WASHINGTON – Two former high-ranking executives at JPMorgan Chase faced tough questions from senators Friday about why the bank played down risks and hid losses from regulators when it was losing billions of dollars.

The hearing was held a day after the Senate Permanent Subcommittee on Investigations issued a scathing report that ascribed widespread blame for $6.2 billion in trading losses to key executives at the firm.

Douglas Braunstein, the former chief financial officer, and Ina Drew, the former chief investment officer overseeing trading strategy, were pressed to explain why bank executives gave federal examiners in April information that understated losses for the first quarter of 2012.