B. Ammonium hydroxide

C. Ammonium carbonate

D. Sodium hydroxide

A. Bronzes

B. Copper-lead alloys

D. Babbitts

A. Dry air

C. Pure oxygen

D. Sunlight

A. Binder

B. Protective layer

D. Flux

A. In the atomic form

B. In the ionic form

D. In the molecular form

A. y = k1 t + k2

B. y = k1 ln (k2t + k3)

D. y = k1t3 + k2

A. Cementite

C. Spheroids

D. Nodular aggregates of graphite

A. 5

B. 35

D. 10

A. Machining properties

C. Ductility

D. Resilience

B. Above the yield point

C. At the elastic limit

D. Below the elastic limit

B. Sulphur

C. Phosphorous

D. Lead

B. 1.3

C. 2.3

D. 1

B. Wet bulb

C. Dry bulb

D. None of these

B. Spherical inclusion

C. Pores

D. Surface roughness

A. 300

C. 400

D. 150

B. Aluminium

C. Zinc

D. Copper

B. Duralumin

C. White metal

D. Gun metal

B. Frequency counter

C. Speedometer

D. Tachometer

A. Dry bulb temperature

B. Specific humidity

D. Relative humidity

A. 13 and 55

C. 10 and 50

D. 7 and 30

A. Saturation temperature=dew point temperature

C. Wet bulb temperature=dry bulb temperature

D. Wet bulb temperature=dew point temperature

A. A soft magnetic material should have high permeability and small area of hysteresis loop

C. Solders generally melt at less than 185C

D. Steel produced by B.O.F process is ideally suited for manufacturing flat product

B. Painted steel

C. Case hardened steel

D. Lead lined reactor

B. Aluminium

C. Cloth

D. Paper

A. 10.5 to 15.5

B. 7.5 to 8.5

C. 1.2 to 2.5

A. Copper

C. Aluminium

D. Brass

A. Viscosity

B. Thermal diffusivity

D. Thermal conductivity

A. Made of glass fibre and thermoplastic resins

B. Anisotropic

C. Made of thermosetting resin and glass fibre

A. Insulator for heat & electricity transmission

B. Superconductor

D. Ferritic

A. Spark plug

B. Otto cycle

D. Carburettor

A. Shear stress is zero

B. Density variation is maximum

C. Velocity gradient is flat

A. Period increases

B. Period decreases

C. Group increases

A. Product of coal tar distillation

B. None of these

C. Very heat sensitive material

A. Made by sand casting

C. Welded steel cylinders

D. Heat treated before use

B. None of these

C. Fatigue

D. Impact

B. Remain constant

C. Increases linearly

D. Increases

A. ?-rays

B. Electrons

C. ?-rays

A. Cotton, silk and paper

B. All refractory materials

D. Asbestos, glass, porcelain and mica

A. Briquetting

B. Nodulising

C. Pelletising

B. Flux density

C. Magnetic moment

D. Magnetic susceptibility

A. 20-25

B. 0.3-0.4

D. 14-Dec

A. Ar

B. He

D. C

A. Three

B. One

D. None of these

A. May increase or decrease (depends on the suction pressure)

B. Remain same

C. Decreases

B. 1147

C. 959

D. 1493

B. Refine the structure

C. Remove strains caused by cold working

D. Improve machinability & tensile strength

A. Killed

B. None of these

C. Rimming

B. Refine the structure

C. Improve machinability & tensile strength

D. Remove strains caused by cold working

B. Neutral

C. Ideal

D. Zero pH

A. Convection heat transfer by stirring the fluid and cleaning the heating surface

B. Conduction heat transfer by reduction in the material thickness and increase in the thermal

C. None of these

D. ductivity