MAINTAINENCE AND REPAIR STRATEGIES

The average rebound number of above 40 for concrete indicates

• Very good layer of concrete

• Good layer of concrete

• Poor concrete

• Delaminated

The ultrasonic pulse velocity test configuration shown in Fig is known as

• Direct Configuration

• Indirect Configuration

• Semi Direct Configuration

• None of the above

Select the non destructive test method for masonary structures within the following

• Surface hardness

• Flat jack test

• Stress wave technique

• Both A and C

In the given figure the stress profile at the corner of the window is expected to be

• Linear

• Smooth

• Accompanied with a jump in stress magnitude

• Parabolic

After doing core test compressive strength of core is found by compression testing machine the equivalent cube compressive strength of concrete is equal to

• Cylinder compressive strength

• 5/4 times cylinder compressive strength

• 4/5 times cylinder compressive strength

• 1/2 times cylinder compressive strength

the deformation in black circle is attributed to

• Flexural buckling

• buckling due to compressive force in web

• buckling due to shear force

• None of the above

Panel crushing as shown in figure is expected to occur

• due to compressive force exerted by beam flange on column

• due to tension force exerted by beam flange on column

• due to shearforce exerted by beam flange on column

• both B &C

Type of failure shown in figure is referred to as

• Panel crushing

• Panel buckling

• End plate fracture

• None of these

Defect in overhead tank often encountered include

• Distress due to corrosion in steel

• Distress in staging element of water tank

• Distress due to temperature effect

• None of the above

The factor affecting compatibility of retrofitting material are

• Drying shrinkage

• Creep

• Thermal expansion

• None of the above