Lucien's quick Tuesday quiz

[Avo Mk8]

My dubious attempt 1:c 2:a 3:c 4:d 5:d 6:b 7:c 8:b 9:d 10:b

 

[littlespark]

If in doubt with any multi choice…. The answers always C

So…

1:C
2:C
3:C
4:C
5:C
6:C
7:C
8:C
9:C
10:C

 

[happysteve]

1c, 2b, 3c, 4c, 5d, 6a, 7c, 8d, 9c, 10b.

Saw this today and instantly thought of @Lucien Nunes

Not in working order, but a video of it working was scary enough!

 

[freddo]

Hoping that old cables were measured in fractions of an inch and pretty sure I remember a discussion about wooden casing.

I thought those wire measurements posted were Standard Wire Gauge sizes.

 

[nicebutdim]

I thought those wire measurements posted were Standard Wire Gauge sizes.

That would make sense. I know little of old wire sizes and took a punt on fractions. With the benefit of hindsight I can see they would be rather large cables

 

[happysteve]

The only old cable size I know is 7/029, roughly equivalent to (slightly bigger csa?) 2.5mm^2

 

[islander]

I'll have a crack at it

1: d 2: a 3: b 4: a 5: c 6: b 7: c 8: b 9: c 10: b

 

[Vortigern]

Bit doubtful about Q.3 in that C looks like the answer but it is spelt wrong?

 

[Lucien Nunes]

nicebutdim 5/10
plugsandsparks 7/10
Avo 9/10
littlespark 4/10 (ingenious strategy, much better than random chance)
happysteve 5/10
islander 4/10

So Avo is in the lead. Not plumbum (ledd) but in front (leed).

Pointers
1. Not really a filament but does the same job.
2. Strands / gauge.
3. Most got this, every electrician must have heard the set phrase, 'Casing and ...' It's spelled correctly.
4. It had to be something practically testable on the spot.
5. Measure of output, not input.
6. Again lots of correct hits. Nichrome resistance wire wasn't invented until 1906.
7. Slightly droopy, don't want residual magnetism reversed by reverse current
8. Capless lamps aren't a new invention
9. Scott
10. This will teach me to put Easter eggs in quizzes. Multiple people gave wrong answers.

 

[Aaron b]

Every three weeks I get to hang around the Royal Free Hospital between blood tests, physical exam, scans etc that take a few hours of separate appointments. Not all locations in the building have enough signal to get an internet connection so I tend to work offline writing letters etc. This morning I'm short of offline jobs and only have the MacBook Air which doesn't have all my stuff on it, so here's a 2-minute quiz about electrics at the turn of the century. I might make this a regular slot.

1. A Nernst lamp contains a:
a) Blower
b) Flower
c) Glower
d) Thrower

2. Which is the largest cable:
a) 19/12
b) 37/16
c) 19/20
d) 7/22

3. Wooden casing is fitted with:
a) Basing
b) Facing
c) Capping
d) Strapping

4. IEE Rule 48: Fuses may be considered too large if they are not warm on full load, and too small if they:
a) Blow within 3 weeks of normal use
b) Buzz audibly
c) Sag or discolour on application of 10% overload
d) Hiss when moistened

5. Two common sizes of semi-enclosed arc lamp are rated at 1000 and 2000:
a) VA
b) mA
c) hours
d) c.p.

6. A radiant heater of the Dowsing type is fitted with:
a) Spaghetti coils
b) Sausage lamps
c) Biscuit bars
d) Mushroom diffusers

7. Dynamos used for charging accumulators should be:
a) Non-inductive
b) At least 4-pole
c) Shunt-wound
d) Compensated

8 A ‘B.L.’ incandescent lamp has:
a) Bayonet Lugs
b) Ballasted Leads
c) Bottom Loops
d) British Lamp-makers’ (cartel) conformity


9. A 2-phase AC circuit might incorporate a:
a) BESA
b) Caesar
c) MESA
d) Teaser

10. IEE Rule 38: Joints between flexible conductors and permanent wires under flooring or in wood-casing are prohibited. Joints constitute a source of weakness and they must, therefore, be accessible, and it is recommended that their positions be indicated by a:
a) Prominent Matthew
b) Conspicuous Mark
c) Noticeable Luke
d) Visible John