1. Austenite is a solid solution of carbon in ________ iron ?

alpha

beta

gamma

delta

Answer: gamma

Explanation:


2. Out of the following which is the amorphous material ?

Lead

Brass

Glass

Silver

Answer: Glass

Explanation:


3. Alloys of magnesium are ?

easy to machine

magnetic

light

prone to corrosion

Answer: light

Explanation:


4. Under microscope pearlite appears as ?

white

light

dark

finger print

Answer: finger print

Explanation:


5. ______ has maximum malleability ?

Aluminium

Copper

Lead

Wrought iron

Answer: Lead

Explanation:


6. A fluid is said to be ideal, if it is ?

incompressible

inviscous

viscous and incompressible

inviscous and incompressible

Answer: inviscous and incompressible

Explanation:


7. Which of the following is dimensionless ?

specific weight

specific volume

specific speed

specific gravity

Answer: specific gravity

Explanation:


8. Surface tension has the units of ?

Newtons/m²

Newtons/mm²

Newtons/m

Newtons

Answer: Newtons/m

Explanation:


9. Alcohol is used as manometers because ?

it has low vapour pressure

it is clearly visible

it has low surface tension

it can provide longer column due to low density

Answer: it can provide longer column due to low density

Explanation:


10. Poise is the unit of ?

surface tension

capillarity

viscosity

shear stress in fluids

Answer: viscosity

Explanation: