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If Lis the length of the reinforcing bar and d is the diameter, the total length of straight
bar hooked at both the ends is

A) L+9d B) L+12d C) L+18d D) L+6d
A construction equipment was purchased for Rs. 2,00,000. If the useful life is

estimated as 5 years, find the percentage of average annual cost of the equipment
to the original cost assuming no scrap value.

A) 60 B) 50 C) 20 D) 40

Permissible moisture content in timber doors of thickness 50 mm and above, in Zone IV is
A) 12% B) 16% C) 14% D) 20%

Maximum cement content for conventional Reinforced Cement concrete is

A) 300 kg/m? B) 360 kg/m? ௦) 450 kg/m? D) 500 kg/m®

If the fineness modulus of a sample of fine aggregates is 4.3, the mean size of
particles in the sample is between

A) 1.18mm and 2.36 mm B) 2.36 mm and 4.75 mm

C) 0.30 mm and 0.60 mm D) 0.15 mm and 0.30 mm

Which test is used to study the resistance of aggregates to weathering action ?

A) Crushing test B) Abrasion test

C) Soundness test D) Impact test

Minimum grade of concrete to be used in reinforced concrete structures constructed
along the seacoast

A) M30 B) M20 C) M40 D) M25

For mix design of M25 concrete, the standard deviation assumed as per

IS 10262-2019 is

A) 3.5 B) 4.0 C) 4.5 D) 5.0

As per IS guidelines, for under-water concreting, the water-cement ratio shall not
exceed

A) 0.60 B) 0.50 C) 0.45 D) 0.40