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MECH&AE 105A · Dis 1A

Introduction to Engineering Thermodynamics

Fall 2026Park, D.B.4 units

Seats, time, final and grades

Seats

Open, 9 seats left.

56 of 65 enrolled.

Meets

F 8:00am-9:50am

This discussion only. You also attend Lec 1.

Final

Thu 10 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

3.16
predicted, all instructors · 1,345 grades

1,345 letter grades, everyone who has taught MECH&AE 105A.

Read 36 minutes ago. This is a recent reading, not a live seat count.

dibs has seen this section open 6 times since 18 August. The last time was 17 September. 4 of those were readings where the capacity figure moved and the enrolled count did not, so dibs could not tell whether a seat existed and did not send an alert.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 3 days ago: "Undergraduate School of Engineering Majors, and Undergraduate School of Engineering Majors or Environmental Engineering Minors".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions read 3 days ago. dibs re-reads these slowly because they rarely change; watch the section and it moves to every 6 hours.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: F 8:00am-9:50am

Lecture: MW 4:00pm-5:50pm

Dodd Hall 146

Grades

3.16
predicted, all instructors · 1,345 grades

Of the 3 people in the grade record for MECH&AE 105A, the 2 with the most grades: AMAR, RAVNESH C at 3.23 over 1,195 grades and PILON, LAURENT G at 2.54 over 125 grades.

A range
38%
P/NP
0%
D/F/W
3.3%

Full grade history for MECH&AE 105A

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

What the work looks like

  • 1 exam, said by 11 reviewers
  • 4 quizzes, said by 4 reviewers
  • No problem sets, said by 10 reviewers

Read from 82 reviews 17 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

Reviews for MECH&AE 105A Search the reviews for D.B. Park

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 10621F
  • 14822W
  • 11222S
  • 8422F
  • 13723W
  • 8223F
  • 13024W
  • 10124S
  • 11324F
  • 14425W
  • 12925S
Enrollment by term: 21F 106, 22W 148, 22S 112, 22F 84, 23W 137, 23F 82, 24W 130, 24S 101, 24F 113, 25W 144, 25S 129

Peak 148 · most recent 25S at 129

Seats over time

Filled by 7 over about 1 month

6 times reopened
56 of 65 · 9 left
18 Aug 19:409 Sep 23:212 Oct 03:02
dibs read 132 of the 914 hours its hourly record covers, 14%, and did not look in 782. dibs had no hourly record before 25 Aug, which is the other 151 of 1065 plotted.56 of 65 enrolled at the newest reading, 36 minutes ago, with 9 left. Seats from 18 Aug 19:40 to 2 Oct 03:02, 49 to 56. dibs read 132 of the 914 hours its hourly record here covers, 14%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 782 hours dibs was keeping a record and did not reach this section. Nothing before 25 August at 02:00, where this section's record starts, has a read either way, which is 151 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 36 minutes ago.

Show the readings (37)
Recorded Enrolled Capacity Status Waitlist Hours read
2 Oct 03:02 56 65 open - 5 of 31
30 Sep 21:42 56 65 open - 2 of 8
30 Sep 14:42 55 65 open - 2 of 4
30 Sep 11:12 56 65 open - 5 of 21
29 Sep 15:52 55 65 open - 4 of 18
28 Sep 22:32 56 65 open - 3 of 8
28 Sep 15:32 57 65 open - 4 of 22
27 Sep 18:12 58 65 open - 2 of 5
27 Sep 14:42 57 65 open - 5 of 26
26 Sep 13:32 56 65 open - 3 of 11
26 Sep 03:42 55 65 open - 3 of 11
25 Sep 17:02 56 65 open - 2 of 8
25 Sep 10:02 57 65 open - 2 of 5
25 Sep 06:32 58 65 open - 2 of 9
24 Sep 22:52 57 65 open - 2 of 8
24 Sep 15:52 58 65 open - 5 of 23
23 Sep 17:52 57 65 open - 3 of 13
23 Sep 05:02 59 65 open - 5 of 30
22 Sep 00:22 60 65 open - 2 of 8
21 Sep 17:22 59 65 open - 9 of 51
19 Sep 15:32 60 65 open - 8 of 47
17 Sep 17:02 62 65 open - 2 of 8
17 Sep 10:02 60 65 open - 10 of 61
14 Sep 22:02 60 60 closed - 3 of 12
14 Sep 11:32 59 60 open - 2 of 4
14 Sep 08:02 57 60 open - 10 of 68
11 Sep 13:40 57 57 closed - 29 of 254
1 Sep 00:40 56 56 closed - 2 of 5
31 Aug 20:40 56 57 open - 2 of 8
31 Aug 13:40 53 56 open - 12 of 85
28 Aug 01:40 53 53 closed - 2 of 4
27 Aug 22:40 49 53 open - 2 of 2
27 Aug 21:40 53 53 closed - 2 of 2
27 Aug 20:40 49 53 open - 2 of 2
27 Aug 19:40 53 53 closed - 3 of 11
27 Aug 09:40 49 53 open - 6 of 207, 151 no hourly record
18 Aug 19:40 49 49 closed - -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

Nobody on dibs watches this class or has it on a plan yet. Nobody has posted yet.

Dis 1A shares one room with Lec 1 and every other discussion under it, because that is what a student means by "my class".

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