Related Questions

Shaft/rotor speed is most accurately measured by a
A Frequency counter
B Tachometer
C Strobometer
D Speedometer
Dome temperature of blast furnace stove is most accurately measured by a
A Radiation pyrometer
B Platinum-platinum/rhodium ther-mocuple
C Iron-constantan thermocouple
D Platinum resistance thermometer
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
E.m.f. of a Weston cell is accurately measured by
A electrostatic voltmeter
B hot wire voltmeter
C isothermal voltmeter
D electrodynamic voltmeter
If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by
A Throttling calorimeter
B Separating calorimeter
C Combined separating and throttling calorimeter
D Bucket calorimeter
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 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 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 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 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

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