MWA- A

Question 1

At what decibels is hearing protection required

Answer 1

85 dC

Question 2

What is the ratio for when setting up a ladder

Answer 2

4:1

Question 3

How tall are the toe boards on a scaffold

Answer 3

100mm or 4”

Question 4

What is the maximum clearance between the scaffolding platform and toe board

Answer 4

1/2” or 13mm

Question 5

at what height are guardrails on a scaffold required

Answer 5

10ft or 3m

Question 6

How long are hard hats certified for

Answer 6

5 years

Question 7

How often do you have to change the lining of your hard hat

Answer 7

anually

Question 8

What does it mean to lockout an equipment

Answer 8

when the equipment must not be used except by authorized personnel

Question 9

What is fall arrest

Answer 9

a system that will stop the workers fall before the worker hits the surface below

Question 10

What are examples of a fall protection system

Answer 10

guardrails, full body harness w/ an anchor, control zones

Question 11

At what height is fall protection required

Answer 11

3m or 10ft

Question 12

who must ensure that a fall protection system is used

Answer 12

the employer

Question 13

what is the maximum free fall limit for a personal fall arrest system without a shock absorber

Answer 13

1.2m or 4ft

Question 14

are combination locks allowed to be used for lockout

Answer 14

no

Question 15

what is a enclosed or partially closed space, that is no intended for continuous human occupancy

Answer 15

a confined space

Question 16

who can maintain broken equipment

Answer 16

certified maintenance

Question 17

who can remove a lockout

Answer 17

the person who locked out the tool or supervisor, and follow company procedures

Question 18

what tool is used to tighten a flat edged fitting

Answer 18

a spud wrench

Question 19

what does a flashback arrestor do on an oxy-acetylene tank

Answer 19

flame traveling into the flame

Question 20

when using a hacksaw how many teeth should be in contact with the work piece

Answer 20

3

Question 21

What are class A fire extinguishers used on

Answer 21

fires involving ordinary combustible materials : wood,paper, textitles

Question 22

what is the safety device on a acetylene cylinder

Answer 22

a fusible link

Question 23

There is a fire that engulfs live electrical equipment, what class fire extinguisher must be used

Answer 23

class C

Question 24

What are class B fire extinguishers used on

Answer 24

combustible vapours such as gasoline

Question 25

what are class D fire extinguishers used on

Answer 25

fires of high intensity that may occur with certain combustible metals such as titanium, magnesium, zirconium, sodium and potassium

Question 26

What are in class c fire extinguishers

Answer 26

co2 or dry chemicals

Question 27

what are acetylene tanks always filled with

Answer 27

acetone

Question 28

how is a pipe wrench measured

Answer 28

the inside of the hook jaw to the end of the handle with the jaw completely open

Question 29

on a soil pipe cutter what part cuts the cast iron

Answer 29

the rollers(wheels) on the chain

Question 30

if black iron pipe is to be install in a small place and you cannot use regular pipe wrenches what must you use

Answer 30

a chain wrench

Question 31

at what current can fatal injury occur

Answer 31

50amps

Question 32

how far should you work away from powerlines

Answer 32

3m or 10' depending on local, provincial, state and federal laws

Question 33

what is the minimum amount and size of the planks used for toeboards on scaffolding

Answer 33

2 planks @ 2" x 10"

Question 34

how high must the guard rails be place

Answer 34

42" above the working platform

Question 35

if trench walls are required to be sloped what is the ratio

Answer 35

3:4, 3 down 4 over

Question 36

what is a tag line

Answer 36

used to help stabilize the load usually made of fiber

Question 37

what is a common tag line

Answer 37

a bowline

Question 38

what does wll stand for and mean in relation to rigging

Answer 38

Working load limit, the maximum allowable load a rigging equipment can safely lift

Question 39

what must be done before strapping and lifting an object

Answer 39

inspect the straps

Question 40

What type of drawing shows gridlines and exact locations of appliances

Answer 40

Architect drawing

Question 41

what are mechanical drawings

Answer 41

shows the layout and piping and equipment of mechanical systems

Question 42

if a waterline and drainage pipe are placed in the same trench, what is the configuration and why

Answer 42

the waterline is always above and the drainage on the side, for cross-connection purposes

Question 43

what is the difference between an detail drawing symbol and elevation symbol

Answer 43

the elevation symbol has a an arrow

Question 44

who can perform maintenance on a non-functional powder actuated tool

Answer 44

the manufacturer or a certified maintenance

Question 45

when are double line drawings used

Answer 45

when accurate scale and more realistic appearance is required

Question 46

what does it mean when there is an x or o on the single line drawing of a pipe

Answer 46

it is butt welded

Question 47

what is the most important drawing for a plumber

Answer 47

the floor plan

Question 48

what do sectional drawings give you

Answer 48

information about wall construction and exterior and interior wall finish

Question 49

what drawing shows the structure of the building, including openings for doors and windows

Answer 49

floor drawings