AAI Technical Rapid Quiz-22

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Question 1

Which of the following ratio is known as schmidt number ?

• AProduct of mass transfer coefficient and diameter to diffusivity of fluid
• BKinematic viscosity to thermal diffusivity of fluid
• CKinematic viscosity to diffusion coefficient of fluid
• DThermal diffusivity to diffusion coefficient of fluid

Question 2

A circular disc rolls down an inclined plane, the fraction of its total energy associated with its rotation is ______________.

• A1/2
• B1/3
• C1/4
• D2/3

Question 3

Pressure intensifier increases the pressure in proportion to ________.

• Aratio of diameters
• Bsquare of ratio of diameters
• Cinverse ratio of diameters
• Dsquare of inverse ratio of diameters

Question 4

For mounting several patterns at a time, which of the following type of pattern is used?

• Acombined pattern
• Bloose, piece pattern
• Csweep pattern
• Dmatch plate pattern

Question 5

For an element under the effect of biaxial state of normal stress, the normal stresses are on a 45 plane is equal to __________.

• ADifference of normal stresses
• BSum of normal stresses
• CHalf of the sum of normal stresses
• DHalf of the difference of normal stresses

Question 6

Throw of a cam is the maximum distance of the follower from:

• ABase circle
• BPitch circle
• CRoot circle
• DPrime circle

Question 7

If a reheater is added to a Rankine Cycle, then usually ___________.

• Athe net work increases and dryness fraction at the exit of turbine increases.
• Bthe net work and efficiency decrease
• Cthe net work remains same and efficiency increases
• Dthe net work increases and efficiency remains same

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