TEC 120 FINAL COMPLETE STUDY GUIDE WITH
SOLVED QUESTIONS
◉ In relation to its compressive strength, the tensile strength of
concrete is
A. Much higher
B. Slightly higher
C. Nearly the same
D. slightly lower
E. much lower.
Answer: E
◉ Portland cement sets and gains strength because of a chemical
reaction with
A. Aggregates
B. Water
C. Carbon dioxide in the air
D. Oxygen in the air.
Answer: B
◉ What admixture is used to reduce potential damage to the
concrete from exposure to repeated freezing and thawing cycles?
,A. Entrained air
B. Slag
C. Pozzolan
D. Water reducer.
Answer: A
◉ The stirrups in a reinforced concrete beam are used to
A. Increase the strength of beam in bending
B. Reduce the deflection of the beam
C. Increase the strength of the beam in shear
D. Increase the durability of the beam.
Answer: C
◉ The test specimen used for determining the compressive strength
of concrete in the United States is a
A. Cylinder measuring 6 in. diameter × 12 in. high
B. Cylinder measuring 12 in. diameter × 6 in. high
C. Cube measuring 6 in. ×6 in. ×6 in.
D. Cube measuring 12 in.×12 in. ×12 in..
Answer: A
,◉ Aggregate for concrete is generally subdivided into coarse
aggregate and fine aggregate. The distinction between the two types
of aggregate is based on:
A. strength
B. surface texture
C. density
D. particle size.
Answer: D
◉ ASTM specifications classify Portland cement in five basic types,
referred to as:
A. Types A, B, C, D, and E
B. Types I, II, III, IV, and V
C. Types PC1, PC2, PC3, PC4, and PC5
D. Types X, Y, Z, P and Q.
Answer: B
◉ The most commonly specified type of Portland cement is
A. Type I / II
B. Type III
C. Type PC1
D. Type C.
, Answer: A
◉ The process of compacting freshly placed concrete in the forms
and around the reinforcing steel to remove air pockets is called:
A. Hydration
B. Compression
C. Aggregation
D. Consolidation.
Answer: D
◉ What is the name of the admixture that reduces the amount of mix
water while retaining the same workability thereby resulting in
higher-strength concrete?
A. accelerator
B. retarder
C. water-reducer
D. air-entrainment.
Answer: C
◉ The major advantage of air-entrained concrete is:
A. greater tensile strength
B. resistance to sulfate attack
SOLVED QUESTIONS
◉ In relation to its compressive strength, the tensile strength of
concrete is
A. Much higher
B. Slightly higher
C. Nearly the same
D. slightly lower
E. much lower.
Answer: E
◉ Portland cement sets and gains strength because of a chemical
reaction with
A. Aggregates
B. Water
C. Carbon dioxide in the air
D. Oxygen in the air.
Answer: B
◉ What admixture is used to reduce potential damage to the
concrete from exposure to repeated freezing and thawing cycles?
,A. Entrained air
B. Slag
C. Pozzolan
D. Water reducer.
Answer: A
◉ The stirrups in a reinforced concrete beam are used to
A. Increase the strength of beam in bending
B. Reduce the deflection of the beam
C. Increase the strength of the beam in shear
D. Increase the durability of the beam.
Answer: C
◉ The test specimen used for determining the compressive strength
of concrete in the United States is a
A. Cylinder measuring 6 in. diameter × 12 in. high
B. Cylinder measuring 12 in. diameter × 6 in. high
C. Cube measuring 6 in. ×6 in. ×6 in.
D. Cube measuring 12 in.×12 in. ×12 in..
Answer: A
,◉ Aggregate for concrete is generally subdivided into coarse
aggregate and fine aggregate. The distinction between the two types
of aggregate is based on:
A. strength
B. surface texture
C. density
D. particle size.
Answer: D
◉ ASTM specifications classify Portland cement in five basic types,
referred to as:
A. Types A, B, C, D, and E
B. Types I, II, III, IV, and V
C. Types PC1, PC2, PC3, PC4, and PC5
D. Types X, Y, Z, P and Q.
Answer: B
◉ The most commonly specified type of Portland cement is
A. Type I / II
B. Type III
C. Type PC1
D. Type C.
, Answer: A
◉ The process of compacting freshly placed concrete in the forms
and around the reinforcing steel to remove air pockets is called:
A. Hydration
B. Compression
C. Aggregation
D. Consolidation.
Answer: D
◉ What is the name of the admixture that reduces the amount of mix
water while retaining the same workability thereby resulting in
higher-strength concrete?
A. accelerator
B. retarder
C. water-reducer
D. air-entrainment.
Answer: C
◉ The major advantage of air-entrained concrete is:
A. greater tensile strength
B. resistance to sulfate attack
