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- Question
A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure. The centre of gravity of the section will lie
Options- A. in the shaded area
- B. in the hole
- C. at O
- Correct Answer
- in the shaded area
- 1. The machinability of aluminium increases when __________ is added to aluminium.
Options- A. copper
- B. magnesium
- C. silicon
- D. lead and bismuth Discuss
- 2. In electric resistance welding, pressure applied varies from
Options- A. 1 to 5 MPa
- B. 5 to 10 MPa
- C. 10 to 25 MPa
- D. 25 to 55 MPa Discuss
- 3. Line organisation is suitable for a big organisation.
Options- A. Correct
- B. Incorrect Discuss
- 4. The ratio of the isentropic work to the Euler's work is known as pressure coefficient.
Options- A. Yes
- B. No Discuss
- 5. An activity of the project is graphically represented by __________ on the network diagram.
Options- A. a circle
- B. a straight line
- C. an arrow Discuss
- 6. The size of a lathe is specified by the
Options- A. length between centres
- B. swing diameter over the bed
- C. swing diameter over the carriage
- D. all of these Discuss
- 7. In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in
Options- A. exit nozzle, which is a constant volume process
- B. exit nozzle, which is essentially an isentropic process
- C. turbine blades, which is a constant volume process
- D. turbine blades, which is essentially an isentropic process Discuss
- 8. The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called
Options- A. truing
- B. dressing
- C. facing
- D. clearing Discuss
- 9. The maximum shear stress is __________ the algebraic difference of maximum and minimum normal stresses.
Options- A. equal to
- B. one-fourth
- C. one-half
- D. twice Discuss
- 10. PERT is applied for
Options- A. marketing programmes and advertising programmes
- B. installation of machinery
- C. research and development of products
- D. all of these Discuss
More questions
Correct Answer: lead and bismuth
Correct Answer: 25 to 55 MPa
Correct Answer: Incorrect
Correct Answer: Yes
Correct Answer: an arrow
Correct Answer: all of these
Correct Answer: turbine blades, which is essentially an isentropic process
Correct Answer: truing
Correct Answer: one-half
Correct Answer: all of these
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