REINFORCED CONCRETE DESIGN
QUESTIONS AND VERIFIED ANSWERS
WELL GRADED (NEW 2025/2026
UPDATE)QUESTIONS WITH VERIFIED
ANSWERS 100% CORRECT /A+ GRADE
f'c- CORRECT ANSWER-the specified compressive strength of
concrete [psi]
fc- CORRECT ANSWER-the stress of concrete [psi]
Epsilon c- CORRECT ANSWER-the strain of concrete
Epsilon cu- CORRECT ANSWER-the assumed maximum useable
compression strain in the concrete
fy- CORRECT ANSWER-the specified yield strength of the
reinforcement [psi]
fs- CORRECT ANSWER-the stress of the tension reinforcement [psi]
Epsilon s- CORRECT ANSWER-the strain in the tension reinforcement
(eqn)
, Net tensile strain in the extreme tension steel, (Epsilon t)-
CORRECT ANSWER-the strain in the extreme layer of tension
reinforcement
rho- CORRECT ANSWER-the longitudinal tension reinforcement ratio
= As/bd
b (whitney stress block)- CORRECT ANSWER-width of compression
zone
c (whitney stress block)- CORRECT ANSWER-cover dimension
depth to neutral axis
c=
Concrete compression force, Cc- CORRECT ANSWER-Cc =
0.85(β1)(fc')(b)(c)
Steel Tension Force- CORRECT ANSWER-T = Asfy
a- CORRECT ANSWER-depth of stress block
a = (β1)(c) =
Steps for nominal moment capacity of singly reinforced beam
sections- CORRECT ANSWER-1. Compute the steel tension force, T
2. Compute the area of compression stress block, Cc
QUESTIONS AND VERIFIED ANSWERS
WELL GRADED (NEW 2025/2026
UPDATE)QUESTIONS WITH VERIFIED
ANSWERS 100% CORRECT /A+ GRADE
f'c- CORRECT ANSWER-the specified compressive strength of
concrete [psi]
fc- CORRECT ANSWER-the stress of concrete [psi]
Epsilon c- CORRECT ANSWER-the strain of concrete
Epsilon cu- CORRECT ANSWER-the assumed maximum useable
compression strain in the concrete
fy- CORRECT ANSWER-the specified yield strength of the
reinforcement [psi]
fs- CORRECT ANSWER-the stress of the tension reinforcement [psi]
Epsilon s- CORRECT ANSWER-the strain in the tension reinforcement
(eqn)
, Net tensile strain in the extreme tension steel, (Epsilon t)-
CORRECT ANSWER-the strain in the extreme layer of tension
reinforcement
rho- CORRECT ANSWER-the longitudinal tension reinforcement ratio
= As/bd
b (whitney stress block)- CORRECT ANSWER-width of compression
zone
c (whitney stress block)- CORRECT ANSWER-cover dimension
depth to neutral axis
c=
Concrete compression force, Cc- CORRECT ANSWER-Cc =
0.85(β1)(fc')(b)(c)
Steel Tension Force- CORRECT ANSWER-T = Asfy
a- CORRECT ANSWER-depth of stress block
a = (β1)(c) =
Steps for nominal moment capacity of singly reinforced beam
sections- CORRECT ANSWER-1. Compute the steel tension force, T
2. Compute the area of compression stress block, Cc
