Everyday Science · Introduction to Everyday Science · page 10 of 13

Important Scientific (96) MCQs with Answers

Includes 15 past paper MCQs (marked).

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Important Scientific Instruments MCQs (91–100)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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91.
Scotograph is an instrument for _?
Correct Answer: A. Adding the blind to write
One-liner
Scotograph is an instrument used for adding the blind to write.
92.
What is a calorimeter primarily used for?
Correct Answer: B. Measuring heat change
One-liner
A calorimeter is primarily used for measuring heat change in chemical reactions or physical processes.
93.
Which instrument is used to measure the density of milk?
Correct Answer: D. Lactometer
One-liner
The instrument used to measure the density (or purity) of milk is called a Lactometer.
94.
Which part of a vehicle helps to check how far it has gone?
Correct Answer: B. Odometer
One-liner
The Odometer is the instrument in a vehicle that measures the distance traveled.
95.
A mass spectrometer measures which of the following characteristics of the molecule?
Correct Answer: A. Mass to charge ratio
One-liner
A mass spectrometer measures the mass to charge ratio (m/z) of molecules.
96.
The centrifuge machine is used for the separation of _?
Correct Answer: A. Mud
One-liner
A centrifuge machine is used for the separation of mud (suspended solid particles) from liquids by spinning at high speed.
97.
A measuring cylinder is used in laboratories for measuring the exact volume of a _?
Correct Answer: D. Liquid
One-liner
A measuring cylinder is used in laboratories for measuring the exact volume of a liquid.
98.
Which apparatus is used in aircraft for measuring altitudes?
Correct Answer: B. Altimeter
One-liner
An altimeter is the instrument used in aircraft to measure altitude (height above a reference point, usually sea level).
99.
Soil salinity is measured by:
Correct Answer: A. Conductivity meter
One-liner
Soil salinity is measured by a conductivity meter, which determines the electrical conductivity of the soil solution.
100.
Past Paper MCQ
Humidity of the atmosphere is measured by an instrument called?
Correct Answer: A. Hygrometer
One-liner
Humidity of the atmosphere is measured by an instrument called a Hygrometer.

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Important Scientific (96) MCQs with Answers

Important Scientific Instruments MCQs (91–100)

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