Mechanical Engineering - Steam Boilers and Engines

1. 

A compound steam engine in which the high pressure and low pressure cylinders have common piston rod, is called

A. receiver type compound engine
B. Tandem type compound engine
C. Woolf type compound engine
D. none of these

Answer: Option B

Explanation:

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2. 

An economiser is used to increase the temperature of saturated steam without raising its pressure.

A. Correct
B. Incorrect

Answer: Option B

Explanation:

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3. 

Besides mean effective pressure, the data required to determine the indicated power of an engine include

A. piston diameter, length of stroke and calorific value of fuel
B. piston diameter, specific fuel consumption and Calorific value of fuel
C. piston diameter, length of stroke and speed of rotation
D. specific fuel consumption, speed of rotation and torque

Answer: Option C

Explanation:

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4. 

The function of a governor is to keep the engine speed uniform at all load conditions.

A. Correct
B. Incorrect

Answer: Option A

Explanation:

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5. 

The efficiency of the plant __________ with the mechanical draught.

A. increases
B. decreases
C. remains constant

Answer: Option A

Explanation:

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