FITTER TT 4TH SEM EXAM NO 2

------ is a device which removes solid contaminants from the fluid

• valve

• filter

• solinoid

• tank

------- is a substance that impairs the proper functioning of the fluids

• contaminants

• filter

• valve

• purifier

there are -------- types of filters generally used in hydraulic system

• 2

• 5

• 4

• 3

----------- filters contain closely woven metal screens or discs

• Mechanical filter

• Absorbent filte

• adsorbent filter

• magnetic filter

---------- filter used for trapping various sizes of particulate matte

• mechanical filter

• absorbent filter

• magnetic filter

• adsorbent filter

In hydraulic system ,to check for oil leak -------- are used

• paper

• carboard

• hand

• cloth

 What type of pump is a piston pump?

• Negative displacement pump
• Lil Pump
• Positive displacement pump
• Multi-Inverse Pump

What is one advantage of a piston style pump?

• More tolerant to contamination 
• Less expensive 
• Least moving parts
• Wide range of pressure

What is the maximum pressure  a balanced vane pumps handle?

• 10,000 psi
• 3,000 psi
• 4,000 psi
• 2,000 psi

Vane pumps are ______ efficient than piston pumps, and ______ efficient than gear pumps. 

• More; less 
• Less; less
• More; more 
• Less; more