45.

46.

47.

48.

49.

50.

062/23

In PERT analysis, the time estimates of activities and probability of their occurrence

follow

A) Normal distribution curve

B) Poisson’s distribution curve

C) Rayleigh distribution curve
)

D) Beta distribution curve

In an activity, if the latest start time is 28 days and the earliest start time is 18 days,
then the total float shall be

A) 46 days B) 10 days C) 9 days D) 5 days

Quality control cost estimated as

A) Prevention cost + Appraisal cost

B) Failure cost + Prevention cost

C) Prevention cost + Internal failure cost
)

D) Internal failure cost + External failure cost

What shall be the minimum distance of a powerline from any component of scaffold ?

A) 1.5m B) 25m

७) 3m D) 4m

As per IS 13920-2016, minimum dimension of a column shall be
A) 300 mm B) 200 mm

C) 250 mm D) 400 mm

Which of the following statements is correct, in the context of acceptance criteria of
concrete specified in IS 456-2000 ?

Statement 1 : If the strength of three cubes tested at 28 days is 21, 24 and 23 MPa,
the concrete can be considered as acceptable as M20 grade concrete.

Statement 2 : If the strength of three cubes tested at 28 days is 21, 24 and 23 MPa,
the concrete can be considered as acceptable as M25 grade concrete.

A) Both statements are true

B)

C) Statement 1 is false and statement 2 is true
D)

Statement 1 is true and statement 2 is false

Both statements are false