get the advantages like responsiveness, Resource sharing economy and utilization of multiprocessor architectures multithreading concept can be used.

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Q:

Which of the following professionals cannot diagnose a patient?

A) Nurse B) Specialist
C) Physician's assistant D) Medical doctor
 
Answer & Explanation Answer: A) Nurse

Explanation:

A nurse cannot diagnose a patient among the given options. 

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Q:

Which country is the largest producer of sugarcane in the world?

A) Brazil B) Russia
C) China D) India
 
Answer & Explanation Answer: A) Brazil

Explanation:

The country Brazil is the largest producer of sugarcane in the world.

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Q:

Did mercury cure syphilis?

Answer

Mercury was the remedy of choice for syphilis in Protestant Europe. Until the early 20th century, the primary treatment for syphilis was mercury, in the form of calomel, ointments, steam baths, pills, and other concoctions.


Mercury was already being used in Western Europe to treat skin diseases.

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Q:

Teens who drink are at risk of

A) HIV and other STDs B) becoming an alcoholic
C) date rape D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

teens_drinking_are_at_risk_of1539257520.jpg image

Teens drinking are at risk of date rape, becoming an alcoholic, HIV and other STDs.

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