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This collar is too limp _এর অর্থ ___
ক
এই কলারটি বড্ড শক্ত
খ
এই কলারটি বড্ড খসখসে
গ
এই কলারটি বড্ড নরম
ঘ
এই কলারটি বড্ড দৃঢ়
সঠিক উত্তর:
এই কলারটি বড্ড নরম
This collar is too limp _এর সঠিক অর্থ হচ্ছে___ এই কলারটি বড্ড নরম
If joint is to fail by crushing of socket collar then estimate the diameter of socket collar. Given Permissible compressive stress= 126.67 N/mm².; Spigot dia=65mm; thickness 0f collar=15mm
ক
131mm
খ
139mm
গ
141mm
ঘ
149mm
A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the collar torque in terms of clamping force W assuming uniform wear theory if nominal diameter=22mm and pitch=5mm.
ক
4.5W
খ
5.4W
গ
4.25W
ঘ
3.37W
There are blank spaces in the following passage which have been numbered . These numbers are printed below the passage and against each some words are suggested . Find out the word that best fit the blank spaces. Global Strategies to control infective disease have historically included the erection of barriers to international travel and ___ (24) _______. Keeping people with such deadly disease outside national borders has ___ (25) _______ as an important public health policy in the human immunodeficiency virus (HIV) epidemic . Betwwn 29 and 50 countries ___ (26) _____ to have introduced border restrictions on HIV _ positive foreigners ,usually those planning an ___ (27) ___ stay in the country , such as students , workers or seamen.
ক
migration
খ
immigrate
গ
emigration
ঘ
immigration
The nut which has a cylindrical grooved collar at its lower end and this collar fits into a corresponding recess in the adjoining piece is named as.
ক
Simmond’s locknut
খ
Grooved nut
গ
Castle nut
ঘ
Sawn nut or wiles nut
____________________ roof is similar to the collar beam roof accept that two collar beams which are crossing each other to present an appearance of scissors are provided.
ক
Collar and scissor
খ
Collar beam
গ
Tie beam
ঘ
Lean on
In a collar tie roof, a higher collar position gives a stronger roof.
ক
True
খ
False
A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the screw torque in terms of clamping force W if nominal diameter=22mm and pitch=5mm.
ক
3.567W N-mm
খ
2.286W N-mm
গ
3.564W N-mm
ঘ
None of the mentioned
A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the clamping force W if nominal diameter=22mm and pitch=5mm.
ক
4539.45N
খ
2868.73N
গ
3657.56N
ঘ
2134.34N
A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the overall efficiency if nominal diameter=22mm and pitch=5mm.
ক
18.12%
খ
12.18%
গ
21.23%
ঘ
23.21%
A line from where fold comes over and divides collar into stand and outer collar section
ক
roll line
খ
neck line
গ
rolled edge
ঘ
collar edge