Mechanical Engineering - Steam Boilers and Engines

1.
In order to compare the capacity of boilers, the feed water temperature and working pressure are taken as
50° C and normal atmospheric pressure
50° C and 1.1 bar pressure
100° C and normal atmospheric pressure
100° C and 1.1 bar pressure
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
A condenser maintains a low pressure (below atmospheric) so as to obtain the maximum possible energy from steam and thus to secure a high efficiency.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
The amount of water evaporated from and at 100° C into dry and saturated steam is called evaporative capacity of a boiler.
Yes
No
Answer: Option
Explanation:
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4.
The difference between the atmospheric pressure and the absolute pressure is known as vacuum in a condenser.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is
0.007 bar
0.053 bar
0.06 bar
0.067 bar
Answer: Option
Explanation:
No answer description is available. Let's discuss.