GATE Questions

Q:

While selling a router, a shopkeeper gives a discount of 15%. If he gives a discount of 20%, he earns Rs. 51 less as profit. What is the original marked price of the router?

A) Rs. 1000 B) Rs. 1020
C) Rs. 1040 D) Rs. 980
 
Answer & Explanation Answer: B) Rs. 1020

Explanation:

Let the marked price of the router be Rs. P

From the given data,

P x 85100 - P x 80100 = 51P x 5100 = 51 P = 51005 = 1020 

 

Hence, the original marked price of the router is Rs. 1020.

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Filed Under: Profit and Loss
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Q:

Radioactive decay is likely to occur when

A) an atom has too many neutrons or protons B) protons break into neutrons and electrons
C) an atom has too many electrons D) atoms collide with one another
 
Answer & Explanation Answer: A) an atom has too many neutrons or protons

Explanation:

Radioactive decay is likely to occur when the nuclei of an atom doesn't have enough binding energy to hold the nucleus together due to excess of rotons or nutrons in it.

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Filed Under: Chemistry
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Q:

Warts are contagious.

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

Explanation:

Yes. Warts are contagious.


You can get warts from touching a wart on someone else's body or by coming in contact with surfaces that touched someone's warts, such as towels or bathmats.


warts_are_contagious1532510865.jpg image


 


Hence, the given statement that, 'Warts are contagious' is TRUE.

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Subject: General Science
Exam Prep: AIEEE , Bank Exams , GATE
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Q:

How many black cards are in a deck?

A) 13 B) 26
C) 39 D) 52
 
Answer & Explanation Answer: B) 26

Explanation:

The total cards in the deck are 52. These 52 cards are divided into 4 suits of 13 cards in each suit. Two Red suits and Two black suits.

Red suits :: Heart suit and Diamond suit = 26

Black suits :: Spade suit and Club suit = 26.

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Q:

Shares of a company given in exchange for work done are called ?

A) Secondary shares B) Hot equity
C) Preferential shares D) Sweat equity shares
 
Answer & Explanation Answer: D) Sweat equity shares

Explanation:

A sweat equity share is an equity share issued by the company to employees or directors at a discount or for consideration other than cash for providing know-how or making available rights in the nature of intellectual property rights or value additions.

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Filed Under: General Awareness
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Q:

Current search engines function by recognizing keywords.

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

Explanation:

A search engines are a software systems used for searching about any information in the world on the web.


                         current_search_engines_function_by_recognizing_keywords1536129682.png image


Search engines like Google, Bing, Internet explorer, Yahoo, etc... functions by providing relevant search results for the keywords user searches. 


 


Hence, the given statement is TRUE.

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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:

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
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