Science
Bridge Basics
Railroad
VSIR
Utilities
100

This is the chemical symbol for water

H2O

100

This takes place at least 2 weeks prior to pouring a concrete bridge deck

Pre-Placement Meeting

100

For railroad crossing, what should be done with plow blades?

The blade should be lifted.

100

This recorded precipitation measurement within 24 hours requires a post storm review.

0.25”

100

What is the meaning of the acronym AVR?

Alleged Violation Report

200

Newton is famous for this law of motion

Universal Gravitation

200

This material is referenced in Pub 408 Sec 704

Cement Concrete

200

How close can you work to railroad tracks from the sides?

25' from the Centerline

200

This is the allowable duration of paused earthwork operations before temporary stabilization measures are necessary

4 days

200

True or False

It is required that an inspector complete the Utility Section of the PSA for all utility companies performing work within project limits

True

300

The study of life is known as this

Biology

300

The maximum spacing allowed for rebar chairs on a structure

3 Feet

300

Best method to protect rails when construction work is taking place?

Having a Railroad Flagman

300

All VSIR projects require this to be placed in a centralized area free of cover

Rain gauge

300

What is the PennDOT form number for the 'Utility Clearance' form?

D-419

400

This planet is known as the Red Planet

Mars

400

The minimum amount of time a bridge deck must be under wet cure

14 days

400

How long do crossing replacements typically take?

4-5 days

400

This BMP is commonly used in unstabilized vegetated swales during construction to filter sediment from the water flow

Rock Dams

400

True or False

Pub 408 states that utility meeting minutes must be provided to the Department and Utility representatives for their review no later than 14 calendar days after the meeting. 

False

7 days

500

Einstein is renowned for this theory

Theory of Relativity

500

The allowable evaporation rate when pouring a bridge deck

0.06 LB/SF/HR

500

What is the best practice when paving near a railroad track?

Pave up to where it meets the railroad paving joint

500

This BMP is commonly used to designate and protect wetland areas on a construction site.

Protective Fencing

500

Which type of utility work involves phasing with specific construction operations and includes the number of calendar days required to complete after a specific construction operation?

Coordinated

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