by Sunday | Sep 22 | NABTEB QUESTIONS
(i) The number of tiles to be used for the whole floors and (ii) The cost of tiles to be used if a crate of 80 tiles cost 1250.00naira. ANSWER Area to be tiled: (25m x 16m) x 2= 800m² Area of one tile: (0.2 x 0.15)m 2 = 0.03m² No of tiles to be used = 800m²/0.03m² =...
by Sunday | Sep 22 | NABTEB QUESTIONS
ANSWER: Advantages of Rendering: (i) It prevents water penetration. (ii) It improves appearance. (iii) Weather proof.
by Sunday | Sep 22 | NABTEB QUESTIONS
ANSWER For the external wall surface: 1 part of Portland cement ½ part lime; 44 ½ parts of sand by volume. 1:1:5 to 6 parts cement, lime and sand OR 1 part cement to 6 parts sand. For Internal wall Finish: 1:0: ¼ of cement lime and...
by Sunday | Sep 22 | NABTEB QUESTIONS
ANSWER The sequence is as follows: (i) The brick joints should be raked out to form a key for the under coat (ii) The surface of the wall should be made free of dirt and other things that will impair bonding. (iii) Wet the surface with water (iv) Apply rich mix mortar...
by Sunday | Sep 22 | NABTEB QUESTIONS
ANSWER: (i) Reduction in the cost of pumping/evacuation (ii) Reduction in the cost of sewage treatment
by Sunday | Sep 22 | NABTEB QUESTIONS
ANSWER: (i) A manhole is an inspection chamber exceeding 900mm in depth. There are iron steps or ladder built in the manhole wall at 300mm height to provide access into the manhole where the depth is. (ii) Benching is a weathering construction made at the sides of the...