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 self locking screw has________________>

A fine threads

B coarse threads

C coefficient of friction > tangent of load angle

D hole for inserting split pin

Review Detailed Answer

Correct Answer: coefficient of friction > tangent of load angle

Which is correct statement ?

A a member made of steel will generally be more rigid than a member of equal load-carrying ability made of cast iron

B a member made of cast iron will generally be. more rigid than a member of equal load carrying ability made of steel

C both will be equally rigid

D which one is rigid will depend on several other factors

Review Detailed Answer

Correct Answer: a member made of cast iron will generally be. more rigid than a member of equal load carrying ability made of steel

A bolt___________________?

A has a head on one end and a nut fitted to the other

B has head at one end and other end fits into a tapped hole in the other part to be joined

C has both the ends threaded

D is provided with pointed threads

Review Detailed Answer

Correct Answer: has a head on one end and a nut fitted to the other

If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be_________________?

A lOVZ

B 10VZtol5Vd

C 15Vdto20VZ

D 20Vdto30Vd

Review Detailed Answer

Correct Answer: 20Vdto30Vd

Shear stress theory is applicable for____________________?

A ductile fnaterials

B brittle materials

C elastic materials

D all of the above

Review Detailed Answer

Correct Answer: ductile fnaterials

For applications involving high stresses in one direction only the following type of thread would be best suited______________________?

A ISO metric thread

B acme thread

C square thread

D buttress thread

Review Detailed Answer

Correct Answer: buttress thread

The function of a washer is to___________________?

A provide cushioning effect

B provide bearing area

C absorb shocks and vibrations

D provide smooth surface in place of rough surface

Review Detailed Answer

Correct Answer: provide bearing area

Ball bearing type screws are found in following application_____________________?

A screw jack

B aeroplane engines

C crane

D steering mechanism

Review Detailed Answer

Correct Answer: steering mechanism

An alien bolt is___________________?

A self locking bolt

B same as stud

C provided with hexagonal depression in head

D used in high speed components

Review Detailed Answer

Correct Answer: provided with hexagonal depression in head

Set screws are_________________?

A similar to small size tap bolts except that a greater variety of shapes of heads are available

B slotted for a screw driver and generally used with a nut

C used to prevent relative motion be-tween parts

D similar to stud

Review Detailed Answer

Correct Answer: used to prevent relative motion be-tween parts

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

A self locking screw has________________>

Which is correct statement ?

A bolt___________________?

If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be_________________?

Shear stress theory is applicable for____________________?

For applications involving high stresses in one direction only the following type of thread would be best suited______________________?

The function of a washer is to___________________?

Ball bearing type screws are found in following application_____________________?

An alien bolt is___________________?

Set screws are_________________?