Free MCQs & Online Quiz Practice for Exams

Q: High BOD in wastewater generally indicates?

A) High concrete strength

B) Pure drinking water

C) Very low organic pollution

D) A high amount of biodegradable organic matter

Q: What is active earth pressure?

A) Pressure inside a water pipe

B) Pressure from vehicle tires

C) Earth pressure exerted when a retaining wall moves sufficiently away from the backfill

D) Pressure caused by concrete curing

Q: What is the primary purpose of a shear key in certain concrete structures?

A) To increase concrete color

B) To measure settlement

C) To improve resistance against sliding between interfaces

D) To reduce reinforcement cover

Q: Which cement is commonly used for architectural finishes where appearance is important?

A) White cement

B) Rapid hardening cement

C) Low heat cement

D) Sulphate resisting cement

Q: What is stripping of formwork?

A) Testing cement fineness

B) Compaction of soil around formwork

C) Removal of formwork after concrete has gained sufficient strength

D) Application of plaster to formwork

Q: What is the purpose of the aggregate crushing value test?

A) To determine resistance to crushing

B) To measure concrete slump

C) To measure cement setting time

D) To determine soil permeability

Q: What is a benchmark with a known reduced level called?

A) Temporary datum

B) Arbitrary contour

C) Permanent benchmark

D) Reduced level

Q: What is the neutral axis in a beam section?

A) The center of the foundation

B) The line where longitudinal bending stress is approximately zero

C) The outermost concrete surface

D) The point of maximum shear only

Q: Why are compression bars sometimes provided in a reinforced concrete beam?

A) To increase moment capacity and for other structural requirements

B) To replace all stirrups

C) To reduce concrete strength

D) To eliminate dead load

Q: A two-way slab generally transfers load in?

A) Only through walls

B) Only through columns

C) Two perpendicular directions

D) One direction only

Q: What is the purpose of a culvert?

A) To store cement

B) To support a building roof

C) To measure traffic speed

D) To allow water to pass beneath a road or embankment

Q: What is water-cement ratio?

A) Ratio of water mass to cement mass

B) Ratio of aggregate mass to water mass

C) Ratio of cement mass to concrete volume

D) Ratio of cement volume to aggregate volume

Q: Why is excessive water generally undesirable in concrete?

A) It always increases durability

B) It can increase porosity and reduce strength

C) It eliminates bleeding

D) It increases cement strength automatically

Q: What is a doubly reinforced beam?

A) A beam containing two types of concrete

B) A beam supported at two points only

C) A beam reinforced with steel in both tension and compression zones

D) A beam without stirrups

Q: What is the purpose of a concrete cover block?

A) To support scaffolding only

B) To increase cement content

C) To measure beam length

D) To maintain the specified distance between reinforcement and formwork surface

Q: What is the main characteristic of self-compacting concrete?

A) It flows and compacts under its own weight

B) It requires heavy mechanical vibration

C) It contains no cement

D) It cannot flow through reinforcement

Q: What is temporary adjustment of a theodolite primarily intended to achieve?

A) Proper setup and accurate measurement from the instrument station

B) Concrete curing

C) Road compaction

D) Permanent foundation construction

Q: What is the main purpose of a trial mix in concrete production?

A) To eliminate quality control

B) To reduce aggregate size only

C) To determine building height

D) To determine a suitable mix proportion meeting specified requirements

Q: What is the main advantage of well-graded aggregate?

A) It generally reduces voids and improves packing

B) It eliminates the need for water

C) It prevents all cracking

D) It always increases cement consumption

Q: What does concrete grade generally indicate?

A) Aggregate shape

B) Cement fineness only

C) Characteristic compressive strength

D) Color of concrete