Related Questions

The most commonly used retarder in cement is
A Gypsum
B Calcium chloride
C Calcium carbonate
D None of the above
For the supply of materials for concrete, form work reinforcing and placing of concrete, removal of form work and curing of concrete, number of bar(s) required on bar chart, is
A 1
B 2
C 3
D 4
what is the monthly salary of Rahman ? Statements : 1. Rahman's basic salary is Tk. 100 more Rajan's salary who also serves in Rahman's company. 2. Other allowances drawn by Rajan besides his basic salary are Tk. 2,000 per month which is TK. 50 less than Rahan's salary . 3. Rajan's basic salary is TK. 1550 per month.
A Only II
B Only II and III
C Only I and II
D All I , II and II
How does the strength of concrete differ with age of concrete?
A Increases
B Decreases
C No effect
D Increases, then decreases
If a is the offset of concrete bed in cms, and d is the depth of concrete bed in cms, then
A d = 0.445 a
B d = 0.557 a
C d = 0.775 a
D None of these
The maximum shear stress (q) in concrete of a reinforced cement concrete beam is
A $$\frac{{{\text{Shear force}}}}{{{\text{Lever arm}} \times {\text{Width}}}}$$
B $$\frac{{{\text{Lever arm}}}}{{{\text{Shear force}} \times {\text{Width}}}}$$
C $$\frac{{{\text{Width}}}}{{{\text{Lever arm}} \times {\text{Shear force}}}}$$
D $$\frac{{{\text{Shear force}} \times {\text{Width}}}}{{{\text{Lever arm}}}}$$
Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
A Tensile strength
B Compressive strength
C Young's modulus
D Thermal co-efficient of expansion
An employee is entitled to 20% of his basic pay as dearness Allowance (DA). If his basic pay is Tk. 6300, what is total pay.
A Tk. 1260
B Tk. 4800
C Tk. 7200
D Tk. 7560
Basic motion time study gives times for basic motions in ten thousandths of
A Second
B Minute
C Hour
D Day
The purpose of reinforcement in pre-stressed concrete is
A To provide adequate bond stress
B To resist tensile stresses
C To impart initial compressive stress in concrete
D All of the above

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