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Inspection chamber

Description

This is a set of questions suitable for unit 228 part 1 of the City and Guild's 4839 Certificate in Construction. It is also suitable for general knowledge questions in bricklaying or general construction.
John Hodgson
Quiz by John Hodgson, updated more than 1 year ago
John Hodgson
Created by John Hodgson over 4 years ago
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Resource summary

Question 1

Question
What kind of bricks are recommended to build a brick inspection chamber?
Answer
  • Clay common brick
  • Engineering brick
  • Facing brick
  • Sand-lime brick

Question 2

Question
Why is English bond an excellent bond to use for an inspection chamber?
Answer
  • It is aesthetic
  • It is one of the weakest bonds and allows for movement
  • You need fewer bricks to build the wall
  • It is a strong bond which resists structural forces

Question 3

Question
How many bricks per m2 are typically needed for an inspection chamber?
Answer
  • 60
  • 120
  • 180
  • 20

Question 4

Question
A rocker pipe is a joint that allows slight movement so that the drainage is not damaged if minor settlement occurs
Answer
  • True
  • False

Question 5

Question
Benching refers to the gradient of a pipe
Answer
  • True
  • False

Question 6

Question
What should the gauge of 4 courses measure using standard bricks?
Answer
  • 75mm
  • 150mm
  • 300mm
  • 450mm

Question 7

Question
What are step irons used for?
Answer
  • They are built into a wall to strengthen it below ground
  • They are used to create perfect 10mm joints between the bricks
  • They are steps built into a chamber to allow a person access
  • They are step ladders to allow access into a trench

Question 8

Question
Benching is made from bricks and limestone.
Answer
  • True
  • False

Question 9

Question
What should be the length of 4 standard bricks when laid lengthways on mortar?
Answer
  • 225mm
  • 890mm
  • 900mm
  • 1790mm

Question 10

Question
A suitable mix to use below ground is 1:6.
Answer
  • True
  • False

Question 11

Question
What is a suitable base for an inspection chamber?
Answer
  • Concrete foundation
  • Gravel
  • Clay
  • Hardcore

Question 12

Question
In a 1:6 mortar mix, what does the 1 refer to?
Answer
  • Sand
  • Gravel
  • Ballast
  • Cement

Question 13

Question
In a 1:6 mortar mix, what does the 6 refer to?
Answer
  • Sand
  • Stone
  • Gravel
  • Cement

Question 14

Question
Where should a queen closure be placed in a wall?
Answer
  • Any place it is needed
  • In the direct centre of the wall
  • Next to the corner header
  • On the bottom course for strength purposes

Question 15

Question
Bricklaying mortar is usually made using sharp sand.
Answer
  • True
  • False
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