Questions

Q:

What is a Contact Force and explain with an example?

Answer

A Contact force is a force applied to a body by another body that is in contact with it. Contact force acts on a point of direct contact between the two objects. This force can either be continuous as a continuous force or can be momentary in the form of an impulse. Contact force is governed by Newton’s Laws.


Examples :: Contact force is responsible for most of the interactions we experience in the daily life.


1. Writing your name with a pen, pushing a car up a hill, lifting an object, etc...


2. Kicking a ball, hammering a nail, etc...


are some of the everyday examples where contact forces are at work.


In the first case, the force is continuously applied by the person on the car or pen or an object while in the second case the force is delivered in a short impulse.


 


Contact forces are often decomposed into orthogonal components


one perpendicular to the surface in contact called the normal force, and


one parallel to the surface in contact, called the friction force.

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Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer , Network Engineer

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Q:

A constitutional convention was called in Philadelphia to frame a new Constitution of America, which came into effect in _________

A) 1776 B) 1789
C) 1781 D) 1780
 
Answer & Explanation Answer: B) 1789

Explanation:
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Filed Under: World History

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Q:

What are three characteristics of the agricultural revolution?

A) Farmers learned to control water through wells and canals B) New tools made it possible for more crops to be grown
C) Crop rotation was invented, making it harder on soil D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
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Filed Under: Indian History
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

'Dona Paula' is one of the most famous and striking monuments located in which state ?

A) Telangana B) Goa
C) Tamil Nadu D) Andhra Pradesh
 
Answer & Explanation Answer: B) Goa

Explanation:
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Filed Under: Famous Places
Exam Prep: Bank Exams , CAT

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Q:

Select the correct statement about lymphocytes.

A) Lymph transport is faster than that occurring in veins B) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles
C) Lymph transport is only necessary when illness causes tissue swelling D) Under normal conditions, lymph vessels are very high-pressure conduits
 
Answer & Explanation Answer: B) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles

Explanation:

Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles is the correct statement regarding lymph transport.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
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Q:

The storage form of glucose in animals is

A) Starch B) Glucose
C) Glycogen D) None of the above
 
Answer & Explanation Answer: C) Glycogen

Explanation:

Glycogen is the storage form of glucose in animals and humans which is analogous to the starch in plants. Glycogen is synthesized and stored mainly in the liver and the muscles.

 

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Filed Under: Biology
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Q:

Who is the author of the book 'The Prince' ?

A) Niccolo Machiaveli B) Emile Zola
C) Bernard Shaw D) V.S. Sharma
 
Answer & Explanation Answer: A) Niccolo Machiaveli

Explanation:
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Filed Under: Books and Authors

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Q:

What is a zombie?

Answer

When a program forks and the child finishes before the parent, the kernel still keeps some of its information about the child in case the parent might need it – for example, the parent may need to check the child’s exit status. To be able to get this information, the parent calls `wait()’; In the interval between the child terminating and the parent calling `wait()’, the child is said to be a `zombie’ (If you do `ps’, the child will have a `Z’ in its status field to indicate this.)

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Subject: Operating Systems Exam Prep: GATE

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