CPSC 110 PSET 10 SOLUTION SUMMARY 2026
FULL WORKED OUT ANSWER PACKAGE
◉ Equipment needed for the capping process includes capping _____ ,
_____devices, and ______ pots. Answer: Plates, alignment, melting
◉ Plates for neat cement and high strength gypsum plaster caps should
be made of _____, _____, _____ or _____. Answer: Glass, metal granite
or diabase
◉ Sulfur mortar cap plates should be formed against _____ or _____
plates. Answer: Metal, Stone
◉ The purpose of the guide bar or bull's eye level is to ensure that caps
remain perpendicular to the axis of the cylinder within 0.5 degrees. True
or False? Answer: True
◉ To avoid accidents during reheating of cooled sulfur, use melting pots
that have _____. Answer: Peripheral heating
◉ The technician should use a stiff layer of _____ to cap fresh concrete
cylinders. Answer: Neat cement paste
, ◉ Hardened concrete cylinders should be capped with _____, _____ or
_____. Answer: High-strength gypsum paste, neat cement paste, or
sulfur mortar
◉ Plaster of paris and mixtures of plaster of paris and portland cement
are examples of suitable high strength plasters. True or False? Answer:
False
◉ Sulfur mortars and high-strength gypsum cement cubes must
demonstrate a minimum compressive strength of _____ or ___ __,
whichever is greater. Answer: 35MPa (5000 psi), the cylinder strength
◉ The cement paste should be applied to the freshly molded cylinder
from _____ to _____ hours after molding. This is to allow for _____ of
the concrete specimen. Answer: 2,4, settling
◉ The strength of the paste depends on:
a) the water-cement ratio
b) time
c) the equipment used
d) type of cement Answer: a, b and d
◉ A slight twisting action will help eliminate _____ and air _____ when
the capping plate is placed onto the mound of the paste. Answer: Excess
paste, voids
FULL WORKED OUT ANSWER PACKAGE
◉ Equipment needed for the capping process includes capping _____ ,
_____devices, and ______ pots. Answer: Plates, alignment, melting
◉ Plates for neat cement and high strength gypsum plaster caps should
be made of _____, _____, _____ or _____. Answer: Glass, metal granite
or diabase
◉ Sulfur mortar cap plates should be formed against _____ or _____
plates. Answer: Metal, Stone
◉ The purpose of the guide bar or bull's eye level is to ensure that caps
remain perpendicular to the axis of the cylinder within 0.5 degrees. True
or False? Answer: True
◉ To avoid accidents during reheating of cooled sulfur, use melting pots
that have _____. Answer: Peripheral heating
◉ The technician should use a stiff layer of _____ to cap fresh concrete
cylinders. Answer: Neat cement paste
, ◉ Hardened concrete cylinders should be capped with _____, _____ or
_____. Answer: High-strength gypsum paste, neat cement paste, or
sulfur mortar
◉ Plaster of paris and mixtures of plaster of paris and portland cement
are examples of suitable high strength plasters. True or False? Answer:
False
◉ Sulfur mortars and high-strength gypsum cement cubes must
demonstrate a minimum compressive strength of _____ or ___ __,
whichever is greater. Answer: 35MPa (5000 psi), the cylinder strength
◉ The cement paste should be applied to the freshly molded cylinder
from _____ to _____ hours after molding. This is to allow for _____ of
the concrete specimen. Answer: 2,4, settling
◉ The strength of the paste depends on:
a) the water-cement ratio
b) time
c) the equipment used
d) type of cement Answer: a, b and d
◉ A slight twisting action will help eliminate _____ and air _____ when
the capping plate is placed onto the mound of the paste. Answer: Excess
paste, voids
