Fundamentals of Mechanical Engineering ❤️
383 subscribers
29 photos
1 file
12 links
This channel will help you feel the concepts in Mechanical Engineering and will be useful for various competetive exams.
Download Telegram
Slope of Mollier diagram in vapour phase region
Anonymous Poll
34%
Constant
49%
Increases
16%
Decreases
For linear type power source 150 Volt and 200 Volt is given and currents are 200 A and 300 A. Which will represent a point in (V I graph)
Anonymous Quiz
22%
150 V and 200 A
54%
150 V and 300 A
24%
200 V and 300 A
Which casting material will require largest riser?
Anonymous Quiz
16%
Brass
11%
Bronze
59%
Aluminium
14%
Steel
The strain rate at the primary stage of creep
Anonymous Quiz
23%
Decreases
52%
Increases
25%
Remains same
Fundamentals of Mechanical Engineering ❤️
Which casting material will require largest riser?
Make a note of it


Brass - Largest pattern will be of brass due to maximum solid shrinkage.

Aluminium - Largest riser because maximum liquid and solidification shrinkage


Steel- Maximum Total shrinkage.
During spray of molten materials in MIG welding, there is
Anonymous Quiz
36%
Gravity force only
18%
Magnetic force only
46%
Both above
Happy Holi everyone



Just keep learning and enjoy what you learn!
If percentage of water increases then fluidity of molten metal that is need to be casted will
Anonymous Poll
46%
Decrease
16%
Increase
38%
First increase then decrease
Here percentage of water is considered in the mould sand👆
Fundamentals of Mechanical Engineering ❤️
If percentage of water increases then fluidity of molten metal that is need to be casted will
The answer to the above poll is


1 Decreases - As we increase water in mould sand there will be more heat transfer from molten material and inturn it will solidify rapidly and hence fluidity decreases.
At surging in centrifugal compressors mass flow rate is
Anonymous Quiz
47%
Maximum
37%
Minimum
16%
Optimum
Mass flow rate is minimum to occur surging.
Surging is nothing but back flow of gases in a very small time resulting in high vibrations which can damage the blades of the compressor.
The basic principles of Gyroscope involes
Where angular momentum chases
Anonymous Quiz
4%
Weight
44%
Torque
52%
Moment of Inertia
Refer this for more clarity 👆