Related Questions

A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 litres of milk such that the ratio of water to milk is 3 : 5?
A 4 litres, 8 litres
B 6 litres, 6 litres
C 5 litres, 7 litres
D 7 litres, 5 litres
After taking 30 socks out of the dryer. Dina noticed that the ratio of blue socks to brown socks to black socks was 2 : 3 : 5. How many black socks were in the dryer?
A 21
B 15
C 9
D 6
After taking 30 socks out of the dryer, Dina noticed that the ratio of blue socks to brown socks to black socks was 2:3:5. How many black socks were in the dryer?
A 21
B 15
C 9
D None of these
Dryer widely used in a textile industry is __________ dryer.
A Festoon
B Cylinder
C Conveyor
D Tunnel
For continuous drying of grannular or crystalline material, the dryer used is the __________ dryer.
A Tunnel
B Tray
C Rotary
D None of these
In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be
A High, of the order of 25°
B As low as possible (3 to 11°C)
C Zero
D Any value
In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in
A Parallel flow
B Counter flow
C Cross flow
D All of these
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.
A Dry-bulb
B Wet-bulb
C Dew point
D Adiabatic saturation
__________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.
A Dry bulb
B Wet bulb
C Dew point
D None of these
For water evaporating into usaturated air under adiabatic conditions and at constant pressure, the __________ remains constant throughout the period of vaporisation.
A Dry bulb temperature
B Wet bulb temperature
C Humidity
D Relative saturation

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