Which one of the following statements most accurately reflects the nature of ac power?

Which one of the following statements most accurately describes the nature of inductive reactance?

A

Inductive reactance is an opposition to current flow in dc circuits

B

Inductive reactance is an opposition to current flow in ac circuits

C

Inductive reactance is another term for counter emf

D

Inductive reactance is a force that tends to overcome the effects of counter emf

E

None of the above

Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

A

The voltage remains at one polarity and at a steady level

B

The voltage remains at one polarity but changes value periodically

C

The voltage causes current to flow in two directions at the same time

D

The voltage reverses polarity periodically

E

None of the above

Which one of the following statements most accurately applies to the frequency of a waveform?

A

The actual frequency of a sine waveform is 1.41 times the working frequency

B

Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz

C

The higher the amplitude of a waveform, the higher its frequency

D

The longer the period of a waveform, the lower its frequency

E

None of the above

Which of the following statements most accurately defines human resource management?

A

Human resource management contributes to business strategy and plays an important role in the implementation of business strategy

B

Human resource management is an approach to managing people

C

Human resource management seeks to achieve competitive advantage through the strategic deployment of a highly committed and capable workforce, using an integrated array of cultural, structural and per

D

Human. Resource management focuses on people as the source of competitive advantage

Which one of the following keys is most often used to align columns of text accurately?

A

Border

B

Tab

C

Enter

D

Space

Which one of the following phrases most accurately describes a purely inductive circuit?

A

Resistances provide the only opposition to current flow

B

Inductive reactance provides the only opposition to current flow

C

Combinations of resistance and inductive reactance provide any opposition to current flow

D

The ac voltage lags the current by 90 degree

E

None of the above

Which one of the following phrases most accurately describes a purely capacitive circuit?

A

Resistances provide the only opposition to current flow

B

Capacitive reactance provides the only opposition to current flow

C

The ac voltage leads the current by 90 degree

D

Combinations of resistance and capacitive reactance provide any opposition to current flow

E

None of the above

Which of the following most accurately completes the sentence? “A claim is a statement that is----.”

A

TRUE

B

either true or false, but not both

C

false

D

claiming to be truth

Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

A

Bond's crushing law

B

Kick's law

C

Rittinger's law

D

None of these

Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is

A

Water

B

Carbon tetrachloride

C

Paraffin

D

Ethylene glycol

Which one of the following statements most accurately reflects the nature of ac power?

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