PINOYBIX Tests and Measurements

 Tests  T ests and Measurem Measurements ents 1. What kind of instrument an ammeter is? A. An indicating •

B. A recording

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C. An integrating

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D. A dc meter

2. As the deection of the moving system increases the contro!!ing tor"ue tor"ue in an indicating instrument. •

A. #emains the same B. Increases

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C. Decreases

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D. Becomes $ero

%. Which is the &est ty'e of meter movement? •

A. (ron)*ave

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B. Dynamometer C. D’ Arsonval

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D. Moving iron

+. Which dynamometer ty'e has uniform sca!e? A. Wattmeter •

B. ,o!tmeter

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C. Ammeter

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D. -hmmeter

. When &oth deecting and contro!!ing tor"ue tor"ue act the 'ointer of an indicating instrument comes to A. Rest •

B. Mid)'osition

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C. Ma/imum 'osition

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D. Three)fourth 'osition

0. The out'ut vo!tage of a thermocou'!e •

A. #emains constant *ith tem'erature

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B. Decreases *ith a''!ied vo!tage C. Increases with temperature

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D. (ncreases *ith a''!ied vo!tage

. An instrument in *hich the magnitude of the measured "uantity is indicated &y means of a 'ointer A. Analog instrument •

B. Digita! instrument

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C. Ammeter

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D. ,o!tmeter

. (f the 'ointer of an indicating instrument is in motion then *hat o''oses deecting tor"ue? •

A. Contro!!ing tor"ue

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B. Dam'ing tor"ue C. Damping and controlling torques

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D. 3rictiona! tor"ue

4. 5o* can e!ectrica! currents &e inducted *ith a coi! and a magnet? •

A. By '!acing the coi! 'ara!!e! to the magnetic 6e!d

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B. By '!acing the coi! at right ang!es *ith the magnetic 6e!d C. By moving either the magnet or the coil

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D. By kee'ing the coi! and the magnet 'erfect!y stationary

17. When shou!d a fuse &e re'!aced *ith a higher rated unit? A. Never •

B. When the origina! va!ue is not avai!a&!e

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C. (f it &!o*s

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D. When fuses of the origina! va!ue are sma!! in si$e

11. The 'ointer of an indicating instrument is genera!!y made of  •

A. Co''er

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B. 8i!ver C. Aluminum

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D. 9o!d

12. The time interva! that a *aveform is high :or !o*; is the