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問題一覧
1
Which of the following materials is used to make a bench vice body?
cast iron
2
How many types of a drill bush?
03
3
Where the seat is secured in a vertical hollow pipe in a dead weight safety valve?
To the top end
4
What will be the form of a gas or liquid when it will be heated?
Expand
5
Which of the following has storage reservoir where liquid is stored under pressure?
Hydraulic Accumulator
6
What is the material of weight carrier part of dead weight safety valve?
cast iron
7
What is the length of a handle of vice?
2.5 times of nominal size of vice
8
in which shape three way ball valves come in fluid passageways inside the rotor?
T or L
9
What is called the standard condition of 20°C and 101.3 kpa ?
NTP
10
Which of these is an externally fired boiler?
Lancashire boiler
11
Which one is pneumatic system?
Air brakes on a truck
12
Spring loaded safety valve is also called?
rams bottom safety valve
13
What is the material of lever in safety valves?
c. s
14
How many steel bearing are used in a lever safety valve?
01
15
Which of the following is not a type of valve?
eccentric valve
16
Which jig has no base plate?
Plate jig
17
Which of the following operation jigs are not used?
milling
18
In the fire tube boilers content of tubes are?
hot gas
19
Which jig has no base?
Channel jig
20
Which object is placed near the fulcrum end of the lever through which the load is adjusted?
counter weight
21
How many ports & positions in a 3/2 direction control valve?
3 ports & 2 positions
22
Which of the following device is used to remove dissolve gases from boiler feed water?
Deaerator
23
Which of the following factors generate force and on which hydraulic jack depend?
Pressure
24
Which material is not used to make a valves?
wood
25
Where a gland & stuffing box arrangement is provided in blow of cock?
cover
26
Valve of a pressure cooker is an example of which type of safety valve ?
dead weight
27
When the sprig is compressed by nuts on the pillars, by which object its length being adjusted?
collars
28
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
29
What is the use of hand vice?
To hold the small size of job
30
Which is not the basic feature of drill jig?
screw jack
31
What is typical range of valves that vary widely in form, application and sizes?
0.1 mm to 60 cm
32
Which is the most frequently used accumulator type?
Compressed gas accumulator
33
Which of the following is not the function of a jig?
Finishing
34
Which of the following valves has four ports equally spaced around the body?
Four way valve
35
Where the blow off cock fitted?
lower part of boiler
36
Which type of thread is cut on the spindle of bench vice?
square thread
37
Which of the following components are used to prevent the leakage of a gas or fluids from valves?
gasket
38
Which arrangement is used to increase the temperature of saturated steam without raising its pressure?
super heater
39
Which part is used as a lifting device to lift heavy load?
ram
40
What is the use of template?
Marking on job
41
Which device is used to hold the work piece securely in a jig or fixture against the cutting force?
Clamping device
42
On which principal Spring type accumulator works?
Hooke's law
43
Which of the following mountings used in steam boiler ?
safety valve
44
What is the medium used in pneumatic system?
air
45
Which component is used to manually control a valve from out side the value body?
handle
46
Which of the followings is used to remove impurities from boiler?
Blow off cock
47
Which material is generally used to make blow off cock?
gun metal
48
Which type of device is Hydraulic jack?
mechanical device
49
If the handle is turned 90 degree between operating position the valve is called?
Quarter turn valve
50
Why is vice clamp used?
To hold the job strongly