LAB TEST

Slump test is performed on ____

• Mortar

• Paste

• Concrete

• All

Vicat apparatus is used for ____

• Fineness of cement

• Setting time

• Normal Consistency

• Setting time and normal consistency

Le Chatelier flask is used for _____

• Density of Hydraulic cement

• Soundness of cement

• Fineness of cement

• Sand Equivalent test

The Unit Weight of Concrete is around ______

• 2350 g/cm3

• 2350 kg/m3

• 2.35 ton/cm3

• 1500 kg/m3

The Yield strength of 16 mm diameter reinforcing bar is _____ that of 32 mm diameter one of same Grade

• Greater then

• Lower then

• similar to

• Lower or Greater then

The Sand Equivalent Test value is based on ____x100

• Clay reading / sand reading

• Sand reading / clay reading

• (Sand - Clay) / clay reading

• Clay - sand / sand

Give an estimated slump value from the picture shown

• 24 cm

• 140 mm

• 20 mm

• 30 cm

The concrete compressive strength as per ASTM is generally made on cylindrical _____ specimen at _____

• Cylindrical, 28 days

• Cubical, 28 days

• Cylindrical, 7 days

• Cubic, 7 days

The equipment shown is used for determination of ____

• Specific gravity and absorption of fine aggregates

• Specific gravity and absorption of coarse aggregates

• Specific gravity and absorption for both fine and coarse aggregates

• sand equivalent value of fine aggregates

Which of the following equipment is not used for workability tests:

• Slump cone

• VB Equipment

• Compacting factor Equipment

• Air meter Equipment