Search
.Management Sciences
Author: Hamad
The slope of the feed line in distillation operation is given by (where, q = fraction of the feed stream that is liquid ?
A. -q
B. -q/(1-q)
C. -q/(q-1)
D. None of these
Energy of activation for backward reaction is less than forward reaction for ___________ reactio?
A. Endothermic
B. Exothermic
C. Moderate
D. Fast
A centrifugal pump loses prime after starting. The reason of this trouble may be_____________________?
A. Incomplete priming
B. Too high a suction lift
C. Low available NPSH and air leaks in the suction pipe
D. All A., B., and C.
The condilion for a lifting machine to be reversible is that its efficiency should be_________________?
A. less than 50%
B. more than 50%
C. more than 66.67%
D. equal to 100%
With increase in carbide/graphite ratio in cast iron, its__________________?
A. Hardness & brittleness increases
B. Ductility decreases
C. Both A. and B.
D. Neither A. nor B.
The sum of values divided by their number is called___________?
A. Median
B. Harmonic Mean
C. Mean
D. Mode
E. None of these
Tomato would not have turned red if__________________?
A. They were kept at the bottom layer of box
B. They were mixed with ripe apples
C. There were no ripe apples in the box
D. Less “hey”had been put in the box
Chemical name of Grignard reagent is__________________?
A. Sodium thiosulphate
B. Ethyl magnesium chloride
C. Sodium sulphite
D. Sodium bicarbonate
Which of the following is not used as a filter medium in case of corrosive liquids?
A. Nylon
B. Glass cloth
C. Metal cloth of monel or stainless steel
D. Cotton fabric
Recent Comments