Mechanical Engineering Online Quiz

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Email *

Name *

Name of the Programme you are studying *

Name of Your College *

Graduation Year (20XX - 20XX) *

Mobile Number *

1) The diesel engines are also known as __________ engines. *

1 point

Compression Ignition

Spark Ignition

Saab Direct Ignition

Electromagnetism

2) Which of the following is a scalar quantity? *

1 point

Force

Velocity

Speed

Acceleration

3) A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as _______________ *

1 point

Carnot cycle

Stirling cycle

Otto cycle

Diesel cycle

4) An adiabatic process is one in which ______________________ *

1 point

no heat enters or leaves the gas

the temperature of the gas changes

the change in internal energy is equal to the mechanical workdone

All the above

5) The ratio of total useful heat drop to the total isentropic heat drop, is called _____________ *

1 point

Stage efficiency

Internal efficiency

Rankine efficiency

None of these

6) The maximum temperature in a gas turbine is _____________ *

1 point

200°C

500°C

700°C

1000°C

7) The toughness of a material __________ when it is heated. *

1 point

increases

decreases

does not change

remains same

8) Which of the following material has maximum ductility? *

1 point

Mild steel

Copper

Nickel

Aluminium

9) Reheating in a gas turbine *

1 point

increases the thermal efficiency

increases the compressor work

increases the turbine work

decreases the thermal efficiency

10) Cast iron is a _____________ *

1 point

Ductile material

Malleable material

Brittle material

Tough material

11) In a Kaplan turbine runner, the number of blades are generally between ____________ *

1 point

2 to 4

4 to 8

8 to 16

16 to 24

12) In a refrigerating machine, heat rejected is __________ heat absorbed. *

1 point

equal to

less than

greater than

remains same as

13) Which of the following is the lightest and most volatile liquid fuel? *

1 point

Kerosene

Gasoline

Fuel oil

None of the above

14) The point, through which the whole weight of the body acts, irrespective of its position, is known as _____________ *

1 point

moment of inertia

centre of gravity

centre of percussion

centre of mass

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