Industrial Hydraulics and Pneumatics (IHP)

ME6I

1   Which one of the following circuit is suitable for handling negative loads
    (A)   Meter-in circuit
    (B)   Meter-out circuit
    (C)   Bleed-off circuit
    (D)   Sequencing circuit
2   Identify the symbol
    (A)   Pilot operated check valve
    (B)   Simple check valve
    (C)   Pressure control valve
    (D)   Pressure relief valve
3   Power of hydraulic circuit is expressed by
    (A)   Pressure + flow rate
    (C)   Pressure / flow rate
    (D)   Flow rate / pressure
    (B)   Pressure x flow rate
4   Piston force is expressed by
    (A)   Pressure x area of piston
    (B)   Pressure x (1/2) x area of piston
    (C)   Pressure / area of piston
    (D)   Area of piston / pressure
5   —– is used for storing excess hydraulic energy.
    (A)   Hydraulic pump
    (B)   Booster pump
    (C)   FRL unit
    (D)   Accumulator
6   Which pump is suitable for developing pressure up to 700 bar?
    (A)   External gear pump
    (B)   Internal gear pump
    (C)   Axial piston pump
    (D)   Vane pump
7   Following law is the basis of oil hydraulic system
    (A)   Pascal’s law
    (B)   Boyle’s law
    (C)   Charles’ law
    (D)   Newton’s second law
8   —– is the protective valve of the hydraulic system.
    (A)   Flow control valve
    (B)   Speed control valve
    (C)   Direction control valve
    (D)   Pressure relief valve
9   4 x 3 DC valve means
    (A)   4 ports, 3 positions
    (B)   4 positions, 3 ports
    (C)   4 ports, 3 directions
    (D)   4 ports, 3 pistons
10   For actuation of single acting cylinder which valve is used
    (A)   2 x 2
    (B)   3 x 2
    (C)   4 x 2
    (D)   4 x 3
11   For controlling speed of the actuator which valve is operated?
    (A)   Pressure relief valve
    (B)   Pressure control valve
    (C)   Direction control valve
    (D)   Flow control valve
12   In which hydraulic circuit by-pass line is provided for speed control
    (A)   Meter-in circuit
    (B)   Meter-out circuit
    (C)   Bleed-off circuit
    (D)   Speed control circuit
13   Pneumatic system can be used up to —- bar.
    (A)   10 bar
    (C)   30 bar
    (D)   100 bar
    (B)   700 bar
14   Identify the following symbol
    (A)   FRL unit
    (B)   Pressure regulator
    (C)   Flow regulator
    (D)   Speed regulator
15   Identify the following symbol
    (A)   4 x 2 valve
    (B)   2 x 2 valve
    (C)   3 x 2 valve
    (D)   3 x 3 valve
16   Compression spring is used in
    (A)   Double acting cylinder
    (B)   Single acting cylinder
    (C)   Tandem cylinder
    (D)   Telescopic cylinder
17   Seal that is used in two mating parts which are having relative motion between them is
    (A)   Static seal
    (B)   Dynamic seal
    (C)   Roto-dynamic seal
    (D)   Fixed seal
18   Pressure relief valve is
    (A)   Normally open
    (B)   Normally closed
    (C)   Fully closed
    (D)   Fully open
19   Three rams assembled in each other
    (A)   Tandem cylinder
    (B)   Telescopic cylinder
    (C)   Double acting cylinder
    (D)   Single acting cylinder
20   In hydraulic grinding machine —- is used
    (A)   Double acting cylinder with single piston rod
    (B)   Double acting cylinder with double piston rod
    (C)   Tandem cylinder
    (D)   Telescopic cylinder
21   Identify the following symbol
    (A)   Filter
    (B)   Pump
    (C)   Valve
    (D)   Pressure relief valve
22   Identify the following symbol
    (A)   Pressure relief valve
    (B)   Tandem cylinder
    (C)   Unloading valve
    (D)   Single acting ram
23   Identify the following symbol
    (A)   4 x 3 open center position valve
    (C)   4 x 3 tandem center position valve
    (D)   4 x2 open center position valve
    (B)   4 x 3 closed center position valve
24   Identify the following symbol
    (A)   Pump
    (B)   Filter
    (C)   Sequence valve
    (D)   Pressure reducing valve
25   Identify the following symbol
    (A)   DC valve
    (B)   Sequence valve
    (C)   Solenoid valve
    (D)   Variable flow control valve
26   Seal which is used in two mating parts which are having no relative motion between them is
    (A)   Dynamic seal
    (B)   Static seal
    (C)   Roto-dynamic seal
    (D)   Fixed seal
27   Hydraulic oil should have
    (A)   High foaming tendency
    (B)   Low foaming tendency
    (C)   Moderate foaming tendency
    (D)   None of the above
28   The element which converts fluid energy into mechanical work is called as
    (A)   Actuator
    (B)   Valve
    (C)   Filter
    (D)   Accumulator
29   Check valve is also called as
    (A)   Relief valve
    (B)   Bypass valve
    (C)   Shutoff valve
    (D)   Non-return valve
30   Which one is the driving element in internal gear pump
    (A)   Internal gear
    (B)   External gear
    (C)   Crescent
    (D)   None of the above
31   In external gear pump
    (A)   There is one driving gear and one driven
    (B)   There are two driving gears
    (C)   There are two stationary gears
    (D)   None of the above
32   The stationary part in internal gear pump is called as —–
    (A)   External gear
    (B)   Internal gear
    (C)   Crescent
    (D)   Driving shaft
33   In gerotor pump, the difference of tooth/teeth between internal gerotor and external gerotor
    (A)   2 teeth
    (C)   1 tooth
    (D)   3 teeth
    (B)   None of the above
34   Double check valve is also called as
    (A)   Shuttle valve
    (B)   Poppet valve
    (C)   Impulse valve
    (D)   None of the above

Back to Top

Home