For effective drainage, the finished surface of flat roof should have a minimum slope of

John, Jack, Joseph and Jordan participated in a running race. Only the winner finished the race in 10 minutes. Which two pieces of information can tell you who the winner was? (i) John finished the race in 16 minutes . (ii) Joseph finished the race earlier than Jack by 2 minutes. (iii) Jack finished the race later than Jordan by 4 minutes. (iv) Jordan finished the race earlier than John by 6 minutes. (v) John finished the race later than Joseph by minutes.

A

I and II

B

I and IV

C

II and III

D

II and V

In flat roof of reinforced cement concrete, the recommended angle of slope, is

A

Zero

B

A few degrees

C

10°

D

200°

The lower edge of the pitched roof, from where the rain water of the roof surface drops down, is known as

A

Hip

B

Gable

C

Ridge

D

Eaves

The opening provided in sloping roof with its top parallel to the roof surface, is called

A

Dormer window

B

Sky light window

C

Lantern window

D

Louvered window

The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in

A

aqueduct and syphon aqueduct

B

aqueduct and super passage

C

super passage and canal syphon

D

level crossing

What does the underlined word mean in the following sentence?The old man's house, badly in need of paint, was leaning to one side and had holes in the roof, but one side and had holes in the roof, but

A

poorly built

B

old-fashioned

C

run down

D

dirty

Mansard roof is a roof which slopes in

A

Two directions without break in the slope on each side

B

Two directions with break in the slope on each side

C

Four directions without break in the slope on each side

D

Four directions with break in the slope on each side

A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will

A

Remain horizontal

B

Slant up towards direction of pull

C

Slant down towards direction of pull

D

None of the above

The low flat central area of a basin of inland drainage is called:

A

Playa

B

Affusion

C

Afet

D

Aquifer

P, Q, R are employed to do a work for Tk. 5,750. P and Q together finished 1923 of work and Q and R together finished 823 of work. Wage of Q, in Taka, is

A

1,000

For effective drainage, the finished surface of flat roof should have a minimum slope of

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