The Arlington County Board yesterday turned aside a Rosslyn restauratuer's request to reconsider its approval of three high-rise buildings that will block his restaurant's panoramic view of Washington.

Alexander Inglese, owner of Alexander's Three Penthouse Restaurant, in a loud voice quaking with anger, pounded the lecturn and told the board that his business might be ruined if three high-riser buildings including the 29-story Arland Towers complexare constructed as previously approved by the board.

"You have approved buildings that have abused the height limits," said Inglese, whose diners currently enjoy a sweeping view of the Washington and Lincoln Memorials, the Capitol, the Kennedy Center and the Watergate.

County officials gave Inglese detailed written answers to four pages of questions he submitted earlier that included an explanation of the way the three buildings were approved.

Because all three buildings exceed existing height and density limits for Rosslyn, they recelived special approval by the County Board. County officials noted that, in accordance with existing law, waivers can be granted if the county receives additional concessions in the form of park and street improvements and lighting from a developer.

"Mr. Inglese's problem is private, but I'm sympathetic," Charles Antherton, secretary to the federal Commission of Fine Arts told the board. "The commission is concerned about increases in height taking place in Rosslyn. . .(and the effect) on the special relation to the topography of the hills framing Washington."

"I don't see where this getting us," said County Board Chairman John W. Purdy angrily when Inglese persisted in asking questions that officials said they had already answered. "Your questions have been answered."

In other action the board yesterday cut the county's business license tax for retail merchants and restaurants. The reduction will cost the county about $400,000 in revenue and was planned last May when the budget was approved.

The cut represents 17 percent decrease for merchants and a 10 percent cut for restaurants. "This is a way to provide relief to some businesses and to stimulate business efforts in Arlington," said county fiscal analysis aide Anton S. Gardner.

The board also passed a law that fines banks, businesses and residents $25 for each false burglar alarm that results in a response by police.

Three or more false alarms within a six-month period could result in a $100 fine and disconnection from the police department alarm board, if authorizes by the chief of police. Reconnection would cost $500 under the new law.

The alarm law, the first in Northern Virginia, was opposed by banks who sent letters saying that the alarms have a deterrent effect on burglaries. However, police and county officials said that nearly all the alarms received last year were false, many triggered by careless bank employes.

Under the new law false alarms triggered by unusually severe weather conditions would be exempt from fines.

Earlier, after an often emotional five-hour public hearing the board rejected a proposal by the nonprofit Arlington Housing Corp. to build a 32-unit low and moderate-cost town house development on N. Underwood Street near East Falls Church.

The four-acre site is currently occupied by the Stewart School, which was closed in 1972 because of declining enrollment. A group of about 60 residents in the area of $75,000 homes packed the board room to protest the housing proposal, which would have offered three-bedroom town houses for $50,000 to families of four with annual incomes of $11,000 to $18,000.

Many of the 30 people who spoke against the plan said their neighborhoos was cluttered by Metro and I-33 construction. "The issue is trees." Janet H. Sasser said. "Arlington must perserve its remaining parkland no matter wherer it exist."

Several other residents saw the issue differently. "I'm a farm boy and I worked my way up from nothing and got a home," said William Harkay, who warned the board of the danger of "attracting all kiinds of people who don't want to work for a living. People from Washington. . . cancome in."

Arlington Education Association director Marjorie Sale reminded the board that many county employes, including half of Arlington's 1,000 teachers, would qualify for the housing and urged approval of the housing.

Board member Joseph S. Wholey and Vice Chairman Ellen M. Bozman supported the proposal. Board Chairman Purdy and board members Dorothy T. Grotos and Walter L. Frankland Jr. voted against it.