Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

An open system is one in which____________________?

A mass does not cross boundaries of the system, though energy may do so

B neither mass nor energy crosses the boundaries of the system

C both energy and mass cross the boundaries of the system

D mass crosses the boundary but not the energy

Review Detailed Answer

Correct Answer: both energy and mass cross the boundaries of the system

Gases have___________________?

A only one value of specific heat

B two values of specific heat

C three values of specific heat

D no value of specific heat

Review Detailed Answer

Correct Answer: two values of specific heat

Extensive property of a system is one whose value______________________?

A depends on the mass of the system like volume

B does not depend on the mass of the system, like temperature, pressure, etc.

C is not dependent on the path followed but on the state

D is dependent on the path followed and not on the state

Review Detailed Answer

Correct Answer: depends on the mass of the system like volume

The statement that molecular weights of all gases occupy the same volume is known as________________?

A Avogadro’s hypothesis

B Dalton’s law

C Gas law

D Law of thermodynamics

Review Detailed Answer

Correct Answer: Avogadro’s hypothesis

If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to__________________?

A + v

B – ve

C zero

D pressure x volume

Review Detailed Answer

Correct Answer: zero

Properties of substances like pressure, temperature and density, in thermodynamic coordinates are__________________?

A path functions

B point functions

C cyclic functions

D real functions

Review Detailed Answer

Correct Answer: point functions

Which of the following is not the intensive property___________________?

A pressure

B temperature

C density

D heat

Review Detailed Answer

Correct Answer: heat

Work done in an adiabatic process between a given pair of end states depends on__________________?

A the end states only

B particular adiabatic process

C the value of index n

D the value of heattransferred

Review Detailed Answer

Correct Answer: the end states only

Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure___________________?

A enthalpy

B volume

C mass

D entropy

Review Detailed Answer

Correct Answer: volume

Solids and liquids have___________________?

A one value of specific heat (ft) two values of specific heat

C three values of specific heat

D no value of specific heat

Review Detailed Answer

Correct Answer: one value of specific heat (ft) two values of specific heat

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

An open system is one in which____________________?

Gases have___________________?

Extensive property of a system is one whose value______________________?

The statement that molecular weights of all gases occupy the same volume is known as________________?

If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to__________________?

Properties of substances like pressure, temperature and density, in thermodynamic coordinates are__________________?

Which of the following is not the intensive property___________________?

Work done in an adiabatic process between a given pair of end states depends on__________________?

Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure___________________?

Solids and liquids have___________________?