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.

Compression ratio of LC. engines is ___________________?

A the ratio of volumes of air in cylinder before compression stroke and after compression stroke

B volume displaced by piston per stroke and clearance volume in cylinder

C ratio of pressure after compression and before compression

D swept volume/cylinder volume

Review Detailed Answer

Correct Answer: the ratio of volumes of air in cylinder before compression stroke and after compression stroke

Supercharging is the process of_____________________?

A supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere

B providing forced cooling air

C injecting excess fuel for raising more load

D supplying compressed air to remove combustion products fully

Review Detailed Answer

Correct Answer: supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere

The patrol is distilled at a temperature from :

A 6° to 20°

B 220° to 345°

C 65° to 220°

D 15° to 120°

Review Detailed Answer

Correct Answer: 65° to 220°

Which of the following is mostly used used as blast furnace fuel for extracting pig iron from iron ores?

A Brown coal

B Anthracite coal

C Hard coke

D Woodchar coal

Review Detailed Answer

Correct Answer: Hard coke

Which of the following solid fuel has high carbon content?

A Coke

B Coal

C Peat

D None of these

Review Detailed Answer

Correct Answer: Coke

Which of the following solid fuel has high caloric value : ___________?

A Wood

B Peat

C Bituminous coal

D Anthracite coal

Review Detailed Answer

Correct Answer: Anthracite coal

The average calorific value of wood is about : __________?

A 33500 kj/kg

B 25000 kj/kg

C 23000 kj/kg

D 19700 kj/kg

Review Detailed Answer

Correct Answer: 19700 kj/kg

The natural solid fuels are : ________?

A Wood

B Peat

C Lignite

D All of above

Review Detailed Answer

Correct Answer: All of above

Diesel Cycle is also known as : __________?

A Constant temperature cycle

B Constant Volume cycle

C Constant Pressure Cycle

D All of above

Review Detailed Answer

Correct Answer: Constant Pressure Cycle

Pick up false statement?

A For petrol and large gas engines, quantity governingds preferred

B In quantity governing, air fuel ratio is almost constant and quantity of charge is changed depending on load

C In hit and miss governing, fuel supply is completely cut off during one or more number of cycles

D In quality governing, quantity of fuel is varied to suit the load and total charge of air is varied

Review Detailed Answer

Correct Answer: In quality governing, quantity of fuel is varied to suit the load and total charge of air is varied

Showing 1121 to 1130 of 1919 results

Contact Info

Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Compression ratio of LC. engines is ___________________?

Supercharging is the process of_____________________?

The patrol is distilled at a temperature from :

Which of the following is mostly used used as blast furnace fuel for extracting pig iron from iron ores?

Which of the following solid fuel has high carbon content?

Which of the following solid fuel has high caloric value : ___________?

The average calorific value of wood is about : __________?

The natural solid fuels are : ________?

Diesel Cycle is also known as : __________?

Pick up false statement?