Practice Test: Question Set - 14
1. Sinking of an intermediate support of a continuous beam
(i) Reduces the negative moment at support
(ii) Increases the negative moment at
support
(iii) Reduces the positive moment at center
of span
(iv) Increases the positive moment at center
of span
The correct answer is
- (A) (i) and (iii)
- (B) (i) and (iv)
- (C) (ii) and (iii)
- (D) (ii) and (iv)
2. High temperature
- (A) Increases
the strength of concrete
- (B) Decreases
the strength of concrete
- (C) Has
no effect on the strength of concrete
- (D) None
of these
3. Horizontal construction joints in concrete walls are generally provided at
- (A) Soffit level
- (B) Window sill
level
- (C) Floor level
- (D) All the
above
4. Stress strain curve of high tensile steel
- (A) Has a definite yield point
- (B) Does not show definite yield point but yield point
is defined by 0.1% proof stress
- (C) Does not show definite yield point but yield point
is defined by 0.2% proof stress
- (D) Does not show definite yield point but yield point
is defined by 2% proof stress
5. Addition of pozzolana to cement causes
- (A) Reduction
in permeability
- (B) Loss
of heat of hydration
- (C) Reduction
in bleeding
- (D) All
the above
6. Permissible compressive strength of M 200 concrete grade is
- (A) 100 kg/cm2
- (B) 150 kg/cm2
- (C) 200 kg/cm2
- (D) 250 kg/cm2
7. The minimum diameter of longitudinal bars in a column is
- (A) 6 mm
- (B) 8 mm
- (C) 12 mm
- (D) 16 mm
8. The high strength of rapid hardening cement at early stage, is due to its
- (A) Finer
grinding
- (B) Burning
at high temperature
- (C) Increased
lime cement
- (D) Higher
content of tricalcium
9. Sand requiring a high water cement ratio, belongs to
- (A) Zone I
- (B) Zone II
- (C) Zone III
- (D) Zone IV
10. Minimum grade of concrete to be used in reinforced concrete as per IS: 4561978 is
- (A) M 15
- (B) M 20
- (C) M 10
- (D) M 25
11. While compacting the concrete by a mechanical vibrator, the slump should not exceed
- (A) 2.5 cm
- (B) 5.0 cm
- (C) 7.5 cm
- (D) 10 cm
12. Non-uniform compaction may cause the concrete
- (A) Porous
- (B) Non-homogeneous
- (C) Reduced
strength
- (D) All
the above
13. Modulus of rupture of concrete is a measure of
- (A) Flexural tensile strength
- (B) Direct tensile strength
- (C) Compressive strength
- (D) Split tensile strength
14. M10 grade of concrete approximates
- (A) 1 : 3 : 6
mix
- (B) 1 : 1 : 2
mix
- (C) 1 : 2 : 4
mix
- (D) 1 : 1.5 : 3
mix
15. Higher workability of concrete is required if the structure is
- (A) Made
with cement concrete
- (B) Thick
and reinforced
- (C) Thin
and heavily reinforced
- (D) Thick
and heavily reinforced
Blogger Comment
Facebook Comment