MCQOPTIONS
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MCQOPTIONS
This section includes 270 Mcqs, each offering curated multiple-choice questions to sharpen your Dairy Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
What is the Processing temperature in membrane filtration applications? |
| A. | 15℃ |
| B. | 25℃ |
| C. | 65℃ |
| D. | 50℃ |
| Answer» E. | |
| 102. |
The milk after homogenization will not be suitable for the production of semi-hard or hard cheeses due to which of the following reasons? |
| A. | Too soft coagulum |
| B. | Too hard coagulum |
| C. | Off flavor |
| D. | Bitter taste |
| Answer» B. Too hard coagulum | |
| 103. |
At what age should a brucellosis vaccination be given to a calf? |
| A. | 2-6 months |
| B. | 3 months |
| C. | 12months |
| D. | 8 months |
| Answer» B. 3 months | |
| 104. |
Main application of positive displacement pump is in which of the following? |
| A. | Low viscosity products |
| B. | Heavily aerated liquids |
| C. | Gentle treatment with high viscosity |
| D. | Water treatment |
| Answer» D. Water treatment | |
| 105. |
What is the process called when the egg from the cow and the sperm from the bull are joined? |
| A. | milking |
| B. | making |
| C. | healing |
| D. | fertilization |
| Answer» E. | |
| 106. |
What is the use of agitator in tanks? |
| A. | To mix |
| B. | To heat |
| C. | To cleanse |
| D. | To impart flavor |
| Answer» B. To heat | |
| 107. |
Who calculates the official USDA DHIA Sire Summary? |
| A. | USDA |
| B. | UFSA |
| C. | UUA |
| D. | WHO |
| Answer» B. UFSA | |
| 108. |
Homogenization of milk may give milk which of the following off-flavor? |
| A. | Fruity |
| B. | Bitter |
| C. | Sunlight |
| D. | Salty |
| Answer» D. Salty | |
| 109. |
Which of the following centrifugal pumps has higher specific speed than the others? |
| A. | Axial flow |
| B. | Radial flow |
| C. | Mixed flow |
| D. | All centrifugal pumps have same specific speed |
| Answer» B. Radial flow | |
| 110. |
The solution to be concentrated or fractionated is called? |
| A. | Feed |
| B. | Flux |
| C. | Membrane fouling |
| D. | Permeate |
| Answer» B. Flux | |
| 111. |
The filtered water that has been treated by a membrane filter is called _____________ |
| A. | Permeate |
| B. | Concentrate |
| C. | Reject |
| D. | Pulp |
| Answer» B. Concentrate | |
| 112. |
Process tank has a scraper which aid in which kind of products? |
| A. | Viscous |
| B. | Dry |
| C. | Powder |
| D. | Milk |
| Answer» B. Dry | |
| 113. |
Which vitamin keeps eye and body cell linings healthy and working? |
| A. | vitamin D |
| B. | vitamin C |
| C. | vitamin K |
| D. | vitamin A |
| Answer» E. | |
| 114. |
What breed is the smallest of all the dairy breeds? |
| A. | Holstein |
| B. | Jersey |
| C. | Brown Swiss |
| D. | Guernsey |
| Answer» C. Brown Swiss | |
| 115. |
What purpose is served by covering a dairy show animal with a blanket?I. loosens the hairII. keeps animal clean |
| A. | I only |
| B. | II only |
| C. | I and II |
| D. | None |
| Answer» D. None | |
| 116. |
The process of filling the liquid into the suction pipe and pump casing up to the level of delivery valve is called as _________ |
| A. | Filling |
| B. | Pumping |
| C. | Priming |
| D. | Leveling |
| Answer» D. Leveling | |
| 117. |
The membrane filtration level with the smallest pore size (0.0001 – 0.001 µm) is called_____________ |
| A. | Micro filtration |
| B. | Reverse osmosis |
| C. | Nano filtration |
| D. | Ultra filtration |
| Answer» C. Nano filtration | |
| 118. |
How much whole milk with 3.9% fat and skimmed milk with 0.04% fat content will you need to produce 2000 kg of standardized milk with 2.5% fat? |
