Enzymes belong to the category of_____________________?
(A) Proteins
(B) Carbohydrates
(C) Vitamins
(D) Fats
According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to _______________ times the yield stress ?
(A) 0.5
(B) 2
(C) √2
(D) √3/2
Rankine cycle comprises of two isothermal and two ___________________ processes?
(A) Isobaric
(B) Polytropic
(C) Isentropic
(D) None of these
Moist air is cooled along the line of constant ________________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs ?
(A) Enthalpy
(B) Relative humidity
(C) Wet bulb temperature
(D) Dew point temperature
Alloy powder manufactured by the following process have spherical shapes ?
(A) Electrochemical deposition
(B) Gaseous reduction
(C) Atomisation
(D) Mechanical attrition
Glycerine is used as a coolant in cooling of some engines instead of water, because___________________?
(A) Its higher boiling point (290°C) increases its heat carrying capacity
(B) Comparatively less weight of coolant is required
(C) Smaller radiator can be used
(D) All a, b & c
The product (s) of roasting of a sulphide ore is (are) ?
(A) Oxide only
(B) Sulphate only
(C) Oxide and sulphate
(D) Dependent on temperature and partial pressure of oxygen & sulphur dioxide
A jig is used while __________________ a hole?
(A) Boring
(B) Counter boring
(C) Drilling
(D) Enlarging
The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is___________________?
(A) Full annealing
(B) Bright annealing
(C) Patenting
(D) None of these
Which of the following is the largest quantum of pressure ?
(A) 1 kg/cm2
(B) 1 bar
(C) 1 atmosphere
(D) 1 kilo Pascal