Question 1

Impalement

Accepted Answer

Failure to protect employees from _____ hazards is one of the top four most frequently cited concrete and masonry violations

Question 2

True

Accepted Answer

Subpart Q regulations apply to workplaces covered under Part 1926 with hazards associated with concrete and masonry construction

Question 3

Failure to brace unsupported sections of masonry wall over 2' in height

Accepted Answer

Which of the following is not one of the most frequently cited serious violations of the concrete and masonry construction standards?

Question 4

Limited access zone

Accepted Answer

An area alongside a masonry wall that is under construction and clearly demarcated to limit access by employees is called a

Question 5

must not

Accepted Answer

An employer ______ place a construction load on a concrete structure unless the employer determines that the structure is capable of supporting the loads

Question 6

Buckets should be routed away from employees : Concrete bucketsEmployees must provide barriers to limit access to tensioning operations : Post-tensioning operationsEmployers must restrict work under concrete buckets while they are being elevated or lowered : Work under loadsProtruding reinforced steel must be guarded : Reinforced steel

Accepted Answer

Match the following definitions to their related terms

Question 7

False

Accepted Answer

Not all protruding reinforced steel must be guarded

Question 8

True

Accepted Answer

Signs and barriers must be erected to limit employee access to the post-tensioning area during tensioning operations

Question 9

employer, qualified

Accepted Answer

Construction loads must not be placed on a concrete structure unless the ______ determines, based on information received from a person who is _____ in structural design, that the structure is capable of supporting the loads

Question 10

False

Accepted Answer

Employees are permitted to apply a cement, sand, and water mixture through a pneumatic hose without wearing protective head and face equipment

Question 11

True

Accepted Answer

Bulk storage bins, containers, and silos must be equipped with conical or tapered bottoms, and mechanical or pneumatic means of starting the flow of material

Question 12

Compressed air hoses

Accepted Answer

______ used on concrete pumping systems must include positive fail-safe joint connectors to prevent the separation of sections when pressurized

Question 13

Handles on these must not extend beyond the wheels on either side of the buggy : Concrete buggiesMust be equipped with control switch to automatically shut off power when hands are removed from handles : Power concrete trowelsWhen equipped with hydraulic or pneumatic gates, these must have postitive safety latches to prevent accidental dumping : Concrete buckets Discharged pipes on these must be provided with pipe supports designed for 100% : Concrete pumping systems

Accepted Answer

Match each of the following to the correct type of concrete equipment

Question 14

True

Accepted Answer

All equipment must be locked and tagged out at starting points before maintenance or repair can be performed

Question 15

Both A and B

Accepted Answer

Concrete mixers with one cubic yard or larger loading skips must be equipped with which of the following?

Question 16

False

Accepted Answer

Sections of tremies and similar concrete conveyances must be secured with twine in addition to the regular couplings or connections

Question 17

All of the above

Accepted Answer

Which of the following does OSHA require of formwork so that it is capable of supporting all vertical and lateral loads applied to the formwork without failure

Question 18

False

Accepted Answer

While it is a good practice, vertical slip forms do not have to be designed to prevent excessive distortion of the structure during the jacking operation

Question 19

Formwork

Accepted Answer

Which of the following is the total system of support for freshly placed or partially cured concrete, including the mold or sheeting (form) that is in contact with the concrete, as well as all supporting members, including shores, reshores, hardward, braces, and related hardware?

Question 20

True

Accepted Answer

Drawings and plans, including all revisions for the jack layout, formwork, working decks, and scaffolds, must be available at the jobsite.

Question 21

All of the above

Accepted Answer

If single-post shores are used one on top of another, when which of the following additional shoring requirements must be met?

Question 22

All of the above

Accepted Answer

Which of the following does OSHA require adequate support for?

Question 23

Must be capable of supporting at least five times the maximum intended load transmitted to the lifting : Lifting hardwareMust prohibit employees from being permitted under precast concrete members being lifted or tilted into position : EmployersMust be capable of supporting at least two times the maximum intended load applied or transmitted to them : Lifting insertsMust be capable of supporting at least four times the maximum load appled to transmitted to them : Embedded inserts

Accepted Answer

Match the following standards to the correct terms

Question 24

2

Accepted Answer

Lifting inserts that are embedded or otherwise attached to tilt-up precast concrete members must be capable of supporting at least _____ times the maximum intended load applied or transmitted to them

Question 25

5

Accepted Answer

Lifting hardware must be capable of supporting at least ____ times the maximum intended load applied transmitted to the lifting hardware

Question 26

True

Accepted Answer

No employee must be permitted under precast concrete members being lifted or tilted into position except those employees required for the erection of those members.

Question 27

Registered professional engineer

Accepted Answer

Lift-slab operations must be designed and planned by a _____ who has experience in lift-slab construction

Question 28

1/2

Accepted Answer

During lifting, all points at which the slab is supported must be kept within ____ inch of that needed to maintain the slab in a level position

Question 29

Manufacturer

Accepted Answer

Jack/lifting units must be marked to indicate their rated capacity as established by the _____

Question 30

Limited Access Zone

Accepted Answer

Whenever a masonry wall is being constructued, employers must establish a _____ prior to the start of construction

Question 31

8

Accepted Answer

Masonry walls must be braced when they are taller than _____ feet

Question 32

True

Accepted Answer

Whenever a masonry wall is being constructed, employers must establish a limited access zone prior to the start of construction

Question 33

All of the above

Accepted Answer

Which of the following are practices that will help prevent struck by hazards

Question 34

True

Accepted Answer

When employees are working at any height above an exposed rebar, fall protection/prevention is the first line of defense against impalement

Question 35

False

Accepted Answer

Older machiney does not need to be retrofitted with guarding devices

Question 36

True

Accepted Answer

The most deadly hazard associated with masonry walls in construction is the collapse of the walls and/or panels

Question 37

True

Accepted Answer

Sicilica exposure in the form of dust particles is only harmful if the worker is exposed to it for long periods of time

Question 38

True

Accepted Answer

Employers must not placed construction loads on concrete structures or portions of concrete structures unless a qualified person detemines that the structure or portion of the structure is capable of supporting the loads

Question 39

Employer

Accepted Answer

Which of the following determines when formwork can be removed from cast-in-place concrete?

Question 40

4

Accepted Answer

Lifting inserts which are embedded or otherwise attached to precast concrete members, other than the tilt-up members, shall be capable of supporting at least ______ times the maximum intended load applied or transmieed to them

Question 41

True

Accepted Answer

Concrete mixers with greater than 1 cubic yard capacity must have guardrails on each side of the skip.

Question 42

Head and face equipment

Accepted Answer

According to Subpart Q, which of the following personal protective equipment is required when an employee applies a cement/sand/water mixture through a hose?

Question 43

True

Accepted Answer

A masonry saw must be guarded with a semicircular enclosure over the blade

Question 44

All of the above

Accepted Answer

The limited access zone of a masonry wall must be which of the following?

Question 45

True

Accepted Answer

Support for precast concrete can be removed when permanent connections are completed

Question 46

True

Accepted Answer

Silicia exposure in the form of dust particles is only harmful if the worker is exposed to it for long periods of time

Question 47

Behind

Accepted Answer

Employees should not be _____ the jack during tensioning operations

Quiz 16 Concrete And Masonry

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