| A. | 725.4 kg |
| B. | 825.4 kg |
| C. | 925.4 kg |
| D. | 715.4 g |
| Answer» B. 825.4 kg | |
| 119. |
500 kg of milk testing 6.5% fat to be standardized to 3.1% fat using skim milk containing 0.05% fat. Therefore, the quantity of skim milk required to be added to 500 kg whole milk will be? |
| A. | 557.38 kg |
| B. | 440 kg |
| C. | 850 kg |
| D. | 500 kg |
| Answer» B. 440 kg | |
| 120. |
What is the condition called which results from a lack of Vitamin E in the diet? |
| A. | black muscle disease |
| B. | grey muscle disease |
| C. | white muscle disease |
| D. | brown muscle disease |
| Answer» D. brown muscle disease | |
| 121. |
What is the process called wherein the fat in milk is broken into small parts so it will not float to the top layer of milk? |
| A. | Pasteurization |
| B. | Thermalization |
| C. | Homogenization |
| D. | UHT |
| Answer» D. UHT | |
| 122. |
Homogenization reduce the size of fat globules to which size? |
| A. | Less than 2µ |
| B. | Less than 3µ |
| C. | Less than 4µ |
| D. | Less than 5µ |
| Answer» B. Less than 3µ | |
| 123. |
The lack of which vitamin causes night blindness in cattle? |
| A. | vitamin K |
| B. | vitamin B |
| C. | vitamin A |
| D. | vitamin C |
| Answer» D. vitamin C | |
| 124. |
What two colors is the Holstein breed? |
| A. | grey and white |
| B. | brown and black |
| C. | black and white |
| D. | white and brown |
| Answer» D. white and brown | |
| 125. |
For surface water system, the required residual disinfectant concentration may not be less than _______ mg/L for more than ___________ hours before the first customer. |
| A. | 0.2, 6 |
| B. | 2.0, 6 |
| C. | 0.2, 4 |
| D. | 2.0, 4 |
| Answer» D. 2.0, 4 | |
| 126. |
How many parts by weight of 40% cream and 3% milk must be mixed to make milk testing 5% fat? |
| A. | 2 and 35 |
| B. | 4 and 45 |
| C. | 5 and 10 |
| D. | 6 and 12 |
| Answer» B. 4 and 45 | |
| 127. |
Great economies of operation may be made in large installations with ___________ |
| A. | Multiple effect evaporator |
| B. | Centri-therm evaporator |
| C. | Falling film evaporator |
| D. | Rising film evaporator |
| Answer» B. Centri-therm evaporator | |
| 128. |
Which among the following is not a permanent wielding connection? |
| A. | Bends |
| B. | Reducers |
| C. | Sampling device |
| D. | Tees |
| Answer» D. Tees | |
| 129. |
As the film rises further evaporation occurs until they reach the top of the tubes. The mixture of vapor and milk then passes into a separate chamber from which the vapor passes to a condenser. Name the evaporator. |
| A. | Climbing film evaporator |
| B. | Falling film evaporator |
| C. | Plate evaporator |
| D. | Forced circulation evaporator |
| Answer» B. Falling film evaporator | |
| 130. |
Which of the following membrane separation technique would be most suitable for the reduction of bacteria in skim milk? |
| A. | Reverse osmosis |
| B. | Nano filtration |
| C. | Ultra filtration |
| D. | Membrane filtration |
| Answer» E. | |
| 131. |
The effect of homogenization on the physical structure of milk has which of the following advantages?I) Smaller fat globules leading to no cream-line formationII) Somewhat increased sensitivity to light – sunlight and fluorescent tubesIII) Reduced heat stability |
| A. | I) only |
| B. | I) and III) |
| C. | I), II) and III) |
| D. | II) only |
| Answer» B. I) and III) | |
| 132. |
Which of the following is the disadvantage of climbing film evaporator? |
| A. | Severe scale formation |
| B. | Over heating |
| C. | Small concentration |
| D. | Low pressure |
| Answer» B. Over heating | |
