Oil Hydraulics and Pneumatics (3151913) MCQs

MCQs of Hydraulic Oils, Fluid Properties and Filter

Showing 1 to 10 out of 43 Questions
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