◉ The pH number that indicates the greatest acidity is. Answer: 1
◉ Approximate mass of 49N weight is. Answer: 5KG
◉ The atomic number is the number of protons in an atom. Answer:
Atomic nucleus
◉ 10. Answer: Flourine has an atomic weight of 19 and an atomic
number of 9. What is the number of neutrons in the atomic nucleus?
◉ 65. Answer: An atom has 30 protons and 35 neutrons in its
nucleus. It has 30 electrons in its shells. Its atomic weight would be?
◉ Granular materials. Answer: Backfill for use around culverts and
pipes consists of
◉ Alignment of the pipe. Answer: An inspector looks through one
end of a drainage pipe. He is most likely checking
◉ Larger trench widths mean more backfill material, which
increases costs.. Answer: An important consideration in excavation
,for drainage is the trench width. Why is it important to keep the
trench width to that which is called for by the specifications, and not
larger?
◉ Obtain a small part of a lot to represent the whole.. Answer: The
main purpose of sampling any material is?
◉ Weight of water/weight of cement. Answer: What is the water
cement ratio?
◉ Used to separate fine grain from coarse grain. It carried out by
washing the soil specimen on a 60pm sieve mesh.. Answer: Wet
sieve
◉ Density check. Answer: In soil testing the test used to determine
the ratio of the weight of a given volume of material to the weight of
an equal volume of water is known as?
◉ Strength. Answer: Slump test of concrete test all but which one of
the following? Water cement ratio, admixture content, strength,
durability/workability, water content.
◉ 3 equal layers according to volume. Answer: For a concrete slump
test how is the cone to be filled with concrete?
, ◉ S 23° 30' E. Answer: How is the bearing of a line notated?
◉ Surveying tape and plumbing bob. Answer: Horizontal distances
over sloping ground are usually determined by?
◉ Less. Answer: A distance between two points 300' apart is
measured on a hot day. The tape will show a length greater than or
less than 300'?
◉ 45530-45020 = 510'
510 x 0.020 = 10.2'
1252.0 + 10.2 = 1262.2
Answer is 1262.2. Answer: A road has a grade of 2.0% with an
elevation of 1252.00 at station 450+20. What is the elevation at
station 455+30?
◉ Used to determine the subdivision of the smallest division of a
scale.. Answer: What is the varnier on a leveling rod used for?
◉ 25 pounds. Answer: What is the proper tension for a 100' steel
tape?
◉ Too large. Answer: When measuring with a steel tape a sag is
detected. What will the reading be?