Fundamentals of Mechanical Engineering ❤️
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This channel will help you feel the concepts in Mechanical Engineering and will be useful for various competetive exams.
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A transmission shaft subjected to bending loads must be designed on the basis of
Anonymous Poll
12%
1 Rankine Theory
29%
2 Tresca Theory
8%
3 Haigh's Theory
51%
4 Fatigue Strength
Fundamentals of Mechanical Engineering ❤️
Effect of friction at sleeve will make the governor
The answer to this poll is




2 Insensitive- Friction always acts opposite to the motion of sleeve and sensitivity will be more if there is more displacement of sleeve for a given change of speed. Hence friction opposes the motion so we can say that it makes it more insensitive.
Fundamentals of Mechanical Engineering ❤️
A transmission shaft subjected to bending loads must be designed on the basis of
The answer to this poll is



4 Fatigue Strenth- Transmission shafts are subjected to reverse bending, suppose if one only considers Torque transmission and desin it by Tresca then the designing stress/allowable stress can fail the material because in fatigue failure occurs below yield point, hence we design by Fatigue strength.
By increasing cutting velocity of the tool in orthogonal machining Cutting Force
Anonymous Poll
29%
1 Increases
31%
2 Decreases
40%
3 No effect
During punching without the use of flywheel the speed of the motor
Anonymous Poll
38%
1 Remains same
49%
2 Decreases
13%
3 Increases
Fundamentals of Mechanical Engineering ❤️
During punching without the use of flywheel the speed of the motor
The answer to this poll is


2 Decreases- Because the punch experiences resisting shera force which decreases its spedd that is why we use flywheel.
Stream functiom is definable if a valid velocity potential function exists.
Anonymous Poll
69%
1 True
31%
2 False
Fundamentals of Mechanical Engineering ❤️
LMTD has
The answer to this poll is



3- LMTD is Logarithmic Mean Temperature difference. So it is difference in temperature so its value will be same in degree celcius and Kelvin.
Can "Make Span Time" be interpretated as "Job Flow Time" of last job.
Anonymous Poll
55%
1 True
45%
2 False
Below curie temperature magnetic properties starts disappearing then there is
Anonymous Poll
39%
1 Change in Phase
61%
2 No change in Phase
Fundamentals of Mechanical Engineering ❤️
Can "Make Span Time" be interpretated as "Job Flow Time" of last job.
The answer to this poll is


1 True-Job flow time of last job will only take place if all the previous jobs are machined so which will be equal to Make span time.
Fundamentals of Mechanical Engineering ❤️
Below curie temperature magnetic properties starts disappearing then there is
The answee to this poll is



2 No change in Phase-Below curie temperature there is change in phase diagram because there is change in magnetic properties but actually there is no change in phase of Iron.
Which has more slip systems?
Anonymous Poll
60%
1 BCC
40%
2 FCC
Which is more ductile?
Anonymous Poll
44%
1 BCC
56%
2 FCC
Ignore the tickmarks in the options
Correct answer will be posted tomorrow.
Fundamentals of Mechanical Engineering ❤️
Which has more slip systems?
The answer to this poll is



1 BCC-BCC has 48 slip systems
while FCC has 12 slip systems.