______ consists of a vibrating unit mounted on a screed, plate or roller.

Related MCQs

• a _____ roller is a multi-purpose roller which is used for various purposes and for practically all type of roads.
• ______ are usually mounted on two or four pneumatic tyred wheels.
• ______ are cranes of swing jib type and are mounted on high steel towers.
• in _____ type of cofferdam consists of a mixture of sand and clay which is filled in a bag and placed instead of earth or rock to form a cofferdam.
• ______ process consists of making a number of holes in the ground and then filling these holes by the cement grout under pressure.
• _______ consists of a large bucket which is attached to a tractor.