Building Construction
The type of footing which is used to transmit heavy loads through steel columns is

Isolated footing
Well foundation
Raft foundation
Grillage foundation

ANSWER DOWNLOAD EXAMIANS APP

Building Construction
Rotary drilling

Hinders the ground water observations and permeability test
All listed here
Is not economical for holes of less than 10 cm
Is not suitable for deposits containing very coarse gravel

ANSWER DOWNLOAD EXAMIANS APP

Building Construction
During percussion drilling

Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole
Caving or mixing of strata are caused in soft soils or cohesion-less soils
The soil to a considerable depth below the bottom of the hole gets disturbed
All listed here

ANSWER DOWNLOAD EXAMIANS APP