Civil Engineering MCQ Short Test-11
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PWD, WRD, SSC, MPSC, ZP, नगरपरिषद, जलसंपदा, सरळसेवा परीक्षा साठी उपयुक्त
1➤ The relationship between void ratio e and porosity n is given by
ⓑ n= 1/e
ⓒ n= 1/(1+e)
ⓓ 1+n= 1/(1+e)
2➤ void ratio of sample is given by 0.58 what is porosity of given soil ?
ⓑ 0.367
ⓒ 0.963
ⓓ 123.00
3➤ Which of the following type of roller is most suitable for proof rolling subgrades and for finishing operation of fills with clayey soils?
ⓑ Vibratory roller
ⓒ Smooth wheel roller
ⓓ Sheepsfoot roller
4➤ For keeping concrete wet to enable it to attain full strength is known as
ⓑ wetting
ⓒ drenching
ⓓ curing
5➤ segregation is responsible for
ⓑ surface scaling in concrete
ⓒ porous layers in concrete
ⓓ all the above
6➤ A concrete using an air entrained cement.
ⓑ is more plastic and workable
ⓒ has strength less than 10% to 15%
ⓓ is free from segregation and bleeding
7➤ Di-calcium silicate (C2S).
ⓑ hardens rapidly
ⓒ hydrates rapidly
ⓓ provides less ultimate strength to cement
8➤ The minimum percentage of chemical ingredient of cement is that of.
ⓑ magnesium oxide
ⓒ lime
ⓓ iron oxide
9➤ Ware house pack' of cement means.
ⓑ pressure exertion of the bags of upper layers
ⓒ pressure compaction of the bags on lower layers
ⓓ packing the ware house
10➤ The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called.
ⓑ bulking
ⓒ bleeding
ⓓ creep
11➤ Strength of concrete increases with.
ⓑ decrease in curing time
ⓒ increase in water-cement ratio
ⓓ decrease in size of aggregate
12➤ The strength of concrete after one year as compared to 28 days strength is about.
ⓑ 15 to 20% more
ⓒ 20 to 25% more
ⓓ 25 to 50% more
13➤ Effectively held in position at both ends restrained against rotation at one end
ⓑ 0.80L
ⓒ 1.5L
ⓓ 0.65L
14➤ The fineness modulus of fine aggregate is in the range of.
ⓑ 5.0 to 7.0
ⓒ 3.5 to 5.0
ⓓ 6.0 to 8.5
15➤ Modulus of elasticity of steel as per IS : 456-1978 shall be taken as.
ⓑ 200 kN/cm2
ⓒ 200kN/mm2
ⓓ 2xl06N/cm2
16➤ According to IS: 456-1978, the maximum reinforcement in a column is.
ⓑ 6 %
ⓒ 2 %
ⓓ 8 %
17➤ The most economical section for a steel column is
ⓑ Rectangle section
ⓒ I-section
ⓓ Tubular section
18➤ In reinforced concrete footing on soil, the minimum thickness at edge should not be less than.
ⓑ 200 mm
ⓒ 100 mm
ⓓ 250 mm
19➤ Maximum percentage reinforcement in case of slabs is limited to.
ⓑ 6
ⓒ 1
ⓓ 8
20➤ In a counterfort retaining wall, the main reinforcement in the stem at mid span is provided on.
ⓑ both front face and inner face
ⓒ front face only
ⓓ none of the above
21➤ The load factors for live load and dead load are taken respectively as.
ⓑ 1.5 and 1.5
ⓒ 1.5 and 2.2
ⓓ 2.2 and 2.2
22➤ In a spherical dome the hoop stress due to a concentrated load at crown is.
ⓑ partly compressive and partly tensile
ⓒ compressive everywhere
ⓓ zero
23➤ Which of the following has high tensile strength ?
ⓑ heat treated rolled wires
ⓒ plain hot rolled wires
ⓓ all have same tensile strength
24➤ Metacentric height for small values of angle of heel is the distance between the.
ⓑ centre of buoyancy and metacentre
ⓒ centre of gravity and centre of buoy-ancy
ⓓ free surface and centre of buoyancy
25➤ If a vessel containing liquid moves downward with a constant acceleration equal to 'g' then.
ⓑ the pressure in the liquid mass is greater than hydrostatic pressure
ⓒ the pressure throughout the liquid mass is atmospheric
ⓓ none of the above
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