Practice Test: Question Set - 12
1. While designing the pile as a column, the end conditions are nearly
- (A) Both ends hinged
- (B) Both ends fixed
- (C) One end fixed and other end hinged
- (D) One end fixed and other end free
2. The internal dimensions of a ware house are 15 m × 5.6 m, and the maximum height of piles is 2.70 m, the maximum number of bags to be stored in two piles, are
- (A) 1500 bags
- (B) 2000 bags
- (C) 2500 bags
- (D) 3000 bags
3. Pick up the incorrect statement from the following. While performing preliminary test on concrete
- (A) Proportions
of the material and water should be the same as to be used at the work site
- (B) Cement
should be mixed by hand in order to maintain uniformity
- (C) Concrete
mix should be stored in air-tight containers
- (D) Concrete
ingredients should be kept at a temperature of 37° ± 2°C
4. In a spherical dome the hoop stress due to a concentrated load at crown is
- (A) Compressive everywhere
- (B) Tensile everywhere
- (C) Partly compressive and partly tensile
- (D) Zero
5. I.S. Sieve Nos. 10 mm and 4.75 mm are generally used for grading of
- (A) Coarse
aggregates
- (B) Fine
aggregates
- (C) Neither (a)
nor (b)
- (D) Both (a) and
(b)
6. Log Angles machine is used to test the aggregate for
- (A) Crushing
strength
- (B) Impact
value
- (C) Abrasion
resistance
- (D) Water
absorption
7. The property of the ingredients to separate from each other while placing the concrete is called
- (A) Segregation
- (B) Compaction
- (C) Shrinkage
- (D) Bulking
8. Pick up the correct statement from the following:
- (A) Higher
workability indicates unexpected increase in the moisture content
- (B) Higher
workability indicates deficiency of sand
- (C) If the
concrete mix is dry, the slump is zero
- (D) All the
above
9. The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than
- (A) 30
minutes
- (B) 40
minutes
- (C) 60
minutes
- (D) 90
minutes
10. The strength of concrete after one year as compared to 28 days strength is about
- (A) 10 to 15% more
- (B) 15 to 20% more
- (C) 20 to 25% more
- (D) 25 to 50% more
11. Specified compressive strength of concrete is obtained from cube tests at the end of
- (A) 3 days
- (B) 7 days
- (C) 21 days
- (D) 28 days
12. Pick up the incorrect statement from the following:
- (A) Tricalcium
silicate (C3S) hydrates rapidly
- (B) Tricalcium
silicate (C3S) generates more heat of hydration
- (C) Tricalcium
silicate (C3S) develops early strength
- (D) Tricalcium
silicate (C3S) has more resistance to sulphate attack
13. If the permissible stress in steel in tension is 140 N/mm2, then the depth of neutral axis for a singly reinforced rectangular balanced section will be
- (A) 0.35 d
- (B) 0.40 d
- (C) 0.45 d
- (D) Dependent on grade of concrete also
14. A construction joint is provided where
- (A) Bending
moment is small
- (B) Shear force
is small
- (C) The member
is supported by other member
- (D) All the
above
15. Sand generally contains salt if it is obtained from:
- (A) Nala beds
- (B) River beds
- (C) Sea beds
- (D) None of
these
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