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271.

A road sign is generally installed above the ground at a height of

A.	2.75 m to 2.80 m	B.	2.95 m to 3.00 m
C.	3.15 m to 3.5 m	D.	more than 3.5 m

272.

The maximum number of vehicles can be parked with

A.	parallel parking	B.	right angle parking
C.	45? angle parking	D.	75? angle parking

273.

The colour of light used for visibility during fog is

A.	red	B.	yellow
C.	green	D.	white

274.

The length of the side of warning sign boards of roads is

A.	30 cm	B.	45 cm
C.	60 cm	D.	75 cm

275.

The most efficient traffic signal system is

A.	simultaneous system	B.	alternate system
C.	flexible progressive system	D.	simple progressive system