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Production Engineering Interview Questions and Answers

Production Engineering Interview Questions and Answers

Question - 41 : - What Is Torque?

Answer - 41 : -

Torque is the force that causes rotation. It is a measure of how much force is acting on an object making it rotate.

Question - 42 : - Explain Why Diesel Engine Is Known As High Torque And Petrol Engine As High Speed Engine?

Answer - 42 : -

Each power stroke in a petrol engine releases more heat and is converted into mechanical energy due to a higher rate of burning. This is the reason petrol engine has higher power and acceleration.

Diesel engine is a compression ignition engine with higher compression ratio, therefore extreme pressure is high. Since the piston of a diesel engine is larger, more torque is delivered in produced.

Question - 43 : - Why Do Heavy Vehicles Use Diesel Engine?

Answer - 43 : -

The compression ratio of diesel engine is higher than the petrol engine, the reason for producing higher torque. The efficiency of diesel engine increases with load. Diesel produces slow energy on burning of fuel and the efficiency of the engine increases with load which is why diesel engine is suitable and largely used for heavy vehicles.

Question - 44 : - Explain The Types Of Sensors?

Answer - 44 : -

  • Temperature Sensor:- This device collects information about the temperature from a source and converts it to a form which is understandable by another device or person. Glass thermometer is the best example where mercury acts as the temperature sensor.
  • IR Sensors:- This device detects and/or emits infrared radiation to sense a particular phase in the environment. Mostly thermal radiation is emitted by all the objects in the infrared spectrum. This type of radiation is not visible to the human eye but the infrared sensor detects it.
  • UV Sensors:- These sensors measure the intensity of the ultraviolet radiation. This form of electromagnetic radiation has wavelengths which are longer than x-rays yet shorter than visible radiation. UV sensors can discover the exposure of environment to ultraviolet radiation.
  • Touch Sensor:- A touch sensor acts as a variable resistor based on the location where it is sensed.
  • Proximity Sensor:- A proximity sensor detects the presence of objects that are placed in close proximity without any point of contact.

Question - 45 : - Why Gas Containers Are Mostly In A Cylindrical Shape?

Answer - 45 : -

The ideal shape would be a sphere. The container must have the capacity to withstand the extremely high pressure of liquefied gas. A spherical shape helps in distributing these forces uniformly.

Question - 46 : - How Many Types Of Suspensions Are Used In Automobiles?

Answer - 46 : -

  • McPherson struts
  • Leaf spring
  • Coil spring
  • Torsion beam
  • Wishbone
  • Air Suspension

Question - 47 : - What Is Dtsi? Why It Is Used In Motor Bikes?

Answer - 47 : -

Digital Twin Spark Ignition. This is used for a better fuel combustion in the cylinder head which helps provide better efficiency and optimum use of fuel.

Question - 48 : - What Is Meant By Gear Ratio?

Answer - 48 : -

A gear ratio is a direct measure of ratio of the rotational speeds of two or more interlocking gears.

NCERT Solutions


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