In a mixer, the quantity, (v. L/D) is termed as __________ number(where, v = longitudinal velocity of material, L = length of the mixer, D = diffusivity in axial mixing).

In the last month the company decided to increase the cost of its mixer by 10 percent. What is the present price of the mixer? I. The cost of mixer and juicer together was Rs 2850 a month ago. II. The amount of 10% increase on the mixer comes to Rs 220.

A

If the data in statement I alone are sufficient to answer the question

B

If the data in statement II alone are sufficient answer the question

C

If the data either in I or II alone are sufficient to answer the question;

D

If the data even in both the statements together are not sufficient to answer the question

The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, N_Pr = N_Sc = __________

A

1

B

0.5

C

10

D

0

Statement 1: Flat blade/curve blade/arrow head/vaned disc turbines are generally used for gas-liquid mixing. Statement 2: Helical screw/ribbon mixer/gate anchor are generally used for solid-solid mixing.

A

True, False

B

True, True

C

False, False

D

False, True

In fluid flow and heat & mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are

A

μ, α and θ all have units of m/s

B

μ, α and θ all have units of m²/s

C

α and θ have units of m²/s, while μ has unit of m/s

D

α and θ have units of m/s, while μ has unit of m²/s

A box is termed as eraser, an eraser is termed as pen, a pen is termed as stick, and a stick is termed as plant. Then in the exam a student will write with ___.

A

plant

B

pen

C

stick

D

eraser

Consider the following statements
1. The temporal-lobe language region is termed as Wernicke's area
2. The upper temporal lobe language region is termed as Broca's area
3. The lower frontal lobe language area is termed as Wernicke's area
4. The language region in the lower frontal lobe is termed as Broca's area
Select the correct answer from the options given below:

A

1, 2 and 3

B

1 and 4

C

2 and 3

D

Only 4

If the F1 generation produced by a cross between axial and terminal flower-bearing plants produces only axial flowers, the F2 progeny produced by the self-crossing of F1 will also produce only axial flowers.

A

True

B

False

The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. Which of the following, if given to the mixing vat operator as an instruction, would not determine the setting of any other valve ?

A

S must be open

B

T must be open

C

U must be open

Mixing Index is a ratio of the standard deviation of various products during mixing to that at zero mixing.

A

True

B

False

The ratio of momentum diffusivity to thermal diffusivity is the __________ number.

A

Prandtl

B

Nusselt

C

Stanton

D

Grashoff

In a mixer, the quantity, (v. L/D) is termed as __________ number(where, v = longitudinal velocity of material, L = length of the mixer, D = diffusivity in axial mixing).

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