This set of Farm Machinery Multiple Choice Questions & Answers (MCQs) focuses on “Plant Protection Equipments – Hydraulic Energy Sprayers”.
1. Tank of hydraulic sprayers is made of ________
a) Metal
b) Fibre glass
c) Polythene
d) PVC
View Answer
Explanation: Hydraulic sprayers are electric motor which are driven, and are available with single or double or the triple piston pumps. The single piston pump develops a maximum pressure of 150 psi, whereas the double and triple piston type develops 300 – 400 psi.
2. In tank of hydraulic sprayer, the function of drain plug is to _______
a) Regulate the sprayer rate
b) Control the pressure
c) Drain and clean the tank
d) Control volume
View Answer
Explanation: A drain plug is a plug which is taken out to pass a fluid to be drained from a tank such as an engine oil pan. For this, remove the oil drain plug and allow oil to drain out.
3. The kind of agitator used in hydraulic sprayer is ________
a) Paddle type
b) Plunger type
c) Wooden type
d) Glass type
View Answer
Explanation: Agitators are needed to agitate the liquid of the tank. Propeller or paddle type mechanical agitators are provided for agitating.
4. In hydraulic sprayer, the air chamber is provided on _________
a) Top of the tank
b) Discharge line of pump
c) Below tank
d) A frame near operator seat
View Answer
Explanation: In hydraulic sprayers, an air chamber is provided on pulsations of the pump, thereby providing a constant nozzle pressure.
5. In hydraulic sprayers, the pressure gauge is equipped __________
a) On top of the tank
b) On a frame near tank
c) On discharge line of sprayer
d) Below tank
View Answer
Explanation: The presence gauge is provided on the discharge line of sprayer to guide the operator regarding spray pressure.
6. In hydraulic sprayer, the cut off valve is used to control the _________
a) Flow to boom
b) Pressure
c) Spray rate
d) Drop size
View Answer
Explanation: A valve that stops the flow of fluid in a system is known as cut off valve. This enables the direct control of flow rate and the following control of process quantities consisting pressure, temperature, and liquid level.
7. In hydraulic sprayer, the strainer is equipped in _______
a) Delivery line
b) Suction line
c) Boom
d) Tank
View Answer
Explanation: In hydraulic sprayer, a strainer is inserted in the suction line between the tank and the pump to remove dust, dirt and other foreign materials.
8. Most of the hydraulic sprayers are equipped with _______
a) Positive displacement pump
b) Reciprocating pump
c) Centrifugal pump
d) Rotary pump
View Answer
Explanation: Piston or plunger pump is a positive displacement pump and has got a spring-loaded by-pass valve to control the pressure. It is well suited for high pressure spraying and is used in hydraulic sprayers.
9. In hydraulic sprayers, the most common length of boom for general field use is ______
a) 16.50 m
b) 15 m
c) 10 m
d) 6.30 m
View Answer
Explanation: A boom sprayer is a pipe with nozzles attached to it for distributing spray from a tank. Boom sprayers are used to apply liquid fertilizers, pesticides, or other liquids to crops during their vegetative cycle.
10. In hydraulic sprayers, the amount of vertical adjustment for spraying on plants of various heights varies from ______
a) 45.7 cm 118 m
b) 20-25 m
c) 1.5 cm to 3.5 m
d) 10-100 m
View Answer
Explanation: Hydraulic sprayer is an implement for the large-scale application of insecticides or fungicides to crops in the form of a spray compare mist blower.
Sanfoundry Global Education & Learning Series – Farm Machinery.
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