MCQsDrive | MCQsDrive

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.

A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is_________________?

A 1

B 5

C 7

D 6

Review Detailed Answer

Correct Answer: 6

The center of pressure of a surface subjected to fluid pressure is the point_______________?

A on the surface at which resultant pres-sure acts

B on the surface at which gravitational force acis

C at which all hydraulic forces meet

D similar to metacentre

Review Detailed Answer

Correct Answer: on the surface at which resultant pres-sure acts

Metacentric height is the distance between the metacentre and_______________?

A water surface

B center of pressure

C center of gravity

D center of buoyancy

Review Detailed Answer

Correct Answer: center of gravity

The resultant of all normal pressures acts___________________?

A at e.g. of body

B at center of pressure

C vertically upwards

D at metacentre

Review Detailed Answer

Correct Answer: vertically upwards

In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to________________?

A sin 9

B sin 9

C cas 9

D cos 9

Review Detailed Answer

Correct Answer: sin 9

Manometer is used to measure__________________?

A pressure in pipes, channels etc

B atmospheric pressure

C very low pressure

D difference of pressure between two points

Review Detailed Answer

Correct Answer: pressure in pipes, channels etc

A metal with specific gravity of o floating in a fluid of same specific gravity a will____________________?

A sink to bottom

B float over fluid

C partly immersed

D be fully immersed with top surface at fluid surface

Review Detailed Answer

Correct Answer: be fully immersed with top surface at fluid surface

Dynamic viscosity of most of the liquids with rise in temperature__________________?

A remains unaffected

B decreases

D unpredictable

Review Detailed Answer

Correct Answer: decreases

In an isothermal atmosphere, the pressure___________________?

A decreases linearly with elevation

B remains constant

C varies in the same way as the density

D increases exponentially with elevation

Review Detailed Answer

Correct Answer: varies in the same way as the density

Operation of McLeod gauge used for low pressure measurement is based on the principle of_________________?

A gas law

B Boyle’s law

C Charle’s law

D Pascal’s law

Review Detailed Answer

Correct Answer: Boyle’s law

Showing 911 to 920 of 1919 results

Contact Info

Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is_________________?

The center of pressure of a surface subjected to fluid pressure is the point_______________?

Metacentric height is the distance between the metacentre and_______________?

The resultant of all normal pressures acts___________________?

In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to________________?

Manometer is used to measure__________________?

A metal with specific gravity of o floating in a fluid of same specific gravity a will____________________?

Dynamic viscosity of most of the liquids with rise in temperature__________________?

In an isothermal atmosphere, the pressure___________________?

Operation of McLeod gauge used for low pressure measurement is based on the principle of_________________?