Student safety 2011 5th edition - Pt 3, Pg 14-19

Question 1

What are the 3 hard hat classes?

Pg 14

Answer 1

Class C, E, G

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Question 2

What do the 3 hard hat classes do?

Pg 14

Answer 2

The 3 classes are for protection level from electrical hazards.

1. Class G (General) hard hats are for 2,200 volts.
2. Class E (Electrical) hard hats are for 20,000 volts.
3. Class C (Conductive) hard hats have no electrical protection.

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Question 3

What can a dust mask/respirator protect us from?

Pg 15

Answer 3

Dust mask/respirators help control dust and fumes in construction sites that can damage a respiratory tract.

Question 4

Some industries ask employees to do what for respirators to make a good seal?

Pg 15

Answer 4

Employees must be clean-shaven to wear respirators.

Question 5

What are voltage-rated gloves?

Pg 15

Answer 5

Voltage-rated gloves are thick, non-conductive for work near live equipment.

Question 6

When must be voltage-rated gloves be retested?

Pg 15

Answer 6

The gloves are rated at max voltage and must be retested each 90 days.

Question 7

What to do with voltage-rated gloves if finished using?

Pg 15

Answer 7

They must be rolled from the open end to be inflated.

Question 8

What are voltage-rated gloves covered with?

Pg 15

Answer 8

Voltage-rated gloves are covered with leather canvas gloves called protectors.

Question 9

What must safety footwear have on its soles?

Pg 15

Answer 9

Soles must have a plate stopping sharp objects.

Question 10

What are safety footwear that stop sharp objects identified with?

Pg 15

Answer 10

Safety footwear stopping sharp objects have CSA green triangle.

Question 11

What are safety footwear that stop shocks identified with?

Pg 15

Answer 11

Safety footwear that stop shocks have a white triangle.

Question 12

How many levels of arc flash protective clothing does the NFPA standard referenced by Canadian Electrical Codes defines?

Pg 16

Answer 12

6 levels of arc flash protective clothing from -1 to 4

Question 13

What are arc flash protective clothing levels for?

Pg 16

Answer 13

higher heat exposure

Question 14

If a task exposes a worker to minimal arc fault energy, what level of clothing is needed?

Pg 16

Answer 14

lvl 0 cloth is for a worker exposed minimal arc fault energy

Question 15

What’s lvl 0 clothing comprised of?

Pg 16

Answer 15

lvl 0 =
* long sleeve shirt
* long pants
* safety glass

Question 16

What must lvl 0 pants and shirt be made of?
Name an example

Pg 16

Answer 16

Lvl 0 pants and shirt must be made of non-melting material.
Like otton denim-flammable but doesn’t melt.

Question 17

Nylon, polyester and similar fabrics will what in heat…?

Pg 16

Answer 17

They melt in heat.

Question 18

Lvl 4 clothing consists of…?

Pg 16

Answer 18

Lvl 4 clothing consists of a full suit of thick, flame retardant cloth.

Question 19

What’s the disavantage of lvl 4 clothes?

Pg 16

Answer 19

They’re heavy and hot.

Question 20

What are lockout and tagouts (LOTO)?

Pg 17

Answer 20

LOTO is a safety procedure to secure machinery from hazardous energy sources (e.g. electricity).

Question 21

Lockout and tagout procedures ensure what?

Pg 17

Answer 21

LOTO procedures ensure equipment and circuits are safe to work on.

Question 22

How are LOTO procedures done?

Pg 17

Answer 22

by physically locking an energy isolating device with tag attached to show a tool isn’t operated til the lockout is removed.

Question 23

What are the types of control procedures?

Pg 17

Answer 23

1. Individual control
2. Simple lockout/tagout
3. Complex lockout/tagout

Question 24

What’s the simplest type of control procedure?

Pg 17

Answer 24

Individual control is the simplest form of control.

Question 25

Pg 17

Question 26

One small crew must work on a circuit at…?

Pg 17

Answer 26

One small crew must work on a circuit at a single shift.

Question 27

What must someone be able to do in individual control?

Pg 17

Answer 27

They must see the equipment, the disconnecting means and control access to be effective.

Question 28

What’s often used if no LOTO procedures are there?

Pg 17

Answer 28

Individual control is often used if no LOTO are present.

Question 29

What type of control procedure can be used for one crew works on a project?

Pg 17

Answer 29

Simple Lockout/Tagout procedures can be used if one crew works on a project.

Question 30

What control procedure is used if:
* many crews and energy sources
* many locations
* many crafts
* many disconnection issues
* complex sequences

Pg 17

Answer 30

Complex Lockout/Tagout is used if many crews and energy sources are present.

Question 31

Lockout preparations involve reviewing drawings, equipment labels and you must be able to answer:
* Where the disconnecting means for all energy sources?
* What’s needed to lock them out?
* What must be done to deal with energy stored in capacitors, air tanks, etc?
* What equipment is needed to test circuits are dead?

Pg 18

Answer 31

• Where the disconnecting means for all energy sources?
• What’s needed to lock them out?
• What must be done to deal with energy stored in capacitors, air tanks, etc?
• What equipment is needed to test circuits are dead?

Question 32

pg 18

Question 33

Pg 18