Technology Today and Tomorrow ©2004

Chapter 18: Other Construction Projects


1.	A material commonly used to pave a flexible roadbed is
		A)	slate.
		B)	asphalt.
		C)	reinforced concrete.
		D)	portland cement concrete.


2.	Which type of bridge is most likely to span a long distance?
		A)	beam bridge
		B)	bascule bridge
		C)	cantilever bridge
		D)	suspension bridge


3.	The part of a dam that blocks the flow of water is the
		A)	embankment.
		B)	outlet works.
		C)	spillway.
		D)	lock.


4.	Which part of a dam functions as a safety valve?
		A)	cofferdam
		B)	piles
		C)	spillway
		D)	outlet works


5.	Which part of a dam channels water to a power plant?
		A)	lock
		B)	spillway
		C)	embankment
		D)	outlet works


6.	Air-supported structures are primarily used
		A)	in areas where there are limited building materials.
		B)	for exhibition buildings.
		C)	by the military.
		D)	in mild climates.


7.	Why does an air-supported structure use two sets of doors?
		A)	to improve traffic flow
		B)	to provide a constant flow of air
		C)	to create an air lock to equalize pressure
		D)	to distribute tension evenly through the structure


8.	How are pressure and movement of materials maintained in a pipeline?
		A)	Tremendous pressure is created at the input end.
		B)	Pipeline switchbacks at regular intervals increase pressure.
		C)	Narrower segments periodically restrict flow.
		D)	Above-ground pumping stations apply pressure.


9.	In a navigation canal, this structure enables ships to change elevation.
		A)	lock
		B)	towpath
		C)	embankment
		D)	spillway


10.	What space stations were launched and became operational prior to the 1990s?
		A)	Unity and Zarya
		B)	Alpha and the ISS
		C)	Mir and Skylab
		D)	The ISS and Skylab