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4

Shampoos are commercially not available in the form of

A. Powder

B. Gaseous mixture

C. Solution

D. Emulsion

Correct Answer :

B. Gaseous mixture


Related Questions

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4

With increase in temperature, the electrical conductivity of a __________ decreases.

A. Semi-conductor

B. Metal or alloy

C. Dielectric

D. None of these

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4

Which of the following is not an ore of copper?

A. Cryolite

B. Azurite

C. Chalcopyrite

D. Malachite

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4

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

A. °C

B. °F

C. °K

D. °R

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4

Which of the following is not used as a bearing material?

A. Copper-lead alloys

B. Babbitts

C. Bronzes

D. Cermets

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4

The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.

A. 768

B. 1127

C. 1359

D. 1480

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4

Unit of surface tension in S.I. unit is

A. Watt/m

B. Joule/

C. Newton/

D. Joule/m

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4

The lightest non-inflammable gas is

A. H2

B. He

C. Ar

D. O2

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4

__________ joint is mostly used for joining pipes carrying water at low pressure.

A. Nipple

B. Socket

C. Union

D. Bell and spigot

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4

Minimum thermal efficiency of a steam boiler may be around __________ percent

A. 25

B. 45

C. 65

D. 20

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4

Ammonia leakage in the refrigeration system is detected by

A. Sulphur stick, which on detection gives white smoke

B. Using chemical reagents

C. Its smell

D. Soap solution

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4

Which of the following is resistant to the action of both heat & chemicals?

A. Borosilicate glass

B. Silica glass

C. Soda lime glass

D. None of these

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4

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

A. Collar

B. Flanged

C. Bell and Spigot

D. Expansion

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4

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

A. Copper

B. Steel

C. Aluminium

D. Brass

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4

Dielectric

A. Is an electrical insulating material

B. Of low resistivity is preferred

C. Should have high thermal conductivity

D. Need not defy the corrosive action of chemicals

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4

Name the safety device used to protect the boiler, when the water level falls below a minimum level.

A. Blow down valve

B. Blow off cock

C. Fusible plug

D. Safety valve

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4

A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

A. 370

B. 340

C. 320

D. 300

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4

A solar cell converts the sunlight directly into __________ energy.

A. Thermal

B. Electrical

C. Mechanical

D. Chemical

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4

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

A. 3

B. 7

C. 11

D. 15

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4

__________ is used as a material of construction for the blade of power saw.

A. Wrought iron

B. Stainless steel

C. Mild steel

D. High speed steel

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4

Hot working of lead is carried out at

A. 75°C

B. 373°K

C. 150°C

D. Room temperature

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4

Temper brittleness of a material can be fairly detected by the __________ test.

A. Fatigue

B. Notched bar impact

C. Tensile

D. Hardness

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4

Age hardening is connected with

A. Babbitt metal

B. Gun metal

C. Stainless steel

D. Duralumin

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4

Methyl orange indicator turns

A. Orange yellow in alkaline medium

B. Orange yellow in acidic medium

C. Colourless in acidic medium

D. Colourless in basic medium

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4

The joint for soldering is supported by binding wire made of

A. Mild steel

B. Copper

C. Soft iron

D. Stainless steel

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4

The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the

A. Final control element

B. On-off control

C. Floating control action

D. None of these

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4

Percentage of argon (by volume) in dry atmospheric air is about

A. 0.09

B. 0.3

C. 0.57

D. 0.94

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4

Angular displacement can be measured suitably by a

A. Shaft encoder

B. Linear variable differential transducer (LVDT)

C. Stroboscope

D. Tachometer

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4

The co-ordination number in simple cubic structure is

A. 4

B. 6

C. 8

D. 12

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4

Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

A. Very low which prevents their ignition by compression

B. Very high which prevents their ignition by compression

C. Zero

D. None of these

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4

Cassiterite is an ore of

A. Tin

B. Lead

C. Molybdenum

D. Chromium