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1
How many methods of mounting a pulley rigidly on a shaft ? [शाफ्टवर पुली कडकपणे बसविण्याच्या किती पद्धती आहेत?]
3
2
Due to localised movement of the belt resulting elastic stretch which is known as… [बेल्टच्या स्थानिक हालचालीमुळे लवचिक ताण निर्माण होतो ज्याला...]
creep
3
Which type of pipe is corrosion resistant and more flexible ? [कोणत्या प्रकारचे पाईप गंज प्रतिरोधक आणि अधिक लवचिक आहे?]
Plastic pipe
4
Which kind of pipe used for high pressure or high temperature ? [उच्च दाब किंवा उच्च तापमानासाठी कोणत्या प्रकारचे पाईप वापरले जातात?]
Steel pipe
5
Which kind of pipe is generally used for domestic purpose where pipe line contains frequent bent ? [ज्या पाईप लाईनमध्ये वारंवार वाकलेली असते तेथे सामान्यतः घरगुती कारणासाठी कोणत्या प्रकारचे पाईप वापरले जातात?]
PVC pipe
6
What is the thread angle of pipe thread ?
55°
7
Which process is used to join copper & brass tubes ?
Brazing or soldering
8
Which kind of iron is used for manufacturing of CI pipes ? [C.I पाईपचे उत्पादन करण्यासाठी कोणत्या प्रकारचे लोह वापरले जाते ?]
Grey cast iron
9
Which fitting is used to increase the length of pipe ?
Socket
10
Where the elbow fitting used ?
At an angle
11
Which type of pipe fitting is used for reducing diameter of pipe ? [पाईपच्या व्यास कमी करण्यासाठी कोणत्या प्रकारचे पाईप फिटिंग वापरले जाते?]
Reducer
12
Why is the plug used in pipe fittings ? [पाईप फिटिंगमध्ये प्लग का वापरला जातो?]
To close a pipe at end
13
Which is the standard metal bend fitting to change the direction of pipe ? [पाईपची दिशा बदलण्यासाठी मानक मेटल बेंड फिटिंग कोणते आहे?]
180°
14
Which type of pipe fitting is used to connect a branch pipe ?
Tee
15
What is the material of PVC pipe ?
Plastic
16
Which type of pipe is commonly used for water , steam , oil and gas ? [पाणी, वाफ, तेल आणि वायूसाठी सामान्यतः कोणत्या प्रकारचे पाईप वापरले जातात?]
Steel or wrought iron pipe
17
What do you understand by this symbol ?
90⁰ Elbow
18
Where will you se union or flanged union joint ?
For easy maintenance
19
Which pipe joints are used to connect the large diameter pipes ?
Flange joints
20
Which kind of pipe joints are used for carrying fluids under high pressure ? [उच्च दाबाखाली द्रव वाहून नेण्यासाठी कोणत्या प्रकारचे पाईप joint वापरले जातात?]
Hydraulic pipe joint
21
What is called the number of gears connected together ?
Gear train
22
What is the full form of PCD in gear ?
Pitch circle diameter
23
How many types of gear teeth profile are generally used ? [साधारणपणे किती प्रकारचे गियर दात प्रोफाइल वापरले जातात?]
2
24
Which is called the diameter at the bottom of the tooth spaces ? [दातांच्या तळाशी असलेल्या व्यासास काय म्हणतात?]
Root diameter
25
What is called the smaller one in pair of gears ?
Pinion
26
Which type of gear is used while two intersecting and co-planer shafts are connected by gears ? [दोन छेदणारे आणि सह-प्लॅनर शाफ्ट गियर्सद्वारे जोडलेले असताना कोणत्या प्रकारचे गियर वापरले जाते?]
Bevel gear
27
Which gear is used to transmit power in two parallel shafts with axial thrust ? [अक्षीय थ्रस्टसह दोन समांतर शाफ्टमध्ये शक्ती प्रसारित करण्यासाठी कोणते गियर वापरले जाते?]
Helical gear [हेलिकल गियर]
28
What is the definition of DP in gear ?
Ratio of number of teeth to PCD
29
What is the value of product of circular pitch and diametral pitch ? [गोलाकार पिच आणि डायमेट्रल पिचच्या product ची value काय आहे?]
π
30
Which is equal to the product of module and diametral pitch ? [मॉड्युल आणि डायमेट्रल पिचच्या गुणाकाराच्या बरोबरीचे कोणते?]
1.0
31
What is the sum of addendum and dedendum called ?
Whole depth
32
What is the included angle of double helical gear ?
120⁰
33
What type of gears are used to convert rotating motion into linear motion ? [फिरत्या गतीला रेखीय गतीमध्ये रूपांतरित करण्यासाठी कोणत्या प्रकारचे गियर वापरले जातात?]
Rack and pinion gear
34
In a worm and worm gear mesh the centre distance is C and Worm gear pitch diameter is D, What is the nominal pitch dia of worm (d) ? [वर्म आणि वर्म गियर मेशमध्ये मध्यभागी अंतर C आहे आणि वर्म गियर पिच व्यास D आहे, वर्म (d) चा नाममात्र पिच डायम किती आहे?]
d = 2C - D
35
What type of gear is needed to transmit motion between two parallel shaft ? [दोन समांतर शाफ्टमध्ये गती प्रसारित करण्यासाठी कोणत्या प्रकारच्या गियरची आवश्यकता आहे?]
Spur gear
36
What is the example of non intersecting and perpendicular axes gear transmission ? [नॉन इंटरसेक्टिंग आणि लंबवत अक्ष गियर ट्रान्समिशनचे उदाहरण काय आहे?]
Worm and worm wheel
37
What is gear train called if the axis of first and last gear are co-axial ? [पहिल्या आणि शेवटच्या गियरचा अक्ष सह-अक्षीय असल्यास गीअर ट्रेनला काय म्हणतात?]
Reverted gear train
38
Which gear profile has the infinite pitch radius ?
Rack
39
Which one of the following is proportion of simple indexing of gear cutting ?
40/N
40
Which one of the following drive is used for transmitting power with out slip ?
Gear drive
41
Which one of the following is proportion of standard gear tooth of circular pitch in terms of module (m) ? [मॉड्युल (m) च्या दृष्टीने गोलाकार पिचच्या स्टँडर्ड गियर टूथचे प्रमाण खालीलपैकी कोणते आहे?]
π m
42
What is the most common type of gear used?
Spur gear
43
What do you understand by DP ?
Diametral Pitch
44
What is the other name of double helical gear ?
Herringbone gear
45
Which gear is used for high speed and heavy duty ? [हाय स्पीड आणि हेवी ड्युटीसाठी कोणते गियर वापरले जाते?]
Helical gear
46
What is symbol of pressure angle ?
α
47
What is the pressure angle of spur gear tooth ?
14 ½°
48
Which type of gear is used to change the shaft direction ?
Bevel gear
49
Which kind of cam is needed for reciprocating motion of follower?
Edge Cam
50
Which factor effects the size of a cam ?
Pressure Angle