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KPCL AE Mechanical 2018
39

KPCL AE Mechanical Question Paper - 2018 with Answer Key

39) When the Mach number is less than unity, the flow is called

Sub-sonic flow

Sonic flow

Super-sonic flow

Hyper-sonic flow

Answer is:

Sub-sonic flow

KPCL AE Mechanical Question Paper - 2018 with Answer Key

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43) The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

Parallel to each other

Perpendicular to each other

Inclined at 45 ?

Opposite to each other

Answer is:

Perpendicular to each other

44) For the same maximum pressure and temperature

Otto cycle is more efficient than Diesel cycle

Diesel cycle is more efficient than Otto cycle

Dual cycle is more efficient than Otto and Diesel cycles

Dual cycle is less efficient than Otto and diesel cycles

Answer is:

Diesel cycle is more efficient than Otto cycle

Explanation:

For the same maximum pressure and temperature Diesel cycle is more efficient than Otto cycle.

45) The operation of forcing additional air under pressure into the engine cylinder is known as

Supercharging

Carburation

Turbulence

Delay period

Answer is:

Supercharging

46) Isotropic materials are those which have the same

Elastic properties in all directions

Stresses induced in all directions

Thermal properties in all directions

Electric and magnetic properties in all directions

Answer is:

Elastic properties in all directions

KPCL AE Mechanical Question Paper - 2018 with Answer Key

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39) When the Mach number is less than unity, the flow is called

Sub-sonic flow

KPCL AE Mechanical Question Paper - 2018 with Answer Key

Related KPCL AE Mechanical Question Paper - 2018 with Answer Key

43) The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

Perpendicular to each other

44) For the same maximum pressure and temperature

Diesel cycle is more efficient than Otto cycle

45) The operation of forcing additional air under pressure into the engine cylinder is known as

Supercharging

46) Isotropic materials are those which have the same

Elastic properties in all directions

KPCL AE Mechanical Question Paper - 2018 with Answer Key