A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.For each of the following multiple choice questions, choose the most appropriate answer :
1. Thread ring gauges are used check external threads. Separate 'Go' and 'No Go' gauging members are provided. Which one of the following screw thread elements is not checked with the ring gauges?
A. Pitch
B. Helix angle
C. Profile
D. Pitch diameter
2. What is a built up edge is respect of a turning tool?
A. Job material embedded on tool edge
B. A carbide tip soldered on a tool shank
C. A method of reconditioning worn out cutting tool edge
D. A tool cutting edge with a crater on it
3. By using quick return mechanism in shaping machine the cutting stroke moves slow and return stroke fast. what is the ratio between cutting stroke and return stroke?
A. 2:3
B. 3:2
C. 5:3
D. 3:5
4. A product is said to have the quality when?
A. Its shape and dimensions are within the limits
B. It appears to be very good
C. It is fit for use
D. The choice of material is right
5. It is required to machine a single start worm of 2 module (m) and 60 mm pitch diameter, the speed ration is 40:1, to what length should the worm be cut?
A. 21 mm
B. 14.6 mm
C. 29.3 mm
D. 33.3 mm
6. A gear wheel has 36 teeth and 3 mm module, its pitch diameter is?
A. 12 mm
B. 75 mm
C. 80 mm
D. 108 mm
7. A 42 teeth involute helical gear with a helix angle of 45 deg is to be cut on a milling machine?
A. 12 to 13
B. 35 to 54
C. 135 to rake
D. 17 to 20
8. Who drafted the Declaration of American Independence?
A. George Washington
B. Abraham Lincoln
C. Thomas Jefferson
D. Jhon F Kennedy
9. A Shaft is turned in one finish cut which one of the following parameters will directly influence the machining time?
A. Cutting depth
B. Setting angle
C. Diameter of work piece
D. Tool travel distance
10. Which gear arrangement used to change the circular motion of horizontal to vertical without change in speed ratio?
A. Two spur gear
B. Two helical gear
C. Two bevel gear
D. Worm and worm gear
11. It is required to finish grind a dia 50mm hardened steel shaft on a cylindrical grinding machine, if the recommended surface speed of the work is 33 metres/minute, the rpm of the work is?
A. 190
B. 150
C. 210
D. 250
12. Zero setting of the two point bore dial gauge before the measurement is necessary to?
A. Account for the errors in the gauge
B. Facilitate comparison
C. Setup initial pressure in the gauge
D. Eliminate inaccuracy of the measurement
13. Which one of the following thread forms is provided in the threaded parts where the pressure acts on one flank of the threads during transmission?
A. V thread
B. Square thread
C. Knuckle thread
D. Buttress thread
14. There are two types of milling processes based on the direction of cutter rotation and work feed direction in up cut milling?
A. The work is fed in the same direction as the rotation of the cutter
B. Chip removal starts at the thickness part
C. Machine with backlash eliminator is essential
D. The work is fed against direction of the cutter rotation
15. Which milling machine is particularly adopted for milling internal or external profiles?
A. Pantograph milling machine
B. Universal milling machine
C. Planetary milling machine
D. Tracer controlled milling machine
16. How much energy will be required to heat one gm of water from 30 deg C to 40 deg C:
A. 10 Kilo Calories
B. 10 Calories
C. 10 Watts
D. 10 Btu
17. In Field Hockey, each team has ____ players on the field at any one time.
A. 9
B. 8
C. 11
D. 12
18. After simplification of ( 3 / 4 ) + ( 2 / 5 ) - ( 7 / 20 ), we will get:
A. 19 / 40
B. 9 / 20
C. 4 / 5
D. 17 / 20
19. The axis of the plate cam blank and the end mill spindle should always remain?
A. Inclined to each other
B. Parallel to each other
C. Opposite to each other
D. Vertical and inclined
20. The web of twist drill, due to repeated grinding causes resistance to feeding while drilling a 12 mm diameter hole, the above effect is reduced by providing?
A. Negative rake of web
B. Thinning of web
C. Less feeding force
D. More feeding force
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