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- Question
Nuclear reactors are used
Options- A. to produce heat for thermoelectric power
- B. to produce fissionable material
- C. to propel ships, submarines, aircrafts
- D. all of these
- Correct Answer
- all of these
- 1. Acceptance sampling is used in
Options- A. job production
- B. batch production
- C. mass production
- D. all of these Discuss
- 2. The upper critical point varies according to the carbon content in steel.
Options- A. True
- B. False Discuss
- 3. Trepanning is an operation of
Options- A. making a cone-shaped enlargement of the end of a hole
- B. smoothing and squaring the surface around a hole
- C. sizing and finishing a small diameter hole
- D. producing a hole by removing metal along the circumference of a hollow cutting tool Discuss
- 4. According to Euler's column theory, the crippling load of a column is given by p = ?2 EI/Cl2. In the Euler's formula, the value of C for a column with one end fixed and the other end free, is
Options- A. 1/2
- B. 1
- C. 2
- D. 4 Discuss
- 5. The addition of lead, sulphur and phosphorus to low carbon steels, help to
Options- A. reduce built up edge
- B. break up chips
- C. improve machinability
- D. all of these Discuss
- 6. If percentage reduction in area of a certain specimen made of material 'A' under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material 'B' is 40%, then
Options- A. the material A is more ductile than material B
- B. the material B is more ductile than material A
- C. the ductility of material A and B is equal
- D. the material A is brittle and material B is ductile Discuss
- 7. The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice)
Options- A. Q = Cd x bH1 2gh
- B. Q = Cd x bH2 2gh
- C. Q = Cd x b ( H2 - H1 ) 2gh
- D. Q = Cd x bH 2gh Discuss
- 8. The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and width but depth is double that of 'A'. The elastic strength of beam B will be __________ as compared to beam A.
Options- A. same
- B. double
- C. four times
- D. six times Discuss
- 9. In a uniflow engine
Options- A. steam enters and exhausts through the same port
- B. steam enters at one end and exhausts at the centre
- C. steam enters at the centre and exhausts at the other end
- D. none of the above Discuss
- 10. In radial cams, the follower moves
Options- A. in a direction perpendicular to the cam axis
- B. in a direction parallel to the cam axis
- C. in any direction irrespective of cam axis
- D. along the cam axis Discuss
More questions
Correct Answer: mass production
Correct Answer: True
Correct Answer: producing a hole by removing metal along the circumference of a hollow cutting tool
Correct Answer: 4
Correct Answer: all of these
Correct Answer: the material A is more ductile than material B
Correct Answer: Q = Cd x b ( H2 - H1 ) 2gh
Correct Answer: four times
Correct Answer: steam enters at one end and exhausts at the centre
Correct Answer: in a direction perpendicular to the cam axis
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