Description : The major disadvantage of self-threaded pins is: A. Friction locked B. Too expensive C. Not all sizes available D. May cause tooth cracking
Last Answer : D. May cause tooth cracking
Description : A vital tooth has a crown cemented to a pin-retained amalgam core; where does a failure occur: A. Between crown and cement B. Between core and cement C. In the crown and the root D. In the core and the margin preparation
Last Answer : B. Between core and cement
Description : Which of the following does not affect the elasticity of retentive clasp? A. Length of the arm B. The cross section shape C. The material used D. The undercut area
Last Answer : D. The undercut area
Description : Flexibility of the retentive clasp arm does not relate to: A. Length B. Cross section C. Material D. Degree of taper E. Under cut area
Last Answer : E. Under cut area
Description : Flexibility of the retentive clasp arm depends on: A. Length B. Cross section C. Material D. Degree of taper E. All of the above
Last Answer : E. All of the above
Description : What is the relationship of the retentive portion of the partial dentures retainers to the survey line of abutment: A. Gingival /Below/ B. Occlusal /Above/ C. No relation
Last Answer : A. Gingival /Below/
Description : Where is the retentive position on teeth according to the survey line: A. Below the height of contour B. Next to gingival margins
Last Answer : A. Below the height of contour
Description : .The undercut for Cobalt Chrome’s retentive arm clasp is, A. 0.75mm B. 0.50mm C. 0.25mm
Last Answer : C. 0.25mm
Description : Which is the more retentive form for an anterior bridge A. ¾ partial veneer crown B. Class V inlay C. Pinlay Veneer D. Class III inlay with pins
Last Answer : A. ¾ partial veneer crown
Description : Optimum penetration of a .024 or .031 inch self-threading pin in dentin is . . . a. 0.5 mm b. 1.0 mm c. 2.0 mm d. 2.5 mm e. 3.0 mm
Last Answer : c. 2.0 mm
Description : Which of the following has proven to be the MOST important in community preventive program: A. Dental awareness of the community B. Institution of oral hygiene measures C. Water fluoridation
Last Answer : C. Water fluoridation
Description : In a vital pulp therapy, what is the optimum depth for a pin hole in a tooth: A. 4-5mm B. Approximately 2mm C. Less than 2mm D. 1-1.5mm
Last Answer : A. 4-5mm
Description : A seven years-old boy fell off his bicycle 2 weeks ago and broke his maxillary central incisor. The pulp horn is visible as a pin point. The tooth is vital. Your treatment will be: A. Pulpectomy B. Place calcium hydroxide and fill with composite resin C. Calcium hydroxide pulpotomy
Last Answer : C. Calcium hydroxide pulpotomy
Description : Pin Restoration with which material has the best retention: A. Amalgam B. Gold inlay C. Composite D. Glass Ionomer
Last Answer : C. Composite
Description : The retention pin in an amalgam restoration should be placed, A. Parallel to the outer wall B. Parallel to the long axis of tooth
Last Answer : A. Parallel to the outer wall
Description : The extremely self centred nature of man has proven himself capable of more destruction than mother nature herself. What do you think?
Last Answer : No sayings are ever completely accurate. Humans can’t do the same amount of damage that a hurricane or earthquake could do in the same amount of time. But, the humans do intentionally do damage, while natural events don’t.
Description : Can self-awareness be proven?
Last Answer : I am not aware of any scientific studies that can prove the material existance of “awareness.” I could be wrong, anybody knows of one feel free to say. However, I know that I am here. That is enough for me to ask questions about the world and the universe. What do you mean by preternatural?
Description : When the patient is encouraged to concentrate on a pleasant experience or restful scene, the cognitive coping strategy being employed by the nurse is a) imagery. Imagery has proven effective ... contracting and relaxing muscle groups and is a physical coping strategy as opposed to cognitive.
Last Answer : a) imagery. Imagery has proven effective for oncology patients.
