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English grammar error spotting finding correction exercise Practise set 36

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English grammar error spotting correction exercises practice set 36 In the following English grammar error spotting questions, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is No error. Question 1: When I left (1)/ the house at 9 o'clock (2)/ my son was still at home. (3)/ No error (4) Answer Answer : (4) No error Question 2: There is (1)/ only one of his novels (2)/ that are interesting (3)/. No error (4). Answer Answer : (3) is will replace are because – when a Plural Noun is placed with a Singular Subject (one, each, etc.) with of, the Verb will be Singular. Look at the example given below : Only one of his employees is sincere at work. Only one of his students is awarded the ‘Scholar award’. Hence, that is interesting is the right usage. Question 3: The hockey match (1)/ between India and Pakistan (2)/ was much exci
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pneumatic comparator and solex pneumatic comparator

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Principle of pneumatic comparator The measurement is made by taking reading using master gauge of known accuracy and comparing with component reading It uses a controlled, pressurised jet of air to measure small dimensional variation in the size of component The working principle of pneumatic comparator depends on the flow of air between the gauge head and the component being checked Important characteristics Very high magnifications are possible It can be used to measure diameters, length, squareness, parallelisms, concentricity,taper, and other geometric conditions. Internal dimensions can be readily measured , in other words, while measuring a bore it can reveal complete details of size, taper, straightness,camber and bell mouth etc. It is independent of the operator skill High pressure air gauging can be done by cleaning the parts which helps to eliminate errors due to dirt and foreign matter. As there is no physical contact made either with the setting gauge (or)
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interferometer and interferometry

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Interferometer Interferometer is an optical device used for measuring flatness of a surface and also for determining the thickness of slip gauges. It is an extension of the application of optical flat. Interferometers are based upon the principle of “ interference “ and employ wavelength of light as their measuring units. The interferometers make use of beam divider that splits an incoming ray into two parts. These two parts of the ray travel along different paths until they are recombined, usually in the same beam divider. An interferometer is an optical device which utilizes the effect of interference. Typically, it starts with some input beam, splits it into two separate beams with some kind of beam splitter (a partially transmissive mirror), possibly exposes some of these beams to some external influences (e.g. some length changes or refractive index changes in a transparent medium), and recombines the beams on another beam splitter. The power or the spatial shape of the resulti
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