Which one of the following pair is NOT correctly matched?
Correct Answer:
(D)
Ammeter: Measuring instrument for electric power
Ammeter is an instrument used to measure the electric current (in ampere) not for measuring electric power. The electric current is defined as the flow of electrons. Its SI unit is ampere. Thus, option (d) is not correctly matched.
Ques:
2
What is measured by manometer?
Correct Answer:
(B)
Pressure of gas
Manometer is an instrument that uses a column of liquid to measure pressure of liquids or gases, commonly referred as pressure measuring instrument.
Ques:
3
Which one of the following is NOT correctly matched –
Correct Answer:
(C)
Tacheometer – Pressure difference
A Tacheometer is a type of theodolite used for rapid measurements and determines, electronically or electro- optically, the distance to target and is highly automated in its operations. The remaining pairs are correctly matched. Pyrometer is a device used for measuring relatively high temperature, such as is encountered in furnaces. Anemometer is a device used for measuring wind speed. An Ammeter is a measuring instrument used to measure electric current in a circuit. Electric current is measured in ampere (A).
Ques:
4
The apparatus used to measure intensity of sound is:
Correct Answer:
(D)
Audiometer
An Audiometer is used to measure the intensity of sound, while Anemometer is used for measuring wind speed and wind pressure. Chronometer is a timepiece or timing device with a special mechanism for ensuring and adjusting its accuracy, for use in determining longitude at sea or for any purpose where very exact measurement of time is required. Audiophone is a type of small hearing aid.
Ques:
5
The thermometer which used to measure 2000oC temperature is –