Mechanical Engineering - Steam Boilers and Engines - Discussion

Discussion Forum : Steam Boilers and Engines - Section 1 (Q.No. 10)
10.
When the speed of the crankshaft is between 100 r.p.m. and 250 r.p.m., the engine said to be a
slow speed engine
medium speed steam engine
high speed steam engine
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
9 comments Page 1 of 1.

Vaibhav Jain said:   3 years ago
Correct answer is B.
Because slow speed r. p.m. = 80 to 120,
Medium speed r.p.m. = 250 to 800,
High speed r.p.m. = above 900.
(2)

Aadari Pradeep said:   7 years ago
Yes, option B is correct because the medium speed engine starts from 100-250rpm.

Saimun Zoha said:   8 years ago
According to me, A and B both are correct.

Narsingh said:   8 years ago
Yes, you both are correct @Mayur and @Venkatesh.

Option A&B correct.

Venkatesh said:   8 years ago
Here, the answer is both A, B.

Mayur said:   9 years ago
@Anuruddh.

In question, it doesn't say anything about steam engine so either slow speed should be correct or either both option A & B should be correct.

Anuruddh said:   9 years ago
Mr, @Harsh. Here talking about the steam engine.

So, @Babu's answer is correct.

Babu..:) said:   1 decade ago
Answer given is right.

Slow speed - less than 100.

Medium speed - 100 to 250.

High speed - above 250.
(1)

Harsh said:   1 decade ago
SLOW SPEED ENGINES - Engines which have rpm less than 300 r.p.m
MEDIUM SPEED ENGINES - Engines which have rpm ranging from 300-1000 r.p.m.
HIGH SPEED ENGINES - Engines which have rpm more than 1000 r.p.m.

Answer given is wrong.
(1)

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