GATE XE format:mcq PYQs & Answers — Page 46

Questions 451–460 of 959. Imported answers require independent review unless marked reviewed.

A fluid is in solid body rotation in a cylindrical container of radius

rotating with an angular velocity

. The circulation per unit area around a circular loop in the horizontal plane of radius

(

), whose center coincides with the axis of rotation is

Your answerChoose one option.

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Consider a layer of atmosphere where temperature increases with height. If the concentration of a vertically well-mixed greenhouse gas suddenly increases in this layer, then an immediate consequence is that

Your answerChoose one option.

infrared radiation leaving the top of the layer decreases.

infrared radiation leaving the top of the layer increases.

infrared radiation leaving the top of the layer remains unchanged.

the layer becomes optically thinner to infrared radiation.

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Consider an atmosphere where the mole fractions of N₂, Ar and CO₂ are 7.81×10⁻¹, 9.34×10⁻³ and 4.05×10⁻⁴, respectively. This atmosphere exchanges gases with sea water below having temperature and salinity of 20 °C and 35 psu, respectively. In the absence of biological and chemical activity, relative concentrations of dissolved gases in the surface sea water at equilibrium are ordered as

Your answerChoose one option.

[N₂] > [Ar] > [CO₂]

[CO₂] > [N₂] > [Ar]

[N₂] > [CO₂] > [Ar]

[Ar] > [CO₂] > [N₂]

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Gauri said that she can play the keyboard ______ her sister.

Your answerChoose one option.

as well as

as better as

as nicest as

as worse as

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A transparent square sheet shown above is folded along the dotted line. The folded sheet will look like ______.

Diagram for Engineering Sciences question 2

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Diagram for Engineering Sciences question 2 (figure 2)

Diagram for Engineering Sciences question 2 (figure 3)

Diagram for Engineering Sciences question 2 (figure 4)

Diagram for Engineering Sciences question 2 (figure 5)

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is the angle, in degrees, between the longest diagonal of the cube and any one of the edges of the cube, then,

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, then the value of

is:

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Pen : Write :: Knife :

Which one of the following options maintains a similar logical relation in the above?

Your answerChoose one option.

Vegetables

Sharp

Cut

Blunt

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Listening to music during exercise improves exercise performance and reduces discomfort. Scientists researched whether listening to music while studying can help students learn better and the results were inconclusive. Students who need external stimulation for studying fared worse while students who did not need any external stimulation benefited from music.

Which one of the following statements is the CORRECT inference of the above passage?

Your answerChoose one option.

Listening to music has no effect on learning and a positive effect on physical exercise.

Listening to music has a clear positive effect both on physical exercise and on learning.

Listening to music has a clear positive effect on physical exercise. Music has a positive effect on learning only in some students.

Listening to music has a clear positive effect on learning in all students. Music has a positive effect only on some students who exercise.

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A jigsaw puzzle has 2 pieces. One of the pieces is shown above. Which one of the given options for the missing piece when assembled will form a rectangle? The piece can be moved, rotated or flipped to assemble with the above piece.