# Practice Test: Question Set - 04

**1. If**

*R*and*T*are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width- (A)

*R*+

*T*

- (B)

*T*-

*R*

- (C) √(

*R*+

^{2}*T*)

^{2}- (D)

*R*-

*T*

**2. If**

*p*_{1}and*P*_{2}are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height*h*of a retaining wall, the horizontal pressure*p*per unit length of the wall, is- (A) [(

*p₁*-

*p₂*)/2]

*h*

- (B) [(

*p₁*+

*p₂*)/4]

*h*

- (C) [(

*p₁*+

*p₂*)/2]

*h*

- (D) (

*p₁*-

*p₂*) ⅔

*h*

**3. In the zone of R.C.C. beam where shear stress is less than 5 kg/cm**

^{2}, nominal reinforcement is provided at a pitch of- (A) One-half
lever arm of the section

- (B) One-third
lever arm of the section

- (C) Lever
arm of the section

- (D) One and half
lever arm of the section

**4. The transverse reinforcements provided at right angles to the main reinforcement**

- (A) Distribute
the load

- (B) Resist
the temperature stresses

- (C) Resist
the shrinkage stress

- (D) All
the above

**5. Long and short spans of a two way slab are**

*l*and_{y}*l*and load on the slab acting on strips parallel to_{x}*l*and_{x}*l*be_{y}*w*and_{x}*w*respectively. According to Rankine Grashoff theory_{y}- (A) (

*w*/

_{x}*w*)

_{y}*= (*

*l*

_{y}*/l*)

_{x}- (B) (

*w*/

_{x}*w*)

_{y}*= (*

*l*

_{y}*/l*)²

_{x}- (C) (

*w*/

_{x}*w*)

_{y}*= (*

*l*

_{y}*/l*)

_{x}^{4}

- (D) None of
these

**6. The pitch of the main bars in a simply supported slab, should not exceed its effective depth by**

- (A) Three
times

- (B) Four times

- (C) Five times

- (D) Six times

**7. High strength concrete is used in pre-stressed member**

- (A) To
overcome high bearing stresses developed at the ends

- (B) To overcome
bursting stresses at the ends

- (C) To
provide high bond stresses

- (D) All
the above

**8. If ‘**

*W’*is the load on a circular slab of radius ‘*R’*, the maximum radial moment at the centre of the slab, is- (A)

*WR²*/16

- (B) 2

*WR²*/16

- (C) 3

*WR²*/16

- (D) 5

*WR²*/16

**9. If**

*A*is the area of the foundation of a retaining wall carrying a load*W*and retaining earth of weight '*w'*per unit volume, the minimum depth (*h*) of the foundation from the free surface of the earth, is- (A)

*h*= (

*W*/

*Aw*) [(1 -

*sin φ*)/(1 + sin

*φ*)]

- (B)

*h*= (

*W*/

*Aw*) [(1 +

*sin φ*)/(1 + sin

*φ*)]

- (C)

*h*= (

*W*/

*Aw*) [(1 -

*sin φ*)/(1 + sin

*φ*)]²

- (D)

*h*= √(

*W*/

*Aw*) [(1 -

*sin φ*)/(1 + sin

*φ*)]²

**10. If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm**

^{2}and 1400 kg/cm^{2}respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is- (A) 0.496 %

- (B) 0.596 %

- (C) 0.696 %

- (D) 0.796 %

**11. The modular ratio ‘**

*m’*of a concrete whose permissible compressive stress is ‘*C’*, may be obtained from the equation.- (A)

*m*= 700/3

*C*

- (B)

*m*= 1400/3

*C*

- (C)

*m*= 2800/3

*C*

- (D)

*m*= 3500/3

*C*

**12. Enlarged head of a supporting column of a flat slab is technically known as**

- (A) Supporting
end of the column

- (B) Top
of the column

- (C) Capital

- (D) Drop panel

**13. Thickened part of a flat slab over its supporting column, is technically known as**

- (A) Drop
panel

- (B) Capital

- (C) Column
head

- (D) None of
these

**14. If ‘**

*A’*is the sectional area of a pre-stressed rectangular beam provided with a tendon pre-stressed by a force ‘*P’*through its centroidal longitudinal axis, the compressive stress in concrete, is- (A)

*P*/

*A*

- (B)

*A*/

*P*

- (C)

*P*/2

*A*

- (D) 2

*A*/

*P*

**15. Side face reinforcement shall be provided in the beam when depth of the web in a beam exceeds**

- (A) 50 cm

- (B) 75 cm

- (C) 100 cm

- (D) 120 cm

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