A. innermost annular rings around the pith
B. portion of timber between heartwood and cambium layer
C. thin layers below the bark
D. thin fibre which extends from the pith outwards and holds the annular rings together
Related Mcqs:
- Gypsum consists of______________?
A. H2S and C02
B. CaS04 and H20
C. Lime and H20
D. C02 and calcium - Couple close roof is suitable for maximum span of______________?
A. 2.5 m
B. 3.5 m
C. 4.5 m
D. 5.5 m - Single flemish bond consists of___________________?
A. double flemish bond facing and Eng-lish bond backing in each course
B. English bond facing and double flemish bond backing in each course
C. stretcher bond facing and double flemish bond backing in each course
D. double flemish bond facing and header bond backing in each course - A good building stone should not absorb water more than_____________?
A. 5%
B. 10%
C. 15%
D. 20% - Specific gravity for most of the building stones lies between_____________?
A. 1.5 to 2.0
B. 2.0 to 2.5
C. 2.5 to 3.0
D. 3.0 to 3.5 - Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is_________________?
A. 0°
B. 30°
C. 45°
D. 90° - Quick lime is (1) slow in setting (2) rapid in slacking (3) good in strength The correct answer is____________?
A. only (1)
B. only (2)
C. both (1) and (2)
D. both (2) and (3) - The main constituent of cement which is responsible for initial setting of cement is_________________?
A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. all of the above - Which of the following cements contains maximum percentage of dicalcium silicate?
A. ordinary Portland cement
B. low heat cement
C. rapid hardening cement
D. sulphate resisting cement - The type of joint commonly used at the junction of a principal rafter and tie beam in timber trussess is__________________?
A. mortise and tennon joint
B. oblique mortise and tennon joint
C. butt joint
D. mitred joint
