Mechanical Engineering MCQ Questions and Answers

Mechanical Engineering MCQ 1

The train value of a gear train is _____.

1. Equal to speed ratio of a gear train

2. Reciprocal of the speed ratio of a gear train

3. Always greater than unity

4. Always less than unity

Answer: b. Reciprocal of speed ratio of a gear train.

The train value of a gear train is reciprocal to the speed ratio of a gear train.

Solution:

For a detailed solution, check the train value of a gear train is reciprocal.

Mechanical Engineering MCQ 2

The painting of automobiles is done to ______.

1. Prevent rust from growing on the body.

2. Improve its external appearance.

3. Retain the characteristics of steel for a long.

4. All of these

Answer: d. All of these

Solution:

For a detailed solution, check the painting of automobiles is done to...

Mechanical Engineering MCQ 3

Maximum principal stress theory is used for______.

1. Ductile materials

2. Brittle materials

3. Elastic materials

4. All of the above

Answer: b. Brittle materials

Maximum principal stress theory is used for brittle materials.

Solution:

For a detailed solution, check the Maximum principal stress theory is used for brittle materials.

Mechanical Engineering MCQ 4

A single-point thread-cutting tool should ideally have______.

1. Positive rake

2. Negative rake

3. Normal rake

4. Zero rake

Answer: d. Zero rake

A single-point thread cutting tool should ideally have zero rake angle.

Solution: 

For a detailed solution, check a single-point thread cutting tool should ideally have zero rake angle.

Mechanical Engineering MCQ 5

A column that fails due to direct stress is called ________.

1. Short column

2. Long column

3. Weak column

4. Medium column

Answer: a. Short column

A column that fails due to direct stress is called the short column.

Solution: 

For a detailed solution, check a column that fails due to direct stress is called ________.

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