What was the element used in traditional thermometers which is highly toxic in nature?

__________ type of element is normally not used in the bimetallic thermometers.

A

Flat spiral

B

Bourdon tube

C

Single helix

D

Multiple helix

The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.

A

Pressure

B

Volume

C

Viscosity

D

All of the above

Highly toxic gas which causes headache, visual difficulty, paralysis and even death is

A

CO₂

B

O₃

C

CO

D

All of these

Which of the following refrigerant is highly toxic and flammable?

A

Ammonia

B

Carbon dioxide

C

Sulphur dioxide

D

R-12

Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?

A

Mercury in glass thermometer

B

Alcohol in glass thermometer

C

Fused metal (Na or K) in steel thermometer

D

Nitrogen in steel thermometer

Which one of the following thermometers is known as pyrometer?

A

Thermo-electric thermometers

B

Radiation thermometers

C

Gas thermometers

D

Liquid thermometers

Volumetric expansion is the working principle of the __________ thermometers.

A

Mercury in glass

B

Constant volume gas

C

Vapor pressure

D

Bimetallic

Identify the metal which is non toxic in nature.

A

Chromium

B

Gold

C

Cadmium

D

Cobalt

while highly prized for symbolizing good luck the four leaf clover is rarity found in nature.

A

while

B

for

C

the

D

rarity

Identify the sentence in which the word element (s) refers to 'suitable or favourable environment. (1) There is an element of truth in your story. (2) Water is composed of elements of hydrogen and oxygen. (3) I feel out of my elements in political discussions. (4) Water is a natural element for fish

A

(4)

B

(3)

C

(1) and (2)

D

(1)

What was the element used in traditional thermometers which is highly toxic in nature?

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