Level 2 Module 1 Alternating Currents
Questions with 100% Correct Answers
Updated & Verified
2:1 ‘- ‘(correct ‘answer) ‘-What ‘is ‘the ‘step-down ‘turns ‘ratio ‘of ‘a ‘transformer ‘with ‘200 ‘turns ‘in ‘the
‘primary ‘and ‘100 ‘turns ‘in ‘the ‘secondary?
induced ‘high ‘voltage ‘- ‘(correct ‘answer) ‘-Opening ‘the ‘secondary ‘of ‘a ‘CT ‘under ‘load ‘will ‘cause ‘a
‘dangerous ‘level ‘of___.
40Hz ‘- ‘(correct ‘answer) ‘-What ‘is ‘the ‘hertz ‘rating ‘of ‘an ‘AC ‘circuit ‘if ‘the ‘frequency ‘is ‘20 ‘cycles ‘per
‘1/2 ‘second?
340V ‘- ‘(correct ‘answer) ‘-Given: ‘A ‘circuit ‘has ‘an ‘rms ‘voltage ‘of ‘120VAC. ‘What ‘is ‘the ‘peak-to-peak
‘voltage?
175V ‘- ‘(correct ‘answer) ‘-A ‘circuit ‘has ‘a ‘peak ‘voltage ‘of ‘275V. ‘What ‘is ‘the ‘average ‘voltage ‘value?
one-third ‘the ‘applied ‘voltage ‘- ‘(correct ‘answer) ‘-Each ‘of ‘three ‘equal ‘capacitors ‘in ‘series ‘has___.
XL=2piefL ‘- ‘(correct ‘answer) ‘-The ‘formula ‘for ‘inductive ‘reactance ‘is___.
10A ‘- ‘(correct ‘answer) ‘-Given: ‘An ‘AC ‘circuit ‘containing ‘resistance ‘only. ‘What ‘is ‘the ‘current ‘flow ‘if
‘the ‘resistance ‘is ‘15 ‘ohms ‘and ‘the ‘voltage ‘is ‘150v?
Lags ‘the ‘voltage ‘- ‘(correct ‘answer) ‘-The ‘current ‘in ‘inductive ‘circuit___.
Rms ‘values ‘- ‘(correct ‘answer) ‘-Unless ‘otherwise ‘noted, ‘the ‘calculations ‘in ‘AC ‘circuits ‘use___.
Increases ‘- ‘(correct ‘answer) ‘-When ‘frequency ‘decreases, ‘capacitive ‘reactance___.
It ‘leads ‘the ‘voltage. ‘- ‘(correct ‘answer) ‘-Which ‘of ‘the ‘following ‘is ‘true ‘of ‘the ‘current ‘in ‘a ‘capacitive
‘circuit?
0.637 ‘x ‘peak ‘value ‘- ‘(correct ‘answer) ‘-In ‘sine ‘wave ‘terminology, ‘the ‘average ‘value ‘is___.
Questions with 100% Correct Answers
Updated & Verified
2:1 ‘- ‘(correct ‘answer) ‘-What ‘is ‘the ‘step-down ‘turns ‘ratio ‘of ‘a ‘transformer ‘with ‘200 ‘turns ‘in ‘the
‘primary ‘and ‘100 ‘turns ‘in ‘the ‘secondary?
induced ‘high ‘voltage ‘- ‘(correct ‘answer) ‘-Opening ‘the ‘secondary ‘of ‘a ‘CT ‘under ‘load ‘will ‘cause ‘a
‘dangerous ‘level ‘of___.
40Hz ‘- ‘(correct ‘answer) ‘-What ‘is ‘the ‘hertz ‘rating ‘of ‘an ‘AC ‘circuit ‘if ‘the ‘frequency ‘is ‘20 ‘cycles ‘per
‘1/2 ‘second?
340V ‘- ‘(correct ‘answer) ‘-Given: ‘A ‘circuit ‘has ‘an ‘rms ‘voltage ‘of ‘120VAC. ‘What ‘is ‘the ‘peak-to-peak
‘voltage?
175V ‘- ‘(correct ‘answer) ‘-A ‘circuit ‘has ‘a ‘peak ‘voltage ‘of ‘275V. ‘What ‘is ‘the ‘average ‘voltage ‘value?
one-third ‘the ‘applied ‘voltage ‘- ‘(correct ‘answer) ‘-Each ‘of ‘three ‘equal ‘capacitors ‘in ‘series ‘has___.
XL=2piefL ‘- ‘(correct ‘answer) ‘-The ‘formula ‘for ‘inductive ‘reactance ‘is___.
10A ‘- ‘(correct ‘answer) ‘-Given: ‘An ‘AC ‘circuit ‘containing ‘resistance ‘only. ‘What ‘is ‘the ‘current ‘flow ‘if
‘the ‘resistance ‘is ‘15 ‘ohms ‘and ‘the ‘voltage ‘is ‘150v?
Lags ‘the ‘voltage ‘- ‘(correct ‘answer) ‘-The ‘current ‘in ‘inductive ‘circuit___.
Rms ‘values ‘- ‘(correct ‘answer) ‘-Unless ‘otherwise ‘noted, ‘the ‘calculations ‘in ‘AC ‘circuits ‘use___.
Increases ‘- ‘(correct ‘answer) ‘-When ‘frequency ‘decreases, ‘capacitive ‘reactance___.
It ‘leads ‘the ‘voltage. ‘- ‘(correct ‘answer) ‘-Which ‘of ‘the ‘following ‘is ‘true ‘of ‘the ‘current ‘in ‘a ‘capacitive
‘circuit?
0.637 ‘x ‘peak ‘value ‘- ‘(correct ‘answer) ‘-In ‘sine ‘wave ‘terminology, ‘the ‘average ‘value ‘is___.
