Questions

Q:

Who Invented Traffic Signal ?

A) Lewis Edson Waterman B) Levi Strauss
C) Percy LeBaron Spencer D) Garrett Augustus Morgan
 
Answer & Explanation Answer: D) Garrett Augustus Morgan

Explanation:
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Filed Under: Inventions

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Q:

Train A, travelling at 84 kmph, overtook train B, traveling in the same direction, in 10 seconds. If train B had been traveling at twice its speed, then train A would have taken 22.5 seconds to overtake it. Find the length of train B, given that it is half the length of train A.

A) 180 m B) 100 m
C) 200 m D) 150 m
 
Answer & Explanation Answer:

Explanation:

Let speed of train B be x m/s And length of train B be y m
Then length of train A is 2y m
Speed of train A = 84 × 5/18 = 210/9 m/s = 70/3 m/s
A.T.Q, (2y+y)/10 = 70/3 − x .............(i)
and (2y+y)/ 22.5 = 70/3 − 2x ................(ii)
solving (i) and (ii), y = 50 m

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Q:

The transport phenomenon occurs only in _____ state of a gas and is ______

A) Non-equilibrium, irreversible B) Non-equilibrium, reversible
C) equilibrium, irreversible D) equilibrium, reversible
 
Answer & Explanation Answer: C) equilibrium, irreversible

Explanation:

The transport phenomenon occurs only in equilibrium state of a gas and is irreversible.

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

GNLF stands for

A) Gorkha National Liberation Front B) Gross National Liberation Form
C) Both option A and B D) None of the above
 
Answer & Explanation Answer: A) Gorkha National Liberation Front

Explanation:

GNLF stands for Gorkha National Liberation Front.

 

Gorkha National Liberation Front (GNLF) is a political party in the Darjeeling District of West Bengal, India. It was formed in 1980 by Subhash Ghisingh with the objective of demanding a Gorkhaland state within India.

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

2 2500
Q:

Give two ways of converting a two input NAND gate to an inverter.

Answer

One way is shorting the two inputs of the NAND gate and passing the input.


truth table:


A B output


1 1 0


0 0 1


The second way is passing the input to only one input (say A) of the NAND gate. Since the other input  (say B is floating, it is always logic one.


Truth table:


A B output


1 1 0 


0 1 1

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Subject: Hardware

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Q:

Which is largest and smallest bird ?

Answer


Largest bird is Ostrich and Smallest Bird is Humming Bird

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Q:

Write a c program for insertion sort.

Answer

#include<stdio.h>
int main(){

  int i,j,s,temp,a[20];

  printf("Enter total elements: ");
  scanf("%d",&s);

  printf("Enter %d elements: ",s);
  for(i=0;i<s;i++)
      scanf("%d",&a[i]);

  for(i=1;i<s;i++){
      temp=a[i];
      j=i-1;
      while((temp<a[j])&&(j>=0)){
      a[j+1]=a[j];
          j=j-1;
      }
      a[j+1]=temp;
  }

  printf("After sorting: ");
  for(i=0;i<s;i++)
      printf(" %d",a[i]);

  return 0;
}

Output:
Enter total elements: 5
Enter 5 elements: 3 7 9 0 2
After sorting:  0 2 3 7 9

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Subject: Programming

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Q:

Galloping inflation is also known as

A) Hyperinflation B) Jumping inflation
C) Moderate inflation D) None
 
Answer & Explanation Answer: B) Jumping inflation

Explanation:

Galloping inflation is also known as jumping inflation.

 

It refers to a type of inflation that occurs when the prices of goods and services increase at the two-digit or three-digit rate per annum.

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Filed Under: Finance
Exam Prep: Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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