Oil Hydraulics and Pneumatics (3151913) MCQs

MCQs of Hydraulic Oils, Fluid Properties and Filter

Showing 1 to 10 out of 43 Questions
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1.

Which of the following is not a power generation device?

(a)

Engine
(b)

Relay
(c)

Pump
(d)

Compressor
Answer:

Option (b)

2.

Oil-in-water emulsions made of_____.

(a)

95% water and 5% oil
(b)

95% oil and 5% water
(c)

50% water 50% oil
(d)

None of the above
Answer:

Option (a)

3.

Which is the commonly used fluid for the Aircraft hydraulic system?

(a)

Synthetic fluids
(b)

Emulsions
(c)

Biodegradable
(d)

Water glycol
Answer:

Option (d)

4.

Synthetic Fluids are made from______.

(a)

Silica gel
(b)

Ammonium sulfate
(c)

Phosphate ester
(d)

Chlorides of phosphorus
Answer:

Option (c)

5.

The ratio of Weight to Volume is known as _____.

(a)

Specific Weight 
(b)

Specific Volume
(c)

Specific Gravity
(d)

Specific Density
Answer:

Option (a)

6.

Strainers can block the particles of________.

(a)

Less than 1 μm
(b)

1 to 25 μm
(c)

25 to 150 μm
(d)

Greater than 150 μm
Answer:

Option (d)

7.

Filters can block the particles of________.

(a)

Less than 1 μm
(b)

1 to 25 μm
(c)

25 to 150 μm
(d)

Greater than 150 μm
Answer:

Option (a)

8.

Which fluid is suitable for high-temperature applications?

(a)

Synthetic fluids
(b)

Emulsions
(c)

Biodegradables
(d)

Water glycol
Answer:

Option (a)

9.

Which of the following is not the type of filter?

(a)

Mechanical
(b)

Absorption
(c)

Absorbant
(d)

Synthetic
Answer:

Option (d)

10.

What are the reasons causing a pressure drop in hydraulic systems?

1. long length of pipe

2. friction

3. type of fluid

4. losses in valves and bends

(a)

1 & 3
(b)

Only 1
(c)

2 & 3
(d)

All of the given
Answer:

Option (d)

Showing 1 to 10 out of 43 Questions
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