CMT FINAL EXAM questions and answers 2026\2027
A+ Grade
Basic Requirements for Placing Concrete
- correct answer Perserve Concrete Quality
- Water-cement ratio
- Slump
- Air-content
- Homogeneity
Avoid Separation of aggregate and mortar
Avoid Excess horizontal movement
Consolidate adequately
Preparation before placing includes
- correct answer - Trimming
- Moistening
- Compacting
Depositing Concrete
- correct answer DO NOT
- disturb saturated subgrades so bearing capacity is maintained
- deposit on frozen subgrade
Deposit continuously and as near as possible to its final position
Rate of placement should be such that previously placed concrete has not set when the next layer is
placed upon it
, Slab Construction
- correct answer start placing along perimeter at one end with each batch discharged against previously
placed concrete
DO NOT
- dump in sperate piles & then level and work together
- deposit in large piles & then move horizontally into position
These practices result in segregation (mortar flows ahead of coarser material)
Effective Use of Wheelbarrows
- correct answer Discharging into previously placed concrete
Pavement Slab
- correct answer Concrete deposited in front of slipform paver by dump trucks
Concrete spread evenly across the sub grade by the paver before consolidation and finishing
Paving Train
- correct answer - Cure Machine
- Tine Machine
- Paver
- Spreader 2
- Spreader 1
Underwater Placement Methods
- correct answer Tremie
Advantages: can be used to funnel concrete down through the water into the structure
Watch For: Discharge end always has to be buried in fresh concrete to ensure seal between water &
concrete mass
Consolidating Concrete
- correct answer Internal Vibration
External Vibration
- Form vibrators
A+ Grade
Basic Requirements for Placing Concrete
- correct answer Perserve Concrete Quality
- Water-cement ratio
- Slump
- Air-content
- Homogeneity
Avoid Separation of aggregate and mortar
Avoid Excess horizontal movement
Consolidate adequately
Preparation before placing includes
- correct answer - Trimming
- Moistening
- Compacting
Depositing Concrete
- correct answer DO NOT
- disturb saturated subgrades so bearing capacity is maintained
- deposit on frozen subgrade
Deposit continuously and as near as possible to its final position
Rate of placement should be such that previously placed concrete has not set when the next layer is
placed upon it
, Slab Construction
- correct answer start placing along perimeter at one end with each batch discharged against previously
placed concrete
DO NOT
- dump in sperate piles & then level and work together
- deposit in large piles & then move horizontally into position
These practices result in segregation (mortar flows ahead of coarser material)
Effective Use of Wheelbarrows
- correct answer Discharging into previously placed concrete
Pavement Slab
- correct answer Concrete deposited in front of slipform paver by dump trucks
Concrete spread evenly across the sub grade by the paver before consolidation and finishing
Paving Train
- correct answer - Cure Machine
- Tine Machine
- Paver
- Spreader 2
- Spreader 1
Underwater Placement Methods
- correct answer Tremie
Advantages: can be used to funnel concrete down through the water into the structure
Watch For: Discharge end always has to be buried in fresh concrete to ensure seal between water &
concrete mass
Consolidating Concrete
- correct answer Internal Vibration
External Vibration
- Form vibrators
