M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

Cv for an ideal gas__________________?

A Does not depend upon temperature
B Is independent of pressure only
C Is independent of volume only
D Is independent of both pressure and volume
Correct Answer: Is independent of both pressure and volume

Throttling process is a/an _____________ process?

A Reversible and isothermal
B Irreversible and constant enthalpy
C Reversible and constant entropy
D Reversible and constant enthalpy
Correct Answer: Irreversible and constant enthalpy

(∂T/∂P)H is the mathematical expression for__________________?

A Specific heat at constant pressure (Cp)
B Specific heat at constant volume (Cv)
C Joule-Thompson co-efficient
D None of these
Correct Answer: Joule-Thompson co-efficient

In jet refrigerators, the refrigerating fluid is practically always_________________?

A Water
B Ammonia
C Freon
D Brine
Correct Answer: Water

Gibbs phase rule finds application, when heat transfer occurs by___________________?

A Conduction
B Convection
C Radiation
D Condensation
Correct Answer: Condensation

Which of the following will increase the volume of a real gas by four times ?

A Doubling the absolute temperature as well as pressure of the gas
B Reducing pressure to one fourth at constant temperature
C Reducing temperature to one fourth at constant pressure
D Reducing the temperature to half and doubling the pressure
Correct Answer: Reducing pressure to one fourth at constant temperature

Compressibility factor for almost all the gases are approximately same at the same__________________?

A Pressure and temperature
B Reduced pressure and reduced temperature
C Critical pressure and critical temperature
D None of these
Correct Answer: Reduced pressure and reduced temperature

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?

A Δ H = 0 and ΔS = 0
B Δ H ≠ 0 and ΔS = 0
C Δ H ≠ 0 and ΔS ≠ 0
D Δ H = 0 and ΔS ≠ 0
Correct Answer: Δ H ≠ 0 and ΔS = 0

Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a _____________ vapour?

A Superheated
B Desuperheated
C Non-condensable
D None of these
Correct Answer: Superheated

1st law of thermodynamics is nothing but the law of conservation of___________________?

A Momentum
B Mass
C Energy
D None of these
Correct Answer: Energy