Bank PO 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:

What is 7 + 7 ÷ 7 + 7 × 7 - 7 =

A) 0 B) 42
C) 50 D) 57
 
Answer & Explanation Answer: C) 50

Explanation:

Given 7 + 7/7 + 7 x 7 - 7

By using BODMAS rule,

7 + 1 + 7 x 7 - 7

= 8 + 49 - 7

= 57 - 7

= 50.

 

Hence 7 + 7/7 + 7 x 7 - 7 = 50.

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Filed Under: Mathematical Operations
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Q:

All of these are exemptions from local real property taxes EXCEPT :

A) Low-income homeowner's exemption B) Homeowner's exemption
C) Veteran's exemption D) Senior citizen's tax exemption
 
Answer & Explanation Answer: A) Low-income homeowner's exemption

Explanation:

Under state law limited exemptions from local real property taxes for individuals who qualify are senior citizens(blind and disabled persons), who may defer their taxes; Veterans, who receive $4000 off assessed value; and homeowners, who receive $7000 off assessed value.

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Filed Under: Bank Interview
Exam Prep: Bank Exams , CAT
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1 3396
Q:

How many such digits are there in the number 84315269 each of which is as far away from the beginning of the number as when the digits are rearranged in ascending order?

A) None B) one
C) two D) three
 
Answer & Explanation Answer: D) three

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability
Exam Prep: Bank Exams
Job Role: Bank PO

7 3396
Q:

What rights does the Declaration of Independence express?

A) The right to remain silent when interrogated by police B) The right to citizenship
C) Legal rights of citizens D) Human rights of citizens, including life and liberty
 
Answer & Explanation Answer: C) Legal rights of citizens

Explanation:

The Declaration of Independence express Legal rights of citizens.

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Filed Under: Indian History
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1 3395
Q:

Handwritten wills are also known as which of the following?

A) Homographic B) Solographic
C) Holographic D) Monographic
 
Answer & Explanation Answer: C) Holographic

Explanation:

handwritten_wills_are_also_known_as_which_of_the_following1552114843.jpg image

Handwritten wills are also known as Holographic wills since they are made by the persons called testators without notary or any witness.

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Filed Under: General Awareness
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Q:

Economists refer to purchases of stocks and bonds as investment.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:
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Subject: Bank Interview
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Q:

a2 + b2 + c2 -ab- bc - ca = 0, iff

A) abc = -1 B) a = b = c
C) abc = 1 D) abc = 0
 
Answer & Explanation Answer: B) a = b = c

Explanation:

Here given formula is 

a2 + b2 + c2 -ab- bc - ca = 0

and it is possible if and only if a = b = c.

From the trial and error method, 

1) Let a = b = c = 1

Now substitute these values of a, b, c in the above formula.

We get 1 + 1 + 1 - 1 - 1 - 1 = 3 - 3 = 0

 

2) Now, let a = b = c = 4

Now substitute these values of a, b, c in the above formula.

We get 16 + 16 + 16 - 16 - 16 - 16 = 48 - 48 = 0.

 

Hence, it is possible that 

a2 + b2 + c2 -ab- bc - ca = 0 iff  a = b = c.

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Filed Under: Arithmetical Reasoning
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