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Mechanical Engineering Mcqs

Free 2113+ Mechanical Engineering Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Practise below with answers and explanations.

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2113 questions in this list. Select an option to practice, or open a question for the full page with explanation.

Mechanical Engineering Mcqs — MCQs for Pakistan government job tests

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Mechanical Engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. Multiple choice questions here are on topics such as Machine Design, Theory of Machines, Hydraulic Machines etc.

Correct options are highlighted when revealed.

1.At what temperature range is petrol typically distilled?

2.Which type of fuel is commonly utilized in diesel engines and oil-fired boilers?

3.What is another name for hydraulic turbines?

4.What is the primary fuel utilized in blast furnaces to extract pig iron from iron ore?

5.Which solid fuel is characterized by a high percentage of carbon?

6.Which type of solid fuel possesses the highest calorific value?

7.What is the typical average calorific value of wood expressed in kJ/kg?

8.Which of the following are considered natural solid fuels?

9.For an identical compression ratio, how does the efficiency of an ideal diesel cycle compare to that of an Otto cycle?

10.What is another name for the Diesel cycle?

11.What is the weight in pounds-force (lbf) of one gallon of air at standard atmospheric pressure (1 atm) and a temperature of 25°C? Assume the molar mass of air is 28.97 g/mol (0.02897 kg/mol).

12.Which of the following values correctly represent atmospheric pressure?

13.Which valve is primarily utilized in piping systems to control or adjust the flow rate?

14.What is the primary function of ball valves in fluid systems?

15.Which instrument is utilized to determine the width of a gap during preliminary alignment?

16.Which component of a coupling is responsible for transferring torque and rotational motion between two shafts?

17.What is the term for the stress a material experiences at the moment it breaks under tension?

18.Which of the following statements about the impact of sulfur in fuel is incorrect?

19.Which of the following statements about moisture content in coal is incorrect?

20.Which of the following statements about the role of a furnace is incorrect?

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