Nucleic acids direct the synthesis of__________________?
(A) Glucose
(B) Triglycerides
(C) Proteins
(D) All
Purines and pyrimidines are__________________?
(A) Enzymes
(B) Nitrogenous bases
(C) Carbohydrates
(D) Lipids
Rate of enzymatic reaction is directly proportional to the concentration of___________________?
(A) Enzyme
(B) Substrate
(C) Enzyme and substrate
(D) Enzyme and product
Enzynies that catalyze the transfer of groups within molecule are called_________________?
(A) Isomerases
(B) Lyases
(C) Transferases
(D) Ligases
The important function of burning zone in the rotary kilm is __________________?
(A) to dry the moisture of slurry
(B) to decompose lime stone to unslaked lime
(C) combination of different oxides like CaO SiO2 Fe2O3 and Al2O3
(D) to reduce the impurities
The composition of mixture of clay and lime stone in the raw for cement material is __________________?
(A) 75% lime stone and 25% clay
(B) 25% lime stone and 75% clay
(C) 15% lime stone and 55% clay
(D) 55% lime stone and 15% clay
Which sequence of steps is correct for the manufacture of cement ?
(A) crushing heating mixing grinding
(B) crushing mixing heating grinding and mixing
(C) crushing grinding mixing heating
(D) mixing heating grinding crushing
Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?
(A) Lime (CaO)
(B) Silica (SiO2)
(C) Alumina (Al2O3)
(D) Magnesia (MgO)
Cement is a mixture of________________?
(A) clay and clinker
(B) clay lime stone and gypsum
(C) lime stone and gypsum
(D) lime stone and clay
Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?
(A) urea
(B) calcium superphosphate
(C) diammonium phosphate
(D) potassium nitrate