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You press the button, and there is always anticipation - will that needle smoothly run across the screen and promptly exclaim ">299Mohms" or will it start off on its journey across the screen, looking like it will easily keep going, biut ... then ... stumble somewhat to (e.g.) 180, 185 or 190...

I am looking into running three lamps from an existing ceiling rose (in parallel from the exisitng rose, so that the same single switch operate all three lamps). I am looking at using the coloured vintage type flex. The flex will chain into these ...

Standard switch just switched live. If I wanted to replace the current switch for a PIR, would I just remove the swich and replace the two core with three core and earth from the CR to the PIR?? PS Haven't bought the PIR yet, so not sure what connections they offer.

Have 2.4m ply and need to but two pioeces together to get 3m for a shop sign. If this was inside with plasterboard, I'd use scrim tape and easi-fill. What would I use for this outside joint (will be painted).

I have just taken receiptnt door, unglazed and need to order and imstall the glass. Th wood "beading" is loose ready to paoint before glazing. My main question is how do you actually oinstall the glass? Also typically what double glazing is ordered, and once you've measured the gap, what...

I have a space between a shop window (which sits on a brick wall) and a door, and I need to construct something to fit between. The gap is about 20cm. It needs to go from ground level to the top of the shopfront (about 2.8m). Would it be usualy to use 12mm ply to create a "box" and then...

Bear with me please, never done this before, but I am proposing to build a small cavity wall four courses high and have a folding door on top of this. I plan to use a damp proof membrane and bed it two courses high on the outer wall and three courses high on the inner wall. I intend to bridge...

I have an upright RSJ. I need to attach a timber to the centrer (gap) bit. I am thinking about drilling a 10mm hole down the middleof the timber/RSJ take an m10 anchor. Is that the right way to do it. Is there a recommended lenght of bolt that should be used? I have another RSJ which...

Oven about 2 years old fromn new - previously running fine. Tenant now states that sometimes, particularly when oven is on for long time that the RCD trips. They have oisolated it to the oven and not the hob (on same circuit, 32A MCB), and say that the hob does not need to be on for it to...

I need to connect A to C via B. The horizontal distance between A and the wall is about 70cm. The vertical distance betwen A and B is about 1.4m. The vertical distance between B and C is about 1m. The horizontal distance between A and C is about 1.4m So issue is, I'd really like to keep...

Does anyone know the fibre stress (f)( values TRADA use in their Joist Span Tables? I have f values of 7.5 and 5.1 respectively for C24 and C16 timbers, but I have no idea if these are the values that TRADA use for the standard tables. Any ideas?

I want to try to calculate the the appropriate size of joists for various loads from first principles without reference to the standard tables (as these tables exclude joist weight). I know there is a lot to this calculation, but my first issue is trying to calculate the weight in kN/m3 of the...

Not used metal conduit before - http://www.tradingdepot.co.uk/DEF/product/!!TD20GTEE!!/A006015/Electrical%20Supplies/Conduit%20/%20PVC%20&%20Steel%20Conduit/Metal%20/%20Steel%20Conduit%20&%20Accessories/20mm%20Galvanised%20Tee%20Junction%20Box with these Tees do you simply just use a...

e.g. CU -> L1 -> L2 -> L3 -> L4 -> L5 -> END If I want three of the five to run parallel lamps, e.g at L1, the switch also controls L1a, L1b, L1c, such that the circuit looks like : Line in - L1 -> L1a ->L1b -> L1c -> END (and similarly L2 and L3 do the same), Apart from the usual...

Side abutment question. I am installing 300 x 600 slates and am thinking about zinc soakers. http://www.roofingsuperstore.co.uk/search/?page=1&keywords=soaker&sort_by_field=Price:ASC But these don't seem big enough are are they??

Requiredd 4mm and 2.5mm flex for an oven and hob. Got it from an electrical supplier, the 2.5mm was printed on one flex, but just the "heat/butyl" code on the other something like "H05 2v2v", but no cable size. I can "barely" distinguish the difference betwen the cable when I look at it ...

1. Ring: I have cross connected phase and neutral at the CU and measured resistance at each socket to confirm no bridges - readings should not vary more than 0.05 ohms as I understand. Should I be concerned that using the plug attachment for the megger on the front of the socket the readings...

Are smoke alarms and extractor fans considered senstive equipment?

Have connected earth to line by CU to underatke some continuity testing and for testing line switching. I am pretty much taking resistance readings whenever I go along the circuits to see if everything makes sense ... I have arrived at a two way switch, and just wanted to check something - I...

I have a shower enclosure which is more than 0.6m away from a wall. By the wall I have a toilet. On the wall and above the toilet is an extractor fan, located about 2.1m high. Am I correct in thinking that a standard extractor fan can be installed as it is not in any zone?