ESE 90 DAYS PLAN_Fluid Properties for ESE & GATE CE Exams

Question 1

Consider the following statements.

i. Dilatant fluid is shear thickening, increasing its resistance with increasing strain rate.

ii. Pseudo plastic is shear thinning fluid and it is less resistant at high strain rate. iii. The fluids which require a gradually increasing shear stress to maintain constant strain rate are called rheopectic fluid

Select the correct code.

Question 2

The relative humidity h is a measure of air’s capacity, at its existing temperature, to absorb further moisture, and is defined by the relation

Where: e = vapour pressure

e_s = saturation vapour pressure

Question 3

Consider the following statements in the context of capillary pressure in soils :
1) Pore water pressure is negative in capillary zone.
2) Water is in tension in capillary zone.
3) Capillary pressure is more in coarse grained soils.
Which of the above statements are correct?

Question 4

Direction: Each of the question consist of two statements, one labeled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answer to these items using the codes given below:

Statement (I): Reynolds number must be the same for model and the prototype when, both are tested as immersed in a subsonic flow.
Statement (II): A model should be geometrically similar to the prototype.

Question 5

Direction: Each of the question consist of two statements, one labeled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answer to these items using the codes given below:

Statement (I): Pipes carrying water are anchored at bends and other points of unbalanced thrusts
Statement (II): Pipes are anchored by firmly embedding In massive blocks of concrete or masonry to counter side thrusts due to hydrodynamic forces exerted on the joints.