Description : Jam nut is a locking device in which (A) A smaller nut is tightened against main nut creating friction at the contacting surface (B) A split pin is passed through diametrically opposite slots in nut and ... parts of nut separated by slot (D) An elastic piece is tightened in the nut by a setscrew
Last Answer : (A) A smaller nut is tightened against main nut creating friction at the contacting surface
Description : Castle nut is a locking device in which (A) A smaller nut is tightened against main nut creating friction at the contacting surface (B) A split pin is passed through diametrically opposite slots in nut and ... of nut separated by slot (D) An elastic piece is tightened in the nut by a setscrew
Last Answer : (B) A split pin is passed through diametrically opposite slots in nut and a hole in bolt and the two ends of split pin are separated and bent back on nut
Description : In the coastal lowland of Kerala two crops of rice is grown per year because of: [IAS 2003] 1. high temperature in winter 2. adequate rain throughout the year 3. adequate irrigation facility 4. presence of water retentive clayey loam soil (a) Only 1 (b) 2 and 3 (c) 1 and 2 (d) 1, 3, and 4
Last Answer : Ans: (c)
Description : Of the following statements about the major soil types, the incorrect one is : (a) alluvial soils are easy to plough (b) red soils are rich in phosphorus, nitrogen and lime content ( ... regions which receive heavy seasonal rainfall (d) black soil is highly retentive of moisture and very productive
Last Answer : Ans: (b)
Description : The clinical advantage of porcelain laminate veneers over composite resin veneers is: A. Color stability and resistance to abrasion B. Availability of self-curing or light activated placement (yes but not ... dentist's abilities) D. May be used in edge to edge occlusion or Class III relationships.
Last Answer : A. Color stability and resistance to abrasion
Description : How long should acrylic self-cure special trays been made prior to taking impression: A. 12 hrs B. Immediately after fabricating it C. After been left in water for an hour D. Wait for an hour before pouring
Last Answer : A. 12 hrs
Description : Self polymerising acrylic resins differ from heat cured resins because they exhibit: A. Higher molecules weight B. Higher content of residual monomers
Last Answer : B. Higher content of residual monomers
Description : The un-polymerized monomer in Self-cured resin is approximately:** A. 0.5% B. 2.5% C. 5% D. 10%
Last Answer : C. 5%
Description : When repairing a fracture of a lower complete denture, which statement is correct: A. Self curing will distort the denture B. Cold curing will not be strong enough because of small area of attachment C. There is a possibility of occlusal disharmony
Last Answer : C. There is a possibility of occlusal disharmony
Description : In comparison to jump clutchs, advantages of the friction safety clutches is/are a) More consistent break away torque b) No damageing peak during slippage c) Protecting a drive from high freuency peak torque (2-3 time normal values) d) All of the above
Last Answer : d) All of the above
Description : Which of the following statements is/are true regarding requirements for receptacle outlets aboard vessels? A. Each receptacle outlet operating at 100 volts or more must have a grounding pole. B. Outlets ... machinery with a portable light having a 50 foot flexible cord. D. All of the above.
Last Answer : Answer: A
Description : In a 3-insulator string voltage distribution system the ratio of capacitance between pin and earth to the self capacitance of each unit is 1/4. If the potential across the top unit is 8 kV, then the string voltage is (A) 22.5 kV (B) 24 kV (C) 26 kV (D) 32.5 kV
Last Answer : In a 3-insulator string voltage distribution system the ratio of capacitance between pin and earth to the self capacitance of each unit is 1/4. If the potential across the top unit is 8 kV, then the string voltage is 32.5 kV
Description : An idiot threaded my eyebrows horribly, will they ever grow back?
Last Answer : They will. Give it time but they will. And they will grow back same as before. It takes many years of plucking or threading before they won’t come back, and you haven’t done that.
Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 60. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.90 b.120 c.60 d.45 e.107 dynes
Last Answer : a. 90
Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 80. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.60 b.45 c.120 d.107 dynes e.90
Last Answer : c. 120
Description : Who invented the threaded Jenny ?
Last Answer : James Hargreaves discovers the thread Jenny.
Description : I know there are different rules for men than for women, but what are the rules for fastening your belt?
Last Answer : It is customary to fasten the belt from left to right. There are also direct-patterned buckled belts, usually designed to be threaded from left to right. But I think who gets it. The one with the left guarantor is the other way around.
Description : Do I need threaded or flanged type of vacuum relief valve?
Last Answer : You should take your current one off and see what type you have. If you can't take it off, then you should go down to your local parts store and ask them which one your vehicle takes. They have a huge database that typically lists all of the different parts that are needed.
Description : The shear plane in case of bolts should (a) be across threaded portion of shank (b) be parallel to axis of bolt (c) be normal to threaded portion of shank (d) never be across the threaded portion (e) none of the above.
Last Answer : (d) never be across the threaded portion
Description : If a fastener is threaded into a tapped hole, then the fastener is likely to be called as a) Screw b) Bolt c) Washer d) Screw or bolt
Last Answer : a) Screw
Description : Which type of joints is better when the product is subjected to large vibrations: welded or threaded? a) Welded b) Threaded c) Both have same results d) Depends on the magnitude of the vibrational force
Last Answer : a) Welded
Description : Threaded joints are non-separable joints. a) True b) False
Last Answer : b) False
Description : Maximum efficiency of a square threaded is given by a) 1-sinǾ/1+sinǾ b) 1+sinǾ/1-sinǾ c) 1-2sinǾ/1+2sinǾ d) 1+2sinǾ/1-2sinǾ
Last Answer : a) 1-sinǾ/1+sinǾ
Description : Which type of screw fasteners are threaded through out its length? a. Cap screws b. Set screws c. Studs d. Tap bolt
Last Answer : b. Set screws
Description : The maximum efficiency of a square threaded screw is (A) (1 - sinφ)/ (1 + sinφ) (B) (1 + sinφ)/ (1 - sinφ)s (C) (1 - sinφ)/ (1 + cosφ) (D) (1 + cosφ)/ (1 - sinφ)
Last Answer : (A) (1 - sinφ)/ (1 + sinφ)
Description : Which of the following fastening devices has its both ends threaded? (A) Bolt (B) Stud (C) Set screw (D) Split nut
Last Answer : (B) Stud
Description : What class threaded flange is made without a counter-bore? a) 150. b) 300 and lower. c) 400 and lower. d) 600 and lower.
Last Answer : a) 150.
Description : Socket welded or threaded flanges are not recommended outside which of the following temperature ranges if severe thermal cycling or gradients are expected? a) -20°-300°F. b) -50°-500°F. c) -50°-750°F. d) -20°-500°F.
Last Answer : b) -50°-500°F.
Description : Screw jack can be adjusted no more than? a. 300mm (12 inches) of threaded length showing b. 2/3 of the total threaded length showing c. 150mm (6 inches) of threaded length showing d. 1/3 of the total threaded length showing
Last Answer : b. 2/3 of the total threaded length showing
Description : Threaded Bushing
Last Answer : What is a Threaded Bushing? First off, a threaded bushing is a helical or tapered bushing used to convert between rotational and linear movement or force. It connects threaded pipes ... installation, and therefore many municipal plumbing codes restrict the use of threaded plastic pipe fittings.
Description : Have you had a dental crown re-cemented after it fell off ?
Last Answer : No, not a permanent one. Usually there is damage/rot under the crown and that is why it fell off. More work to the tooth is required before another crown is put on.
Description : i have a cemented backyard. can i pour some black soil on it and plant green grass?
Last Answer : Paint the cement green and put out fancy pots of flowers and other decorations. My parents moved into a house with a cement front yard and loved it. They never wanted grass to mow, water, fertilize, mow, water, fertilize, etc.