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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.

In the lever of third order, load W, effort P and fulcrum F are oriented as follows_________________?

A W between P and F

B F between W and P

C P between W and F

D W, P and F all on one side

Review Detailed Answer

Correct Answer: P between W and F

The stress developed in a material at breaking point in extension is called__________?

A Breaking stress

B Fracture stress

C Yield point stress

D Proof stress

Review Detailed Answer

Correct Answer: Breaking stress

Hooke’s law holds good up to____________________?

A yield point

B limit of proportionality

C breaking point

D elastic limit

Review Detailed Answer

Correct Answer: limit of proportionality

The unit of Young’s modulus is__________________?

A mm/mm

B kg/cm

C kg

D kg/cm2

Review Detailed Answer

Correct Answer: kg/cm

It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called______________________?

A internal resistanpe

B tensile stress

C transverse stress

D compressive stress

Review Detailed Answer

Correct Answer: tensile stress

Modulus of rigidity is defined as the ratio of_________________?

A longitudinal stress and longitudinal strain

B volumetric stress and volumetric strain

C lateral stress and lateral strain

D shear stress and shear strain

Review Detailed Answer

Correct Answer: shear stress and shear strain

The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?

A same

B more

C less

D more or less depending on other factors

Review Detailed Answer

Correct Answer: more

A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?

A uniform throughout

B increase uniformly

C first increase and then decrease

D increase uniformly first and then increase rapidly

Review Detailed Answer

Correct Answer: increase uniformly

Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?

A area at the time of fracture

B original cross-sectional area

C average of A. and B.

D minimum area after fracture

Review Detailed Answer

Correct Answer: original cross-sectional area

The Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length________________?

A half

B same amount

C double

D one-fourth

Review Detailed Answer

Correct Answer: same amount

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

In the lever of third order, load W, effort P and fulcrum F are oriented as follows_________________?

The stress developed in a material at breaking point in extension is called__________?

Hooke’s law holds good up to____________________?

The unit of Young’s modulus is__________________?

It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called______________________?

Modulus of rigidity is defined as the ratio of_________________?

The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?

A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?

Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?

The Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length________________?