Questions

Q:

A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because 

A) the floor and carpet are at different temperatures B) the stone conveys the heat away from the feet more rapidly than the carpet
C) the carpet is a better conductor of heat than the stone D) the human body maintains a constant temperature
 
Answer & Explanation Answer: B) the stone conveys the heat away from the feet more rapidly than the carpet

Explanation:

Both the floor and the carpet have the same temperature as both are exposed to the same atmosphere. But the former conducts away the heat from the feet better than the carpet as the latter is a non-conductor. So the feet losing more heat, the floor appears cooler to the feet.

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Filed Under: Physics

6 6642
Q:

Why does'nt the hydrogen atom emit X-rays?

A) It is very small in size B) It has only one electron
C) Its energy levels are very close to each other D) it is highly electropositive
 
Answer & Explanation Answer: C) Its energy levels are very close to each other

Explanation:

For an atom to emit X-rays it should have difference in energy levels

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Filed Under: Physics

9 6641
Q:

A person who writes decoratively

A) Choreographer B) Cartographer
C) Calligrapher D) Collier
 
Answer & Explanation Answer: C) Calligrapher

Explanation:

A person who writes decoratively is known as Calligrapher.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

3 6640
Q:

What do the functions atoi(), itoa() and gcvt () do? Show how would you use them in a program.

Answer

atoi()         Converts a string to an integer.


itoa()         Convert an integer to a string


gcvt()        Converts a floating-point number to a string


 


#include "stdlib.h"


main()


{


      char s[] = "12345";


      char buffer [15], string[20];


      int i;


      


      i = atoi (s);


      printf("\n%d",i);


 


       gcvt (20.141672, 4, buffer);


       printf ("\n%s", buffer);


 


       itoa(15, string,2);


        printf ("\n%s", string);


}

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Subject: Programming

2 6633
Q:

Which of the following features may occur when lava cool at the surface

A) Basalt plateau B) Still
C) Batholith D) Dyke
 
Answer & Explanation Answer: A) Basalt plateau

Explanation:
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Filed Under: World Geography

5 6631
Q:

Which alphabet is a vegetable?

A) C B) T
C) P D) B
 
Answer & Explanation Answer: C) P

Explanation:

The letter 'P' sounds same as the vegetable 'PEA'.

 

Hence P is an alphabet which is a vegetable.

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Filed Under: Logic Puzzles
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

6 6622
Q:

Which is the first country in the world to use drones for national mail service?

A) Russia B) France
C) Sweden D) China
 
Answer & Explanation Answer: B) France

Explanation:

France became the first country in the world to use drones for national mail service.

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Filed Under: General Awareness
Exam Prep: Bank Exams
Job Role: Bank Clerk

33 6615
Q:

India's first amphibious bus project has been launched by which state government ?

A) Telangana B) Assam
C) Punjab D) Gujarat
 
Answer & Explanation Answer: C) Punjab

Explanation:
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Filed Under: Indian Economy
Exam Prep: CAT
Job Role: Bank PO

17 6613