Failure of the <u>Brake master </u>cylinder will often result in sudden unexpected loss of the ability to stop the vehicle
<u>Explanation:</u>
The ability to stop the vehicle lies with the Brakes. If brakes of a vehicle do not work properly then it might become difficult to stop the vehicle. This happens when a cylinder called brake master cylinder fails. 
The brake master cylinder might not work properly with the passage of time or it can form internal leaks. This is the master cylinder and it controls other cylinders in a vehicle. Its failure affect the brakes badly, it will be unsafe to drive such a vehicle.
 
        
             
        
        
        
Answer:
import numpy as np
import matplotlib.pyplot as plt
def calculate_pi(x,y):
    points_in_circle=0
    for i in range(len(x)):
        if np.sqrt(x[i]**2+y[i]**2)<=1:
            points_in_circle+=1
        pi_value=4*points_in_circle/len(x)
        return pi_value
length=np.power(10,6)
x=np.random.rand(length)
y=np.random.rand(length)
pi=np.zeros(7)
sample_size=np.zeros(7)
for i in range(len(pi)):
    xs=x[:np.power(10,i)]
    ys=y[:np.power(10,i)]
    sample_size[i]=len(xs)
    pi_value=calculate_pi(xs,ys)
    pi[i]=pi_value
  
print("The value of pi at different sample size is")
print(pi)
plt.plot(sample_size,np.abs(pi-np.pi))
plt.xscale('log')
plt.yscale('log')
plt.xlabel('sample size')
plt.ylabel('absolute error')
plt.title('Error Vs Sample Size')
plt.show()
Explanation:
The python program gets the sample size of circles and the areas and returns a plot of one against the other as a line plot. The numpy package is used to mathematically create the circle samples as a series of random numbers while matplotlib's pyplot is used to plot for the visual statistics of the features of the samples.
 
        
             
        
        
        
Answer:
3) A Single linked list is a sequence of elements in which every element has link to its next element in the sequence.
DATA	LINK
DATA stores actual value , LINK stores address of next node
As per information given in question, letters at the even addresses are items in linked list and the odd addresses will be used as links.
Even Address Odd Address
12 (Stores 't')	13 (Used as link)
14 (Stores 'm')	15 (Used as link)
16 (Stores 'a')	17 (Used as link)
18 (Stores 'r')	19 (Used as link)
20 (Stores 's')	21 (Used as link)
Numbers represented by circle are addresses of respective nodes. Here Front or Head has address 16. Which represents the Head Node.
Following image represents the word "smart" with respective nodes and their addressing.
Numbers represented by circle are addresses of respective nodes.
The head pointer is: 20
 
        
             
        
        
        
The answer to this question is a firewall. A Firewall is a network
security system that blocks and prevent unauthorized use or access of company’s
network. Firewall is also a program that screens and restricts viruses and other
users like hackers to reach the network through the internet. 
 
        
             
        
        
        
Answer and Explanation:
Some of the negative aspects of robots at work place:
- Lesser flexibility
- Higher maintenance and installation cost
- Future insecurity and risk if the system malfunctions
- A decline in the opportunities for humans
- Unemployment as a result of automation and robot regulated work place.
Some of the positive aspects of robots at work place:
- Higher accuracy 
- Higher speeds 
- More work in less time
- Productivity and hence efficiency will increase
- Cost of some operations is reduced.
- Ease of employing in dangerous and hazardous fields by using specific robots for each task