Section A 2021

Question 1

The moment used for the design of a reinforced concrete slab can be expressed by which two sets of units?

Answer 1

kNm and kNm/m

Question 2

The symbol used in Eurocode 2 for the characteristic cylinder strength of concrete is:

Answer 2

Fck

Question 3

In the design of reinforced concrete beams, the symbol ‘d’ denotes:

Answer 3

The effective depth of the beam

Question 4

In the context of structural design to Eurocode, the term Med represents the moment capacity of a structural element

True or False?

Answer 4

False

Question 5

12mm dia. Shear links are used in a reinforced concrete beam. If the required Asw/s area is calculated to be 1.15, a suitable spacing of the links longitudinally is:

Answer 5

175mm

Question 6

The reason why external masonry walls in the UK are of cavity wall construction is:

Answer 6

The cavity between the two skins provides thermal insulation and prevents damp penetration

Question 7

An in-situ concrete frame is:

(Where is it produced and how?)

Answer 7

Produced on site by pouring wet concrete into formwork

Question 8

A reinforced concrete beam 800mm deep spans a clear distance of 6m between two supporting concrete walls. Each wall is 200mm thick. The effective span of the beam is:

Answer 8

6.2m

Question 9

Which of the following statements about timber is NOT correct?

Answer 9

Most of the structural timber used in this country is obtained from deciduous trees

Question 10

In which part of a masonry arch would you expect tension to occur?

Answer 10

Immediately above the extrados of the arch

Question 11

The problem of lateral torsional buckling is addressed in structural steelwork beam design by ensuring the beam is physically restrained from moving sideways.

True or False?

Answer 11

True

Question 12

The shear reinforcement required in a reinforced concrete beam is based on the shear force occurring at which position?

Answer 12

A distance inwards from the support face equal to the effective depth of the beam

Question 13

Which of the design criteria is NOT associated with serviceability?

Answer 13

Vibration

Question 14

A structural steelwork beam is being designed in S355 steel to sustain a maximum ultimate bending moment of 470kNm. Which of the following standard steel sections would be most appropriate as a starting point for calculations?

356 x 178 x 67 PM= 775
305 x 127 x 42 PM= 614
406 x 178 x 85 PM= 1730
406 x 178 x 67 PM= 1350
None of the above

Answer 14

406 x178 x 67, plastic modulus= 1350 cm3