| 133. |
Major Application of Bactofugation is in which of the following processing? |
| A. | Wine processing |
| B. | Juice processing |
| C. | Cheese processing |
| D. | Ice cream processing |
| Answer» D. Ice cream processing | |
| 134. |
What are the two parts of a cows hoof?I. soleII. heelIII. claw |
| A. | I only |
| B. | II only |
| C. | I and II |
| D. | I, II, and III |
| Answer» E. | |
| 135. |
Application of Single-stage homogenization is in? |
| A. | Products demanding a high viscosity (certain cluster formation). |
| B. | Product with low viscosity |
| C. | Product with no viscosity |
| D. | Product without fat |
| Answer» B. Product with low viscosity | |
| 136. |
What is the weight of a newborn calf? |
| A. | 70-100 pounds |
| B. | 120 pounds |
| C. | 50-60 pounds |
| D. | 20 pounds |
| Answer» B. 120 pounds | |
| 137. |
Name the theory of homogenization According to which homogenization takes place when the liquid is leaving the gap, so the back pressure which is important to cavitation is important to homogenization. |
| A. | Cavitation theory |
| B. | Eddies theory |
| C. | Current theory |
| D. | Voltage theory |
| Answer» C. Current theory | |
| 138. |
The separation limit for a membrane is determined by the lowest ___________ that can be separated. |
| A. | Fractional weight |
| B. | Molecular weight |
| C. | Ion weight |
| D. | Mass |
| Answer» C. Ion weight | |
| 139. |
What is the largest single part of all living things? |
| A. | protein |
| B. | nutrients |
| C. | water |
| D. | skin |
| Answer» D. skin | |
| 140. |
Cream with higher fat content than ____ cannot normally be homogenized at the normal high pressure. |
| A. | 5% |
| B. | 10% |
| C. | 12% |
| D. | 15% |
| Answer» D. 15% | |
| 141. |
Switzerland is the origin of what dairy breed? |
| A. | Holstein |
| B. | Jersey |
| C. | Brown Swiss |
| D. | Guernsey |
| Answer» D. Guernsey | |
| 142. |
One group of mammals eats meat and are called carnivores. What is the group that eats grass and grains called? |
| A. | omnivore |
| B. | autotrophs |
| C. | carnivore |
| D. | herbivore |
| Answer» E. | |
| 143. |
What is a male dairy animal called? |
| A. | cow |
| B. | vache |
| C. | moose |
| D. | bull |
| Answer» E. | |
| 144. |
What are the six nutrients animals need?I. carbohydrateII. fat and proteinIII. vitaminIV. mineral and water |
| A. | I only |
| B. | II and III |
| C. | III and IV |
| D. | I, II, III, and IV |
| Answer» E. | |
| 145. |
Storage tank inner shell is made of which of the following material? |
| A. | Copper |
| B. | Steel |
| C. | Stainless steel |
| D. | Aluminum |
| Answer» D. Aluminum | |
| 146. |
Which of the following factors do not affect the rate of evaporation? |
| A. | Temperature of liquid |
| B. | Humidity of surrounding air |
| C. | Depth of liquid |
| D. | Surface of liquid |
| Answer» D. Surface of liquid | |
| 147. |
What is a group of dairy cattle called? |
| A. | flock |
| B. | troop |
| C. | group |
| D. | herd |
| Answer» E. | |
| 148. |
Rotary displacement pumps are suitable for handling ________ |
| A. | Oils |
| B. | Gritty liquids |
| C. | Both oils as well as gritty liquids |
| D. | Granules |
| Answer» B. Gritty liquids | |
| 149. |
The Ayrshire breed of dairy cow first came from what country? |
| A. | Netherlands |
| B. | New Zealand |
| C. | USA |
| D. | Scotland |
| Answer» E. | |
| 150. |
Ratio of capacity to economy is known as ________ |
| A. | Water consumption per hour |
| B. | Steam consumption per hour |
| C. | Sediment consumption per hour |
| D. | Milk consumption per hour |
| Answer» C. Sediment consumption per hour | |