Chemical Engineering Gate 2020 Questions with Answer

Ques 27 GATE 2020

The maximum value of the function f(x)=-5/3 x³+10x²-15x+16 in the interval (0.5,3.5) is

Ques 28 GATE 2020

Liquid water is pumped at a volumetric flow rate of 0.02 m³s^-1 from Tank I to Tank II, as shown in the figure.

Ques 29 GATE 2020

A vertically held packed bed has a height of 1 m, and a void fraction of 0.1. when there is no flow through the bed. The incipient (minimum) fluidization is set in by injection of a fluid of density 1 kg m^-3. The particle density (ρ_p) of the solids is 3000 kg m^-3. Acceleration due to gravity is 9.81 m s^-2. The pressure drop (in Pa) across the height of the bed is _______ (round off to nearest integer).

Ques 30 GATE 2020

Consider an incompressible flow of a constant property fluid over a smooth, thin and wide flat plate. The free stream flows parallel to the surface of the plate along its length and its velocity is constant. Value of the Reynolds number at a distance of 2.0 m from the leading edge of the plate is 8000. The flow within the boundary layer at a distance of 1.0 m from the leading edge of the plate is

Ques 31 GATE 2020

Consider steady, laminar, fully developed flow of an incompressible Newtonian fluid through two horizontal straight pipes, I and II, of circular cross section. The volumetric flow rates in both the pipes are the same. The diameter of pipe II is twice the diameter of pipe I, i.e., d_II=2d_I. The ratio of the shear stress at the wall of pipe I to the shear stress at the wall of pipe II is

Ques 32 GATE 2020

A student performs a flow experiment with Bingham Plastic under fully developed laminar flow conditions in a tube of radius 0.01 m with a pressure drop (ΔP) of 10 kPa over tube length (L) of 1.0 m. The velocity profile is flat for rc and parabolic for r≥r_c, as shown in the figure.

Ques 33 GATE 2020

A U-tube manometer contains two manometric fluids of densities 1000 kg m^-3 and 600 kg m^-3. When both the limbs are open to atmosphere, the difference between the two levels is 10 cm at equilibrium, as shown in the figure.

Ques 34 GATE 2020

Rajiv Gandhi Khel Ratna Award was conferred _______ Mary Kom, a six-time world champion in boxing, recently in a ceremony _______ the Rashtrapati Bhawan (the President's official residence) in New Delhi.

Ques 35 GATE 2020

Despite a string of poor performances, the chances of K. L. Rahul's selection in the team are _______

Ques 36 GATE 2020

Select the word that fits the analogy:
Cover: Uncover :: Associate: _______

Ques 37 GATE 2020

Hit by floods, the kharif (summer sown) crops in various parts of the country have been affected. Officials believe that the loss in production of the kharif crops can be recovered in the output of the rabi (winter sown) crops so that the country can achieve its food-grain production target of 291 million tons in the crop year 2019-20 (July-June). They are hopeful that good rains in July-August will help the soil retain moisture for a longer period, helping winter sown crops such as wheat and pulses during the November-February period.
Which of the following statements can be inferred from the given passage?

Ques 38 GATE 2020

The difference between the sum of the first 2n natural numbers and the sum of the first n odd natural numbers is

Ques 39 GATE 2020

Repo rate is the rate at which Reserve Bank of India (RBI) lends commercial banks, and reverse repo rate is the rate at which RBI borrows money from commercial banks.
Which of the following statements can be inferred from the above passage?