Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - GATE MCQ

The area of an equilateral triangle is √3. What is the perimeter of the triangle?

Arrange the following three-dimensional objects in the descending order of their volumes:
(i) A cuboid with dimensions 10 cm, 8 cm and 6 cm
(ii) A cube of side 8 cm
(iii) A cylinder with base radius 7 cm and height 7 cm
(iv) A sphere of radius 7 cm

An automobile travels from city A to city B and returns to city A by the same route. The speed of the vehicle during the onward and return journeys were constant at 60 km/h and 90 km/h, respectively. What is the average speed in km/h for the entire journey?

A set of 4 parallel lines intersect with another set of 5 parallel lines. How many parallelograms are formed?

To pass a test, a candidate needs to answer at least 2 out of 3 questions correctly. A total of 6,30,000 candidates appeared for the test. Question A was correctly answered by 3,30,000 candidates. Question B was answered correctly by 2,50,000 candidates. Question C was answered correctly by 2,60,000 candidates. Both questions A and B were answered correctly by 1,00,000 candidates. Both questions B and C were answered correctly by 90,000 candidates. Both questions A and C were answered correctly by 80,000 candidates. If the number of students answering all questions correctly is the same as the number answering none, how many candidates failed to clear the test?

If �� ² + �� − 1 = 0 what is the value of

In a detailed study of annual crow births in India, it was found that there was relatively no growth during the period 2002 to 2004 and a sudden spike from 2004 to 2005. In another unrelated study, it was found that the revenue from cracker sales in India which remained fairly flat from 2002 to 2004, saw a sudden spike in 2005 before declining again in 2006. The solid line in the graph below refers to annual sale of crackers and the dashed line refers to the annual crow births in India. Choose the most appropriate inference from the above data.

Let  is equal to 

If  A and B are two independent events such that  then ��(A ∪ B) is equal to

Which one of the following is a leaf fibre?

The pair of fibres most prone to accumulation of static charge is

Heat-setting of melt-spun and drawn Nylon 6 filament yarn under slack condition leads to increase in its

Which one of the fibres, having stress-strain curves as shown in the figure, is the most suitable for making mountaineering ropes?

The technology that produces yarn with the maximum fibre migration is

The cleaning machine, located in the fine cleaning zone of blowroom, uses the following as the opening element

The purpose of having grooves or notches in modern flyer tops in speed frames is to

With time, wind per double traverse in a drum-driven winder

In a loom, seven-wheel take-up motion is

The relative humidity (in %) and temperature (in °C) of standard testing atmosphere are respectively

In Stelometer, if F is the force acting on a fibre bundle and θ is the angle through which the pendulum is moved, then F is directly proportional to

Yarn diameter varies

The constant-rate-of-extension type tensile tester is NOT used for

During bleaching of cotton with hydrogen peroxide, addition of sodium silicate

In dyeing of wool with levelling acid dyes, with time, the pH of dye bath

The discharging agent used in discharge printing of cotton with reactive dyes is

Application of a fluorochemical based finish on a textile fabric imparts
P. Water repellency
Q. Oil repellency
R. Soil repellency
S. Soil release property

If   are three vectors such that is perpendicular to  then the value of λ is ______________