79.

80.

81.

82.

83.

84.

85.

114/23

The suggested range of slump value for pumpable concrete
A) 50-100 B) 75-100
C) 25-75 0) 100 - 150

A test is done to assess the quality of concrete by ultrasonic pulse velocity method
as per IS : 13311 (Part 1) — 1992. The Pulse Velocity by Cross Probing obtained is
4 km/sec. Then in which concrete quality grading is it belongs to ?

A) Poor B) Doubtful
C) Excellent D) Good

Which of the following load combination is used for limit state design of reinforced
concrete structures under ultimate limit state ?

A) 1DL+1LL B) 1.5DL+1.5 LL
C) 1DL+1.5LL D) 0.9DL+1 LL

The value for strain of tension steel (cu) for a steel rod with fy = 500 MPa and
E,=2x 105 MPa

A) 0.0031 B) 0.0052

C) 0.0042 D) 0.0033

What is the value for compressive force obtained from the stress block given in
IS 456 — 2000 for an R. C. C. beam with f,, (characteristic compressive strength) =
20 MPa, x,, = 200 mm and width of beam b = 300 mm ?

A) 432 KN B) 554 KN
C) 624 KN D) 724 KN

The limiting values of the depth of neutral axis, based on the assumptions given in
IS 456 for a grade of steel of 500 is

A) 0.48d 8) 0466
©) 0.536 0) 0.34 6

As per IS 456 — 2000 the span to effective depth ratio of continuous slab of shorter
spans (up to 3.5 m) with mild steel reinforcement and loading class up to 3 kN/mm? is

A) 35 B) 45 C) 50 D) 40

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