Automobile Engineering Interview Questions and Answers
Question - 31 : - Why are the side members of the frame upswept at two places?
Answer - 31 : -
The frame is upswept at the rear and front to accommodate the movement of the axles due to springing. It also keeps the chassis height low.
Question - 32 : - What is the function of a bumper?
Answer - 32 : -
A bumper is the front-most or rear-most part, which is designed to allow the vehicle to sustain an impact without damage to the vehicle’s safety systems
Question - 33 : - What are the stresses to which the frame members are subjected to?
Answer - 33 : -
- Frame longitudinal members – bending stress
- Frame side members – twisting stress
Question - 34 : - What is meant by self-propelled vehicle?
Answer - 34 : -
A self propelled vehicle is known as an “Automobile”
Question - 35 : - What is meant by the term Chassis?
Answer - 35 : -
A complete vehicle without a body structure is known as Chassis. It comprises of basic structure, power unit, transmission system, controls and auxiliaries.
Question - 36 : - What are the functions of piston rings?
Answer - 36 : -
To provide a gas tight seal between the piston and cylinder liner to prevent the escape of gases from top side of the piston to the underside.
Question - 37 : - What is clearance volume? And what are its effects?
Answer - 37 : -
The volume above the piston, when it reaches TDC is known as clearance volume. The clearance volume is inversely proportional to the compression ratio.
Question - 38 : - What is the function of piston, connecting rod, crank shaft and cylinder head?
Answer - 38 : -
- Piston – The piston assembly transfers the force from the power stroke to the crankshaft
- Connecting rod – converts reciprocating motion of piston into rotary motion of crankshaft
- Cylinder head – it acts as a top cover to the cylinder block. The valves are placed in the cylinder head in an overhead valve engine.
Question - 39 : - What is the purpose of cooling system?
Answer - 39 : -
The purpose of cooling system is to cool the engine components in order to keep their temperature below certain limit and thereby avoiding excessive thermal stress in those components.
Question - 40 : - What is meant by turbo charging?
Answer - 40 : -
Increasing the density of inducted charge/air by using a compressor which gets its power from exhaust driven turbine is known as Turbo charging.