SSC CGL 2025 Tier-I · 14 September 2025, Shift 1 · General Intelligence and Reasoning · Question 1 of 100

We transcribed this text from the pictures on a candidate's response sheet for this shift; the answer is the key SSC colour-marked on that sheet. Solution last reviewed 11 September 2026.

Where this paper and its answers come from

SSC does not publish CGL question papers or a public answer key. From 2025 the candidate response sheet prints every question and option as a picture, so the text here is transcribed from those pictures for this shift and checked against them independently; where the layout carries meaning, the picture is shown as well. Each answer is the key SSC colour-marked on that sheet. SSC released a tentative key for challenge and later its final one, both only to candidates behind a login, and the sheet does not say which of the two it carries. The solutions are written by UnlockIAS.

In the following question, select the related word from the given alternatives. Clock : Time :: Thermometer : ?

(a)Pressure
(b)Speed
(c)Temperature
(d)Distance

Answer

Why

Correct — C.
Rule: instrument : the quantity it measures.

A clock measures time.
A thermometer measures temperature.

Thermometer : Temperature repeats Clock : Time → option (c).

Why the others are wrong

(a)
Pressure — Pressure is read on a barometer or a pressure gauge. A thermometer reads how hot or cold something is, which is its temperature.
(b)
Speed — Speed is shown on a speedometer. A thermometer has nothing to do with motion; it reads temperature.
(d)
Distance — Distance travelled is recorded by an odometer. The first pair links an instrument to the quantity it reads, and a thermometer reads temperature.

Concept

An instrument analogy pairs a device with the quantity it reads. Fix the relation from the first pair — device first, quantity second — then ask what the second device reads.

Every option here is a measurable quantity, so the item tests recall: a thermometer reads temperature, a barometer pressure, a speedometer speed and an odometer distance.

Knowing the relation is not enough on its own, because all four options are quantities an instrument could measure. What decides it is matching the thermometer to its own quantity.

Key facts

A thermometer measures temperature.
A barometer measures atmospheric pressure.
A speedometer shows a vehicle's speed and an odometer the distance it has travelled.

Study next

Instruments and what they measure: barometer, hygrometer, anemometer, odometerUnit analogies such as Watt : Power and Pascal : PressureAnalogies that pair a substance with the device it works in, such as Mercury : Thermometer

Common traps

Confusing the thermometer with the barometer and choosing pressure

Here the instrument comes first and the quantity it measures second.

15 Sep 2025, 16:00, Reasoning Q.1 puts the thermometer in the first pair instead: Mercury : Thermometer :: Fuel : ?, keyed Engine.

12 Sep 2025, 09:00, Reasoning Q.1 pairs a unit with its quantity: Watt : Power :: Pascal : ?, keyed Pressure.

Related PYQs

No directly related past PYQ was found.

Topic: Problem Solving — all 74 SSC CGL questions on it, every solved shift.