The life of a ball bearing is inversely proportional to________________?
(A) (Load)1
(B) (Load)2
(C) (Load)3
(D) (Load)0.33
Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium_______________?
(A) Nitrate
(B) Sulphate
(C) Carbonate
(D) Chloride
Joule-Thomson co-efficient is the ratio of________________?
(A) Pressure change to temperature change occuring during adiabatic compression of a gas
(B) Pressure change to temperature change occuring during adiabatic throttling of a gas
(C) Temperature change to pressure change occuring during adiabatic compression of a gas
(D) Temperature change to pressure change occuring during adiabatic throttling of a gas
Which of the following material handling equipments is not suitable for moving materials in varying paths ?
(A) Hand trolley
(B) Belt conveyor
(C) Crane
(D) Truck
Pick out the wrong statement ?
(A) Molecules with symmetrical arrangements (e.g. CH4 or CCl4) are non-polar
(B) Generally, non-polar compounds are chemically inactive, conduct electricity poorly and do not ionise
(C) Most of the hydrocarbons are non-polar
(D) None of these
_________________ property of a material is determined by the Herbert Pendulum device?
(A) Hardness
(B) Tensile
(C) Toughness
(D) Compressive
The activity co-efficient of the solute in a dilute solution ?
(A) Decreases with the increase of concentration of the solute
(B) Increases with the increase of concentration of the solute
(C) Remains constant
(D) Is unity at infinite dilution
Insulation of liquid surface can be achieved by _____________ on top of its surface?
(A) Floating hollow polypropylene spheres
(B) Spraying alumina powder
(C) Putting cement
(D) None of these
At absolute zero temperature, for any reaction involving condensed phases ?
(A) Δ G° = 0 , Δ H° = 0
(B) Δ H° = 0 , Δ S° = 0
(C) Δ S° = 0 , Δ E° = 0
(D) Δ S° = 0 , Δ Cp° = 0
If a solid is compressed adiabatically in its elastic range, its _____________ remains constant ?
(A) Internal energy
(B) Enthalpy
(C) Entropy
(D) Temperature