#Mechanical Engineering

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If a and b are integers and a-b is even, which of the following must always be even

Saurabh 12th Jan, 2018

Answer (1)

abhishek gade 23rd Feb, 2018

Case 1 : a and b both are odd

Case 2 : a and b both are even

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Question : Comprehension:

In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

A robot is a mechanical or virtual artificial agent, usually an electromechanical machine that is (1)__ by a computer programme or electronic circuitry. In general, robots can be autonomous or semi-autonomous and are now used in different fields. They have replaced (2)_ in performing repetitive and dangerous tasks which humans prefer not to do, or are unable to do because of size limitations, or which take place in extreme (3)__ such as outer space or the bottom of the sea. For instance, robots can now be used in industry, as in car manufacturing, or they can be used in homes to do the (4)_. Some robots may respond to speech or even be medical operating tools. There are concerns about the increasing use of robots and their role in society. Robots are blamed for the rising (5)______ as they replace workers in increasing numbers of functions.

Question:

Select the most appropriate option to fill in the blank number 1.
Option 1: included
Option 2: chased
Option 3: guided
Option 4: challenged

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