A Dart gun is used _______?

A. For tranquillizing and trapping big animals

How does differential thermal analysis (DTA) differ from differential scanning calorimetry (DSC)?

A. DTA measures changes in temperature while DSC measures changes in heat flow

B. DTA measures changes in heat flow while DSC measures changes in temperature

C. Both DTA and DSC measure changes in temperature only

D. Both DTA and DSC measure changes in heat flow only

Why is it important to calibrate analytical instruments regularly?

A. To ensure accurate measurements

B. To increase the instrument's weight

C. To reduce electricity consumption

D. To change the instrument's color

Everyday Science · page 3 of 3

Scientific Instruments MCQs with Answers for FPSC, PPSC, NTS and all One Paper Exams — page 3

Scientific instruments MCQs (barometer, hydrometer, seismograph, thermometer) are pure matching. They are short, frequent, and easy to lose if you skip the list.

Practice Scientific Instruments in the app All Everyday Science MCQs by topic

Scientific Instruments MCQs (21–30)

10 questions on this page, with a one-liner under each answer. Hide answers to attempt; questions you already answered stay revealed. This is a sample of 30 Scientific Instruments MCQs — the full Everyday Science bank is in the study app.

Answers and one-liners are hidden. Tap an option to check that question, or show all.

21.
A student consistently reports 0.2 ml less than the actual value. This is an example of?
Correct Answer: B
One-liner
A consistent deviation in the same direction from the true value is called a systematic error.
22.
A Dart gun is used _______?
Correct Answer: A
One-liner
A Dart gun is used for tranquillizing and trapping big animals.
23.
How does differential thermal analysis (DTA) differ from differential scanning calorimetry (DSC)?
Correct Answer: A
One-liner
DTA measures changes in temperature, while DSC measures changes in heat flow.
24.
Which term is defined as the measure of an instrument by which it is error-free?
Correct Answer: B
One-liner
The measure of an instrument by which it is error-free is called Accuracy.
25.
______ is a technique used to determine the concentration of colored compounds in solution.
Correct Answer: B
One-liner
Colorimetry is a technique used to determine the concentration of colored compounds in solution by measuring the intensity of color.
26.
What is the size of a porcelain filter?
Correct Answer: D
One-liner
The pore size of a porcelain filter is approximately 2.5 micrometres, so "None of these" is the correct answer.
27.
What type of sample cuvette should be used for measuring the absorbance of a molecule at 220 nm?
Correct Answer: B
One-liner
A quartz cuvette should be used for measuring absorbance at 220 nm because quartz is transparent to UV light, unlike glass or plastic which absorb in this region.
28.
What is the unit of Rf in chromatography?
Correct Answer: C
One-liner
The Rf (Retention Factor) in chromatography is a ratio of two distances and therefore has no unit.
29.
Why is it important to calibrate analytical instruments regularly?
Correct Answer: A
One-liner
Regular calibration of analytical instruments is essential to ensure accurate measurements by correcting any drift or deviation in readings over time.
30.
______ is the process of measuring the loss of intensity of transmitted light due to the scattering effect of particles suspended in it.
Correct Answer: A
One-liner
Turbidimetry is the process of measuring the loss of intensity of transmitted light due to the scattering effect of particles suspended in a liquid.

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Scientific Instruments MCQs — common questions

Are these Scientific Instruments MCQs with answers?

Yes. Each question on this page can be attempted here. The correct option and a one-liner are in the HTML. This is a sample set of 30 Scientific Instruments MCQs across 3 pages. The full Everyday Science bank is in the study app.

Are Scientific Instruments MCQs asked in FPSC, PPSC, NTS and all One Paper Exams?

Yes. Scientific Instruments is part of the Everyday Science portion of most Pakistani one-paper job tests. Weighting still depends on the advertisement — use the official syllabus for your post.

Are these past paper Scientific Instruments MCQs?

Where a question came from a previously asked paper, it carries a Past Paper MCQ badge. The rest are general practice from the same topic. The study app lets you drill past papers on their own.

How should I practise Scientific Instruments MCQs?

Hide answers and attempt the samples on this page first. Then open Everyday Science in the study app and drill this area until your correction rate rises. Mix a full paper only after the topic is stable.

Scientific Instruments MCQs with Answers for FPSC, PPSC, NTS and all One Paper Exams — page 3

Scientific Instruments MCQs (21–30)

Scientific Instruments MCQs — common questions

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