( Candidates ( ( should ( be ( able ( to ( calculate ( ( ( ( ( ( ( the ( dc ( power input ) ) ) , ) ( rf ( power output ) ) ) , ) efficiency ) and ) ( dissipation ( of ( a ( pa stage ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Candidates)) (VP (MD should) (VP (VB be) (ADJP (JJ able) (S (VP (TO to) (VP (VB calculate) (NP (NP (DT the) (NN dc) (NN power) (NN input)) (, ,) (NP (NN rf) (NN power) (NN output)) (, ,) (NP (NN efficiency)) (CC and) (NP (NP (NN dissipation)) (PP (IN of) (NP (DT a) (NN pa) (NN stage))))))))))) (. .)))
Candidates should be able to calculate the dc power input, rf power output, efficiency and dissipation of a pa stage.
(ROOT (S (NP (NNP Efficiency)) (VP (VBZ equals) (NP (NP (DT the) (NN output) (NN power)) (VP (VBN divided) (PP (IN by) (NP (DT the) (NN input) (NN power)))))) (. .)))