Test and Measurements

71. What is the smallest change in applied stimulus that will indicate a detectable change in deflection in a indicating instrument called?

1. Sensitivity
2. Accuracy
3. Resolution
4. Precision

View answer

72. What is the typical full-scale deflection current of a moving coil instrument?

1. 50mA
2. 50nA
3. 50μA
4. 50A

View answer

73. What is the typical full-scale voltage across a moving coil voltmeter?

1. 50nV
2. 50μV
3. 50V
4. 50mV

View answer

74. What is the typical power range of thermocouple sensors

1. 0.1mW to 100W
2. 0.lμW to l00mW
3. 0.1nW to 100μW
4. 0.1pW to 100nW

View answer

75. What is used for measuring medium Q coils (1<Q<10)?

1. Maxwell bridge
2. Wheatstone bridge
3. Kelvin bridge
4. Hay bridge

View answer

76. What king of instrument an ammeter is?

1. An indicating
2. A recording
3. An integrating
4. A dc meter

View answer

77. What meter is the most sensitive?

1. 10 ma
2. 1 ma
3. 1A
4. l μA

View answer

78. What provides a visual presentation of ant waveform applied to the input terminals?

1. Cathode ray oscilloscope (CRO)
2. Cathode ray tube (CRT)
3. Spectrum analyzer
4. VTVMs

View answer

79. What provides visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope?

1. Television
2. Computer
3. Meter face
4. CRT

View answer

80. What refers to garaging two adjustments of an AC bridge together in such a way that changing one adjustment changes the other in a special way, but changing the second adjustment does not change the first?

1. Logarithmic nulling
2. Orthogonal nulling
3. Exponential nulling
4. Linear nulling

View answer