Multiple Choice Questions (MCQ) on Supercharging & Turbo charging

Multiple Choice Questions (MCQ) on Supercharging & Turbo charging

 

The purpose of Supercharging is to

1. Increase compression ratio
2. Utilize exhaust gas energy
3. Increase charge density
4. Increase speed of engine

(Ans:c)

 

The performance of an engine can be improved by

1. Increasing speed of the engine
2. Use of higher compression ratio
3. Increasing charge density

Which of the above are true?

1. Only i
2. i & ii
3. i & iii
4. All of these

(Ans:d)

 

Which of the following is not an objective of supercharging?

1. To reduce the weight to power ratio.
2. To overcome power loss at higher altitudes
3. To increase the power output
4. To increase compression ratio

(Ans:d)

 

Superchargers are

1. Compressors
2. Driven by engine shaft
3. Used for increasing the pressure of air above atmospheric pressure

Which of the above are true?

1. Only i
2. i & ii
3. i & iii
4. All of these

(Ans:d)

 

Which of the following compressors is similar to principle and design to a reciprocating engine?

1. Piston cylinder type
2. Root blower
3. Vane type blower
4. Centrifugal compressor

(Ans:a)

 

Which of the following types of superchargers are not preferred

1. Piston cylinder type
2. Root blower
3. Vane type blower
4. Centrifugal compressor

(Ans:a)

 

In which of the following compressors, a slip coupling is used between the engine and compressor for the variable speed operations of the engines?

1. Piston cylinder type
2. Root blower
3. Vane type blower
4. Centrifugal compressor

(Ans:d)