7 (99 + 1.55 0

0: (€` + 1.65 9

Correct Answer:- Option-D
Question7 4:-The modulus of elasti 5ಎ 500011 (೮07 where *f (k)" is the characteristic compressive strength of
concrete, specified in IS : 456-2000 is based on

A:-Tangent modulus

B:-Initial tangent modulus

C:-Secant modulus

D:-Section modulus

Correct Answer:- Option-B
Question75:-As per Indian Standard Soil Classification System (15 : 1498-1970), an expression for A-line is
(0) न 0.73 (1) - 20
0.70 (४0) - 20}
{pY =0.73 (w_(L)" - 10)

;-:| ௨0.50 யு 1௦

Correct Answer:- Option-A
Question76:-The dominating microorganisms in an activated sludge process reactor are

A:-Aerobic heterotrophs

B:-Anaerobic heterotrophs

C:-Autotrophs

D:-Phototrophs

Correct Answer:- Option-A
Question77:-For sub-critical flow in an open channel, the control section for gradually varied flow profile is

A:-At the downstream end

B:-At the upstream end

C:-At the both ends

D:-At any intermediate section

Correct Answer:- Option-A
Question78:-The partial factor of safety for concrete as per [5 : 456-2000 is

A:-1.50

8:-1.15

C:-0.87

D:-0.446

Correct Answer:- Option-A
Question79:-Select the strength parameter of concrete used in design of plain jointed cement pavement from the following
choices

A:-Tensile strength

B:-Compressive strength

C:-Flexural strength

D:-Shear strength

Correct Answer:- Option-C
Question80:-As per IS 800 : 2007 the cross section in which extreme fibre can reach the yield stress but cannot develop the
plastic moment of resistance due to local നന is classified as

A:-Shear section
B:-Bending section
C:-Plastic section
D:-Semi-compact section
Correct Answer:- Option-D
Question81:-With rise in temperature, the resistance of metal conductors
A:-Increases
B:-Decreases
C:-Remains unchanged
D:-Decreases first and then remains constant
Correct Answer:- Option-A
Question82:-Calculate the resistance required for an electric heater to produce 1 kW when connected to 220 V supply
‏4.5-:ھ‎ 0
8:-48.4 ൨
@-220 0
0:-7.5 0
Correct Answer:- Option-B