Free Bachelor of Chemical Engineering Questions and Answers

Question 1

Which of the following is not a gadget that measures pressure?

Accepted Answer

Galvanometer

Answer

A manometer and a barometer are both instruments specifically designed to measure pressure. A manometer typically measures fluid pressure differences, while a barometer measures atmospheric pressure. A galvanometer, however, is an electromechanical instrument used for detecting and measuring electric current, not pressure.

Question 2

Which of the following is used to assess liquid pressure only?

Accepted Answer

Piezometer

Answer

A piezometer is a simple device used to measure the static pressure of a liquid at a specific point within a system. It typically consists of a vertical tube connected to the liquid, where the height of the liquid column indicates the pressure. Unlike manometers, which can measure gas or liquid pressure differences, piezometers are specifically designed for liquid pressure measurement.

Question 3

Which of the following qualifies as a state function?

Accepted Answer

Entropy

Answer

In thermodynamics, a state function (or point function) is a property of a system that depends only on the current state of the system, not on the path taken to reach that state. Work and heat are path functions, meaning their values depend on the process undergone. Entropy, however, is a state function, representing the degree of randomness or disorder in a system at a given state.

Question 4

Which of the following is an example of water boiling in a container?

Accepted Answer

Neither of them

Answer

Water boiling in an open container is typically considered an open system, as both mass (steam) and energy (heat) can be exchanged with the surroundings. A batch process involves no inflow or outflow of mass during the process, while a semi-batch process involves either inflow or outflow but not both simultaneously. Boiling water in an open container doesn't fit neatly into either definition as it's an open system with continuous mass and energy transfer.

Question 5

What statement regarding limiting reagents is accurate?

Accepted Answer

Consumes completely

Answer

A limiting reagent (or reactant) in a chemical reaction is the reactant that is completely consumed when the reaction goes to completion. Its availability determines the maximum amount of product that can be formed. Once the limiting reagent is used up, the reaction stops, regardless of how much of the other reactants are present.

BE/B Eng Bachelor of Engineering Practice Test

BE/B Eng Bachelor of Engineering Practice Test

Free Bachelor of Chemical Engineering Questions and Answers