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問題一覧
1
Which jig has no base plate?
Plate jig
2
Which of the following valves has four ports equally spaced around the body?
Four way valves
3
Which of the following has storage reservoir where liquid is stored under pressure?
Hydraulic Accumulator
4
Which of the followings is used to remove impurities from boiler?
Blow off cock
5
Where a gland & stuffing box arrangement is provided in blow of cock?
Cover
6
Which of the following is not a type of valve?
Eccentric valve
7
In which shape three way ball valves come in fluid passageways inside the rotor?
T or L
8
Which material is not used to make a valves?
Wood
9
Which type of device is Hydraulic jack?
Mechanical device
10
Which component is used to manually control a valve from out side the value body?
Handle
11
If the handle is turned 900 between operating position the valve is called?
Quarter turn valve
12
Which is the most frequently used accumulator type?
Compressed gas accumulator
13
Which of the following device is used to remove dissolve gases from boiler feed water?
Deaerator
14
What will be the form of a gas or liquid when it will be heated?
Expand
15
Which of the following is not the function of a jig?
Finishing
16
Which object is placed near the fulcrum end of the lever through which the load is adjusted?
Counter weight
17
Why is vice clamp used?
To hold the job strongly
18
Which of the following mountings used in steam boiler ?
Safety valve
19
Which part is used as a lifting device to lift heavy load?
Ram
20
How many steel bearing are used in a lever safety valve?
01
21
How many types of a drill bush?
03
22
What is the length of a handle of vice?
2.5 times of nominal size of vice
23
Where the blow off cock fitted?
Lower part of boiler
24
Which type of thread is cut on the spindle of bench vice?
Square thread
25
What is typical range of valves that vary widely in form, application and sizes?
0.1 mm to 60 cm
26
Spring loaded safety valve is also called?
Rams bottom safety valve
27
What is the use of template?
Marking on job
28
What is the use of hand vice?
To hold the small size of job
29
Which jig has no base?
Channel jig
30
Which of these is an externally fired boiler?
Lancashire boiler
31
Which is not the basic feature of drill jig?
Screw sack
32
What is the material of weight carrier part of dead weight safety valve?
Cast Iron
33
Where the seat is secured in a vertical hollow pipe in a dead weight safety valve?
To the top end
34
Which device is used to hold the work piece securely in a jig or fixture against the cutting force?
Clamping device
35
Which of the following materials is used to make a bench vice body?
Cast Iron
36
Which material is generally used to make blow off cock?
Gun Metal
37
What is called the standard condition of 20°C and 101.3 kpa ?
NTP
38
Which part is used in Rams bottom safety valve to act when the steam pressure exceeds the set values and allow the steam to escape?
Spring
39
Which of the following operation jigs are not used?
Milling
40
Which of the following components are used to prevent the leakage of a gas or fluids from valves?
Gasket
41
Which arrangement is used to increase the temperature of saturated steam without raising its pressure?
Super Heater
42
Valve of a pressure cooker is an example of which type of safety valve ?
Dead weight
43
Which one is pneumatic system?
Air brakes on a truck
44
How many ports & positions in a 3/2 direction control valve?
3 ports & 2 positions
45
Which of the following factors generate force and on which hydraulic jack depend?
Pressure
46
On which principal Spring type accumulator works?
Hooke's law
47
In the fire tube boilers content of tubes are?
Hot gas
48
What is the material of lever in safety valves?
C.S
49
What is the medium used in pneumatic system?
Air
50
When the sprig is compressed by nuts on the pillars, by which object its length being adjusted?
Collars